German Medina It 's experiences

HMTS, Inicializando "BridgePort Configurator"

2009-03-05T22:46:00.008-05:00

Product : CATV

Part Involved : HMTS

Summary : Manual of user - Chapter 2

Company : ISP on Ecuador

Reference Date : March 2009

2.- Inicializando la aplicación "BridgePort Configurator"

Sobre el escritorio hacer doble click sobre el siguiente icono "BridgePort Configurator" para invocar la aplicación de software :

Entonces se procede a establecer una conexión virtual con el HMTS, a través de los siguientes pasos :

(1).- Click sobre el icono "connect" para establecer la conexión.

(2).- Precisar el ip de conexión y confirmar con el botón "connect".

(3).- Confirmar que la mensajería de la parte inferior se ejecuta satisfactoriamente. En esta parte de la ejecución de la aplicación procede a recuperar información acerca de : (a) direccionamiento ip del HMTS, (b) información de configuración del modem, (c) confirmación del servidor trap asignado para notificar la mensajería, (d) parámetros de comunicación y frecuencia que utilizará el HMTS.

En tanto que los valores de configuración y frecuencias que utilizará el HMTS, serán configurados haciendo click en el botón "HMTS" (en la parte izquierda inferior de la pantalla) de la siguiente manera (recomendado por el fabricante) :

HMTS Properties Admin.State Active

HMTS Properties Frecuency Switch Method Automatic

SNMP Properties Timeout (ms) 2000

SNMP Properties Broadcast delay (ms) 2000

Registration Settings Proxy Type Proxy Based

Registration Settings Ip Management Automatic

Registration Settings Community Management Automatic

Registration Settings Default Community String Public

Poll Delay Settings MAC PDU Timeout (ms) 15

Poll Delay Settings Talk PDU Timeout (ms) 1200

Poll Delay Settings MAC Broadcast Delay (ms) 100

Poll Delay Settings CHNL DESC Broadcast Interval (s) 30

Poll Delay Settings Time Broadcast Interval (s) 3600

Enable Contention Registration Interval (s) 20

Enable Contention Registration Duration (s) 5

Enable Trap Contention Trap Contention Interval(s) 20 Trap

Enable Trap Contention Contention Duration (s) 5

Acerca de la configuración del "MODEM" del HMTS, se procede a asignar los valores correspondientes a : (a) Número de tarjeta MODEM (0 -cero-), (b) Frecuencia de Transmisión (52 Mhz), (c) Frecuencia de Recepción (13 Mhz); estos últimos datos b y c son tomados en base al Plan de Frecuencias propuesto en el diseño de la red, (d) y bajo el parámetro "Switch Address" se escribe el número de serie eléctrica que corresponde al "RF SWITCH" que generalmente éste número se encuentra en una etiqueta sobre la parte frontal del "RF SWITCH" y a continuación el pantallazo de la configuración ya descrita: (recuerde que la vista de la parte frontal del RF SWITCH en detalle lo encuentra en el siguiente link http://germanmedinavirtual.blogspot.com/2009/02/hmts.html )

El siguiente paso es confirmar el servidor trap, a través del cual se le indica al HMTS donde debe enviar toda la mensajería generada en el mismo HMTS, tal como se anexa a continuación :

For more information check on : http://www.youtube.com/mistergmedina#p/a/u/2/OFB6v4nnl4M

HMTS, Turn On HMTS

2009-02-14T21:39:00.003-05:00

Product : CATV

Part Involved : HMTS

Summary : HMTS, Manual of user , Chapter 1

Company : ISP on Ecuador

Reference Date : February 2009

1.- Encendiendo por primera vez el HMTS

Acerca del equipo HMTS este debe estar firmemente anclado y sujetado, aparte que debe contar con el fluído eléctrico y debidamente conectado desde el outlet de la toma eléctrica hasta la parte posterior del contacto de la fuente del equipo mismo. Se debe tomar en cuenta las siguientes consideraciones adicionales :

Igualmente en la siguiente toma se aprecia los cables de recepción (RxA y RxB) de color rojo que se conectarán desde la parte posterior del HMTS hasta el RF Switch y en la parte inferior del mismo slot se identifica el cable de color negro que se dirige hacia la red combinatoria de transmisión en la etapa del Broadcast

Recuerde que el RF Switch es el que efectua el pooling (en la siguiente vista se aprecia la parte posterior del "RF Switch" que se según el diseño de la red HFC de esta empresa de cable a modo de ejemplo este equipo (RF SWitch) tambien debe ser firmemente sujetado en la parte superior del HMTS, por lo tanto aquí se puede diferenciar las siguientes conexiones, tomando como referencia la siguiente toma de la parte posterior del "RF Switch": (a) Desde el ComA y ComB del "RF Switch" hasta los RxA y RxB del HMTS, (b) el rango de cables de los conectores A1..A8 del "RF Switch" se derivan hacia la parte combinatoria de recepción, (c) mientras el cable plomo (ubicado al lado izquierdo) del RF SWITCH (conectado en "In") con conector RJ11 -revise la foto de arriba-), esta ultima conexión sirve de alimentación de energía que el HMTS le provee al RF SWITCH.
En la siguiente toma se puede apreciar lo siguiente : (a) encerrado en un circulo rojo está la etiqueta adhesiva pegada sobre la parte frontal del "Switch RF" que identifica la serie eléctrica del equipo, éste número es tomado durante la primera inicialización que sirve para configurar por primera vez el modem del HMTS, (b) encerrado en un círculo verde se ven los leds horizontales y cuando estos encienden en forma secuencial de izquierda a derecha significa que la acción del pooling está en plena ejecución y que los servicios del "BridgePort" están levantados y se encuentran en servicio.

Asi que con respecto a la tarea de efectuar el pooling se presentan dos condiciones : (1) Se denomina "Bridge Port" cuando el equipo RF SWITCH ha iniciado el pooling ó cuando ha inicializado la búsqueda secuencial de todos los nodos conectado de la red HFC a la cual pertenece, (2) físicamente se comprueba que el pooling se está ejecutando cuando los leds del equipo "RF SWITCH" empiezan a desplazarse de izquierda a derecha en forma secuencial. Visto desde el HMTS esta acción se traduce cuando el icono del "BrirdgePort" ubicado en la parte inferior derecha del escritorio cambia de estado mostrando un icono tal como se muestra a continuación :

Según tiempos tomados y estimados en base a la redes HFC de proveedores del negocio de tv por cable, el tiempo máximo de carga (en el que se debe levantar el servicio) del "Bridge Port" no debe exceder de los 3 minutos.

Otro punto adicional que se debe tomar en cuenta, es que se debe asegurar de que la conexión ethernet esté operativa : (1) en forma visual contrastando que el led de la tarjeta de red en la parte posterior del HMTS está parpadeando, (2) Asignando el ip correspondiente al HMTS según el plan de distribución de subneteo de la red HFC del proveedor, confirmando de esta manera : ip, según el plan de distribución de subnet de la red HFC del proveedor del servicio de tv por cable, confirmando de esa manera : ip, mascara de red y puerta de enlace. En la siguiente toma se aprecia la parte posterior del HMTS y en el slot de la derecha se

identifica la tarjeta de red conjuntamente con el cable de red conectado, a la izquierda de este slot se encuentra una bahia de USB para instalar el mouse y el teclado cuando se va a efectuar una rutina de operación y mantenimiento localmente en el mismo equipo.

Una vez que la configuración de red ha sido confirmada y que puede ser comprobada a través de una ventana de DOS con el siguiente comando :

ipconfig (ENTER)

El HMTS se encuentra listo para :

(1) Ser tomado remotamente desde el VNC a través de la dirección Ip del HMTS.

(2) Toda la información que recolecta el HMTS puede reflejarse en el HFC Manager

Pruebas adicionales de conectividad que recomendamos ejecutar desde este punto (desde el mismo HMTS) son :

(1) Ejecute el comando ping al ip que esta configurado en la interface ethernet de la tarjeta de red del mismo HMTS (descarte problemas de la tarjeta de red).

(2) Ejecute el comando ping a la puerta de enlace configurado en la interface ethernet de la tarjeta de red del mismo HMTS (para descartar problemas del cableado estructurado (UTP) desde el puerto de red del HMTS hasta el puerto del switch del mismo HUB).

(3) Ejecute el comando ping con destino al HFC MANAGER -este ultimo por lo general instalado en el HeadEnd- (para confirmar toda la ruta por la cual se reflejará el estado de conectividad entre el HMTS y el HFC MANAGER)

Para mas información revise el siguiente link :

http://www.youtube.com/mistergmedina#p/a/u/2/OFB6v4nnl4M

MisterGmedina YouTube Channel

CM process registration

2008-09-15T22:46:00.009-05:00

Product : CATV
Part Involved : CM Motorola SB5101
Summary: Checking levels of upstream path
Scenario : Ensure return commands to HeadEnd
Company : ISP on Ecuador
Reference Date : September 2008.

The fordward (downstrean) is based on 256QAM and checking returns values through web tool monitoring CM levels, we can find next between modulation and SNR

QPSK 18dB
16QAM 21dB
64QAM 30dB
256QAM 33dB

Local ip address assigned for CM is 192.168.100.1 and ensure the RF cable is connected into CM before to turn it.

Remember that , CM has its HFC MAC (ID based on hexadecimal number) and MTA MAC is the ID assigned to MTA (HFC MAC + 2), here I add some terms related to this issue :

- After the begin ranging process (CM and CMTS confirm power level and what time should synchronize, calculate delay of the link, search the CMTS's slot and set up the schedule list). CM registered with CMTS.

- MTA send a "DHCP discovery"

- DHCP Send MTA an IP address, provisioning mode, MTA TFTP filename and other information in the DHCP options

- MTA asks DNS to resolve Provisioning Server FQDN

- DNS responds with IP address of Provisioning Server

- MTA requests its Configuration File from TFTP Server

- TFTP responds with Telephony Configuration File

- MTA sends Sys Log notification of provisioning complete (optional)

- MTA sends SNMP NOTIFY of provisioning complete to Provisioning Server (optional)

CMTS & CM

2008-08-31T18:27:00.006-05:00

Product : CATV
Part Involved : CMTS BSR 64000
Summary: Connections involved from the HUB to the client
Scenario : Troubleshooting and following the best levels of RF
Company : ISP on Ecuador
Reference Date : August 2008.

Recomendations to follow :

- Always check the logic card configuration (domain) if this one was configured like 1x8 or 2x 1x4 and based on this will plug the test cable US / DS. For example ; talking about the configuration 2x 4x1 (with this ISP) DS0 is related to US 0,1,2,3 and DS1 is related to US 4,5,6,7, that is the downstream is loaded by 4 upstream.

- If CM was registered and this one is moved to several hubs, first connect the RF cable to CM and after that turn on it, otherwise the registration process takes more time because it is not going to find the downstream carrier will start to scan frecuencies.If CM does not get up, then check its status like as SNR levels, its probably the attenuation should be adjusted, and cables on bad states can cause communications problems between CM and CMTS

Take next as level of reference :
CMTS Tx = +55dBmV
CMTS Rx = +14dBmV (+/- 1dB)
CM Tx = 35 to 55 dBmV
CM Rx = 0 dBmV (+/- 5 dBmV)

Raid over VmWare

2008-07-03T15:52:00.000-05:00

Product : Raid
Part Involved : Linux virtualization over VmWare
Summary: Management raid
Scenario : Testing & troubleshooting new features over linux
Company : National Institute of Cancer Sickness of Peru (INEN).
Reference Date : January 2008.

There are two videos that I have uploaded available taking this issue :
(1) Part 1 http://www.youtube.com/watch?v=gecy796j23o
(2) Part 2 http://www.youtube.com/watch?v=86n8rRyU29Y

and basically the command procedure follows the next steps :

> fdisk -l
> fdisk /dev/sdh
m (menu)
n (add new partition)
p (primary partition)
1
391 (cylinder 1-391)
p (print partition table)
L (list type of partitions available)
fd (Linux Raid Auto)
t (change system identification of partition)
L (List)
fd (Linux Raid Auto)
p (print partition table)
w (save & exist)
> fdisk /dev/sdi
> fdisk /dev/sdj
> ls /dev/md0 -l
> mdadm --create /dev/md1 --level=1 --raid-devices=2 /dev/sdi1 /dev/sdj1
> mkfs.ext3 /dev/md1
> mkdir /oracle/
> mount /dev/md1 /oracle/
> df -lh
> cp /var/log/* /oracle/ -rf
> ls /oracle/
> vi /etc/fstab
** /dev/md1 /oracle ext3 defaults 0 0
:wq!

Power Off Computer
Erase disk7, disk9, disk10
Power On Computer

> df -lh
> mdadm --monitor /dev/md1
> ls /oracle/
> mkdir /oracle/hola/
> fdisk -l
** J does not have partition
> fdisk /dev/sdj
m (menu)
p (primary partition)
1-261
t (change system identification of partition)
fd (Linux Raid Auto)
p (print partition table)
w (save & exit)
> mdadm --manage /dev/md1 --add /dev/sdj1
> fdisk -l : less

Dlink & uPnP

2008-06-14T23:25:00.000-05:00

Product : dLink DCS 2100 & dLink DI-624
Part Involved : Port 1900 (UpNp)
Summary: With no appearently reason your LAN activity has increased a burst of broadcast
Scenario : There are some delays inserted into you LAN connections.
Company : National Cancer Institute of Peru (INEN).
Reference Date : February 2008 to April 2008.

There is a hidden knowledge that is only enough to assign an ip address an every equipment connect to our LAN connections, but what happen is this device saves to itself additional functions of routing tasks when at the begining was buyed to fullfill another function ?

But it works perfectly, after your plugged it on the outlet LAN (it is sure that you are going to forget it!), and that is according to my experience in the case of this two models, but monitored with the help of WinDump application in order to identify the device connected and the ports used, when and how.

I have attached two procedures videos to detect the activity to these ports related to this issues and the later steps to disable UpNp in the device.

I sure you, that this type broadcast will not become again, at least not for this reason !

Assign IP to CISCO 2960

2008-05-13T22:07:00.007-05:00

Product : CISCO 2960
Part Involved : Switching equipment.
Summary: Procedure of Ip configuration of switching equipment.
Scenario : Previous tasks to consider before to install switching equipment in tele room
Company : National Cancer Institute of Peru (INEN).
Reference Date : April 2008.

It is not possible to exploit the overall options of the switching equipment if this one previously is not defined and assigned the ip configuration, with this little step ensures the remote management of the equipment as the other hand you dispose : Open the conecction with the equipment to connect it by using internet explorer browser and telnet with cli commands.

As we can check, the video is based over the reviewing of the next concepts :
(1) The factory ip assigned of the switching equipment is 10.0.0.1
(2) The Pc is configured using the ip 10.0.0.200 in order to establish a connection with switching equipment.
(3) The Ip of the switching equipment is saved with the value 192.168.88.31
(4) the pc is reconfigured using the ip 192.168.88.200 with the purpose to establish connection with switching equipment and check its update of ip configuration.
(5) Check the video to confirm these steps.

! Remember, if you you do not proceed with the change of ip address of every new switching equipment you can crash your LAN connections because there are ip conflicts !

Later in another articles, I will take some ways to show you How to catch up some troubleshooting issues linked with this issue.

Handing RJ45 Jacks

2008-04-04T22:45:00.005-05:00

Product : RJ45 Jacks connectors over cat6.
Part Involved : Infrastructure of telecomunication room.
Summary: Management the ending of the horizontal cabling inside telecomunication rooms.
Scenario : A burst growing of the LAN data ports in your company.
Company : National Institute of Cancer of Peru (INEN).
Reference Date : April 2008.

Although add new data ports to the current structured cabling involved civil works in order to tending the cable, then another bottleneck does not consider the most time is the distribution of the space inside of the telecomunication room. Check with the next video , how the ending cable cat6 is not easy to hand -the cable is not soft, can be damaged if there is no previous precaution during tending task - and when this point is reached certainly the personnel assigned to this job come very dirty.

It is important to clear that pin wire assigned color of RJ45 jack connector of the telecomunication room should be fix with the RJ45 jack connector of the outlet box (office) assigned to that cabling connection.

The first part of video shows the procedure to insert the wire into RJ45 Jack connector following the color code based on Code A or Code B -assigning the same to telecomunication room and office- and put the connector inside of the patch panel, while the second part is focused on the front view of the telecomunication room to connect the patch cord from the patch panel port to the free switch port.

The full version is available on "YouTube videos hosted by German Medina" at the bottom right side of this page.

Warning with MSN chat

2008-03-15T19:41:00.006-05:00

Product : Trojan Virus
Part Involved : Security Issue.
Summary: A new virus threat has been hidden between MSN chat.
Scenario : Chat has changed our daily lives and imagine if that security is broken.
Company : Owner.
Reference Date : March 2007.

We are exposed to the most strange broadcast virus, it slides quickly between MSN chat conversation in every moment; the impact is very dangerous, because it hides itself behind the MSN chat conversation, then you appearently answer and following the main issue of your MSN chat conversation, when suddenly you receive an invitation to download some file (containing some pictures) adding a text like as "check my pictures taken on some place" and then you are ready to fire the cold chain.

I have seen when you are warn to receive the download file (appearently from your contact or friend) the contact disappear from the contact list (the virus disconnect him or her) while at the same time is inviting you to confirm to download the miracle file. Up to here, you are not consciosnous that you have lost the connection with your contact and you are close to open an unknown file. Imagine That !

In the extreme case when you download that file an execute it then you will notice that you lost the mouse control while the MSN chat window starts to flash and the another application flashs too. Then I recomend this :

1.- Unplug your LAN connection, then you will focus the control of mouse and every thing into desktop.

2.- Reset your computer and boot on safe mode and execute your AntiVirus system as first step

3.- Reset your computer and boot on normal mode and execute too your AntiVirus system as your next step.

The virus is identified as back door trojan and it saves a file named myspace-layout(1).jpg into the cookies and temporal carpets of Internet explorer.

Although I have checked that virus can send message into spanish and english, like as next pictures :

Export LAN configuration

2008-03-04T23:19:00.000-05:00

Product : Parameters used into LAN.
Part Involved : LAN configuration..
Summary: It is an interesting short procedure to export into a file all the parameters related with LAN configuration of your Pc.
Scenario : Adding diversity to use the file exported.
Company : National Institute of Cancer of Peru (INEN).
Reference Date : March 2008.

I suggest to some people to use next procedure to backup their LAN configuration, if your day to day is necessary changing LAN configuration then fixs you. Then from the command prompt windows (DOS) then type :

netsh dump>C:\IpConfiguration.txt

Here begin an example of that file ******
#========================
#Configuraci¢n de interfaz
#========================
pushd interface
reset all
popd
# Fin de la configuraci¢n de interfaz
#==========================
#Configuraci¢n de interfaz
#==========================
pushd interface ipv6
uninstall
popd
# Fin de la configuraci¢n de interfaz
# ------------------------------------
# Configuraci¢n de ISATAP
# ----------------------------------
pushd interface ipv6 isatap
popd
# Fin de configuraci¢n de ISATAP
# ----------------------------------
# Configuraci¢n de 6to4
# ----------------------------------
pushd interface ipv6 6to4
reset
popd
# Final de la configuraci¢n de 6to4
#==================================
# Configuraci¢n del puerto de proxy
#==================================
pushd interface portproxy
reset
popd
# Fin de configuraci¢n del puerto de proxy
# ---------------------------------------------
# Configuraci¢n de la interfaz IP
# ---------------------------------------------
pushd interface ip
# Configuraci¢n de la interfaz IP para "Conexi¢n de rea local"
set address name="Conexi¢n de rea local" source=static addr=192.168.31.11 mask=255.255.224.0
set dns name="Conexi¢n de rea local" source=static addr=none register=PRIMARY
set wins name="Conexi¢n de rea local" source=static addr=none
popd
# Fin de la configuraci¢n de la interfaz IP
# =========================================
# Configuraci¢n RAS
# =========================================
pushd ras
set authmode mode = standard
delete authtype type = PAP
delete authtype type = SPAP
delete authtype type = MD5CHAP
delete authtype type = MSCHAP
delete authtype type = MSCHAPv2
delete authtype type = EAP
add authtype type = MSCHAP
delete link type = SWC
delete link type = LCP
add link type = SWC
add link type = LCP
delete multilink type = MULTI
delete multilink type = BACP
add multilink type = MULTI
add multilink type = BACP
set user name = Administrador dialin = policy cbpolicy = none
set user name = Asistente de ayuda dialin = policy cbpolicy = none
set user name = Invitado dialin = policy cbpolicy = none
set user name = SUPPORT_388945a0 dialin = policy cbpolicy = none
set user name = VUSR_FILESERVER dialin = policy cbpolicy = none
set tracing component = * state = disabled
popd
# Final de la configuraci¢n RAS .
# -----------------------------------------
# Configuraci¢n de acceso remoto de AppleTalk
# -----------------------------------------
pushd ras appletalk
set negotiation mode = allowset access mode = all
popd
# Fin de la configuraci¢n de acceso remoto de AppleTalk.
# -----------------------------------------
# Configuraci¢n IP RAS
# -----------------------------------------
pushd ras ip
delete pool
set negotiation mode = allow
set access mode = all
set addrreq mode = deny
set broadcastnameresolution mode = disabled
set addrassign method = auto
popd
# Fin de la configuraci¢n IP RAS.
# -----------------------------------------
#Configuraci¢n IPX RAS
# -----------------------------------------
pushd ras ipx
set negotiation mode = allow
set access mode = all
set nodereq mode = allow
set netassign method = autosame
popd
# Fin de la configuraci¢n IPX RAS.
# -----------------------------------------
# Configuraci¢n NBF RAS
# -----------------------------------------
pushd ras netbeui
set negotiation mode = allow
set access mode = all
popd
# Fin de la configuraci¢n NBF RAS.
# -----------------------------------------
# Configuraci¢n RAS AAAA
# -----------------------------------------
pushd ras aaaa
set authentication provider = windows
set accounting provider = windows
delete authserver name = *delete acctserver name = *
popd
# Fin de configuraci¢n RAS AAAA.
# Configuraci¢n de enrutamiento
pushd routing
reset
popd
#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
## ## ANTES de ejecutar esta secuencia de comandos ## #
# Para restaurar la configuraci¢n del enrutador IPX #
# DESINSTALE IPX desde la carpeta Conexiones de red y #
# vuelva a instalarlo. ##
## Esto eliminar la anterior configuraci¢n del #
# enrutador IPX y la restaurar a sus valores #
# predeterminados ##
##!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#
#----------------------------------------------------------
# Configuraci¢n IPX
#----------------------------------------------------------
pushd routing ipx
#----------------------------------------------------------
# Configuraci¢n de la interfaz IPX
#----------------------------------------------------------
#----------------------------------------------------------
# Configuraci¢n del filtro de tr fico IPX
#----------------------------------------------------------
#----------------------------------------------------------
# Configuraci¢n de la ruta est tica IPX
#----------------------------------------------------------
#----------------------------------------------------------
# Configuraci¢n del servicio est tico IPX
#----------------------------------------------------------
popd
# Fin de la configuraci¢n IPX
#----------------------------------------------------------
# Configuraci¢n RIP IPX
#----------------------------------------------------------
pushd routing ipx rip
popd
# Fin de la configuraci¢n IPX RIP
#----------------------------------------------------------
# Configuraci¢n SAP IPX
#----------------------------------------------------------
pushd routing ipx sap
popd
# Fin de la configuraci¢n IPX SAP
#----------------------------------------------------------
# Configuraci¢n NETBIOS IPX
#----------------------------------------------------------
pushd routing ipx netbios
popd
# Fin de la configuraci¢n IPX NB
N§ de configuraci¢n IP
pushd routing ip
reset
set loglevel error
add preferenceforprotocol proto=LOCAL preflevel=1
add preferenceforprotocol proto=STATIC preflevel=3
add preferenceforprotocol proto=NONDOD preflevel=5
add preferenceforprotocol proto=AUTOSTATIC preflevel=7
add preferenceforprotocol proto=NetMgmt preflevel=10
add preferenceforprotocol proto=OSPF preflevel=110
add preferenceforprotocol proto=RIP preflevel=120
add interface name="Conexi¢n de rea local" state=enable
set filter name="Conexi¢n de rea local" fragcheck=disable
add interface name="{657F0909-4AD3-489F-9D92-31F8F9100540}" state=enable
set filter name="{657F0909-4AD3-489F-9D92-31F8F9100540}" fragcheck=disable
add interface name="{E5329AA6-02CF-4A1E-AE97-26DCA879A372}" state=enable
set filter name="{E5329AA6-02CF-4A1E-AE97-26DCA879A372}" fragcheck=disable
add interface name="Bucle invertido" state=enable
set filter name="Bucle invertido" fragcheck=disable
add interface name="Interno" state=enable
set filter name="Interno" fragcheck=disable
popd
# Fin de la configuraci¢n IP
# ----------------------------------
# Configuraci¢n proxy DNS
# ----------------------------------
pushd routing ip dnsproxy
uninstall
popd
# Fin de configuraci¢n proxy DNS

# ----------------------------------
# Configuraci¢n IGMP
# ----------------------------------
pushd routing ip igmp
uninstall
popd
# Fin de configuraci¢n IGMP

# ----------------------------------
# Configuraci¢n NAT
# ----------------------------------
pushd routing ip nat
uninstall
popd

# ----------------------------------
# Configuraci¢n OSPF
# ----------------------------------
pushd routing ip ospf
uninstall
popd
# Fin de configuraci¢n OSPF

# -----------------------------------
# Config. del Agente de retrans. DHCP
# -----------------------------------
pushd routing ip relay
uninstall
popd
# Fin de la configuraci¢n Agente de retransmisi¢n DHCP

# ----------------------------------
# Configuraci¢n RIP
# ----------------------------------
pushd routing ip rip
uninstall
popd
# Fin de configuraci¢n RIP

# -------------------------------------------------------------------------
# Configuraci¢n de descubrimiento de enrutadores
# -------------------------------------------------------------------------
pushd routing ip routerdiscovery
uninstall
add interface name="Conexi¢n de rea local" disc=disable minint=7 maxint=10 life=30 level=0
add interface name="{657F0909-4AD3-489F-9D92-31F8F9100540}" disc=disable minint=7 maxint=10 life=30 level=0
add interface name="{E5329AA6-02CF-4A1E-AE97-26DCA879A372}" disc=disable minint=7 maxint=10 life=30 level=0
add interface name="Bucle invertido" disc=disable minint=7 maxint=10 life=30 level=0
add interface name="Interno" disc=disable minint=7 maxint=10 life=30 level=0
popd
# ----------------------------------
# Configuraci¢n de asignador DHCP
# ----------------------------------
pushd routing ip autodhcp
uninstall
popd# Fin de configuraci¢n de asignador DHCP
# ------------------------------------
# Configuraci¢n de puente (no compatible)
# ------------------------------------
# ------------------------------------
# Final de la configuraci¢n del puente
# ------------------------------------
Here is the end of the example file ******

Following the purpose of my example, I have changed the ip address parameter painted in the above script (mark as blue font), then after saved that, and finally in order to update that configuration, run next command :

netsh exec C:\IpConfiguration.txt

Remember, this procedure is available too into "YouTube Videos hosted by German Medina -at the right side of this page-), like as the next video :

Iperf : Measuring your bandwidth (2)

2008-02-28T20:56:00.009-05:00

Product : Iperf
Part Involved : Measure of Bandwidth
Summary: When the answer of the command "ping" is not continue and you find a bouncing link then it is necessary to establish how is your bandwidth working.
Scenario : The delayed conecction inserted into LAN connection has a big impact on your LAN company.
Company : The National Cancer Institute of Peru (INEN).
Reference Date : February 2008.

That is in the case when your company has limited resources and there is no possible to hire some contractor to troubleshooting the event occured linked to LAN trouble. The another point is to share all the stages into LAN conecctions between : structured cabling, switching equipment and every other device connected into the path of the trace of your command "ping". That is, follows the trace of the signal locating the source and target place to test the connecction of that band width .

Additionally, the answer of the comand "ping" has its own limitation when the answer is not continuos, in that case how can you determine the source of the problem, that is focusing on the measure of the bandwidth of that segment of LAN.

Here, you will find an interesting video captured http://www.youtube.com/watch?v=oPWMgZ8mMng about two measures did (and the process involved) at the same time on the same screen, reading values of the how the Server is looking that link and how Client is looking the same link.

Installing Red Hat over VmWare

2008-02-21T16:19:00.003-05:00

Product : Linux
Part Involved : Red Hat
Summary: Installation of Red Hat Linux distribution.
Scenario : The installation procedure has been installed over virtual Machine (using VmWare).
Company : owner.
Reference Date : February 2008.

The overall procedure to install Red Hat over VmWare has been uploaded into next links :
Part 1 : Http://www.youtube.com/watch?v=x6MpBPIVqho
Part 2 : http://www.youtube.com/watch?v=mjCHSBK2lEw
Part 3 : http://www.youtube.com/watch?v=_nd3brZC86A
Part 4 : http://www.youtube.com/watch?v=Oa_wphK8MW0

Relax, if your bandwidth or your hardware does not permit check the videos, then send me an e-email and I will replay you with the videos or in the last instance I would up load in some server with access in internet to download that files.

Troubleshooting LAN connections

2008-01-21T18:37:00.002-05:00

Product : Links connections are bouncing.
Part Involved : LAN
Summary : The purveyor has installled three new data LAN ports close to magnetic resonance scanner
Scenario : Personnel of Computing office suspects about the field emitted of magnetic resonance scanner.
Company : The National Cancer Institute of Peru (INEN).
Reference Date : January 2008.

After the installation of the three LAN data ports the purveyor proceeded to testing the structured cabling related to these points and all of them passed successfully. That was a dark threshold to find the seed core of the problem. The simple tests did by personnel of computing office using the ping command throw that the connection was not solid, the time of response vary from time to time with not appearently some type of pattern related to it, then it started to suspects about the RF emitted of magnetic resonance scanner. The structured cabling was based on CAT6 and up to here there is no more evidences available to establish a technical diagnostic.

I have downloaded and installed a software tool to measure the bandwidth http://germanmedinavirtual.blogspot.com/2008/01/iperf-measuring-your-bandwidth.html between the LAN data port with problems and another pc at the other side of the networking structure -last one without problems-, then I begun to collect samples of connection between these two LAN data ports, one with the response time of the ping command and at the same time measuring the bandwidth using Iperf. Then the next video shows this process http://www.youtube.com/watch?v=mgKOd2eTLuU and the results gets while the software applications are executed querying to database , for example in this case the average of the bandwidth obtained reached 68MBits/Sec (too low).

Taking this reference it is clear way that there is a considerable loss detected into the link, the next step was to identify what device is causing this efffect and that was focused into some switch previous to the main switch close to telecommunication room; after it was replaced then the process to collecting samples from the link connection was repeated again such as I show at http://www.youtube.com/watch?v=xLiCfB8N06c reading a considerable differences of the bandwidth up to 93 MBits/Sec.

Here is, another case resolved.

Installing Panda Console

2008-01-11T21:57:00.001-05:00

Product : AntiVirus
Part Involved : Panda Console
Summary: The console does not download the agent and can not connect with the clients computers on LAN.
Scenario : There is a big range of clients computers without virus software updated .
Company : The National cancer Institute of Peru. (INEN)
Reference Date : January 2008.

I asked to purveyor to reinstall again the console application and they accepted my idea but they suggested too : Do not touch database antivirus plattaform or additionally instance related to it, then under the title "YouTube videos hosted by German Medina" with title "Installing Panda Console", you will find, the process filed. But this task does not resolved yet: (a) the download automation of the agent into console, (b) the update of the agent process in every client computer.

Iperf : Measuring your bandwidth (1)

2008-01-04T19:06:00.002-05:00

Product : Iperf
Part Involved : Measure of bandwidth
Summary: Into my LAN connections, I want to measure the bandwidth between two data ports of my LAN.
Scenario : Troubleshooting and detect what type of applications executed into pc spends more networking resources.
Company : The National Cancer Institute of Peru (INEN).
Reference Date : January 2008.

After several tries of testing then I recomend you this excelent tool to follow and measure your bandwidth between two LAN locations designated by you.

1.- The executable file can be downloaded on : http://dast.nlanr.net/Projects/Iperf/ and is free and there are available on all the range of exe file for every plattform base of operating system.
2.- Locate the two data ports to test and marked one as "Server" while the other as "Client".
3.- After downloaded the executable file, proceed to unzip and placed it on some carpet.
4.- At the Server side you should type next command to enable the listen task:
> Ipers -s

5.- Adding the next flags you can configure at the Server and Client sides :
-w (size of TCP windows)
-t (the frecuency to throw the results on screen)
-f (using results based on : KBits, MBits, KBytes, MBytes)
6.- Then at the Client side you can adjust the command like than :
> Iperf -c 10.10.25.24 -t 1 -f KBytes -w 300K
"Testing from Client pc to 10.10.25.24 with updates of row information every 1 second, using the format KBytes with 300K of buffer socket size. "

Video & Audio Streaming Concepts

2007-12-03T08:27:00.000-05:00

Product : Linux.
Part involved : Streaming Server facilities.
Summary : Clears the way how this technology works.
Scenario : It is part of a free training program taught by COS-PERU.
Company : Open Source Center of Peru (COS-PERU).
Reference date : December 2007.

There are several services such as : radio and tv looking the way to change the broadcast of its signal information and opens the way to access them from internet selecting web browser since your computer. That is integration of Radio&Tv using ip technology.

Radio & TV have use the same requirements to build it and these ones are :

1.- Spread Server
2.- Broadcast Client (Life)
3.- Bandwidth assigned

The techniques used to transmit audio and data (video) is named "streaming". Then the Spread Server (1) managements and emits the streaming signal to www. About the quantity of simultaneous connections supported is called "concurrence" and can be calculated by how do you spend the concurrence resource of Spread Server. Then, next, we find a few samples of needs required for every type of broadcast.

Audio 24Kbps for every user connected
Video 100Kbps for every user connected

Buffer of the Spread Server.- Initially this parameter is considered to program and save space to concurrence concept, check next example :

- If my computer (1.-) has 1G RAM conifigured with 8K Buffer RAM, how many users can be attended ?

Remember that 1G= 1024K, then 1024/8= 128 users or concurrence top value.
The widthband (3.-) used by these concurrence connections then is calculated such as follow for :

Audio = 24 x 128 users = 3,072Kbps
Video = 100x 128 users = 12,800 Kbps
At this point, It's clear how many bandwidth will be used or How can I adjust this resource according to the available of bandwidth of my provider (ISP).

Related to the software used by Spread Server (1.-), we find next software free application to fullfill with this purpose : ShoutCast, IceCast, StreamCast, while these applications assigned carpets into server to every audio and video files to share and save information.

The Broadcast Client (2.-) converts the analog signal into digital signal through video capturer card (video broadcast case) while the client computer (user placed in office or home connected through www) needs to support multimedia basically since the applications WinAmp, Real Player, Windows Media to connect to (2.-).

There is a video example attached to show (2.-) under main title "YouTube Videos hosted by German Medina" at the right bottom of this page and select title "Video Streaming Concepts" for more information.

Handing Fiber Optical Connectors

2007-11-02T22:58:00.000-05:00

Product : Fiber Optical Connector
Part Involved : SC connector
Summary: Procedure to prepare, weld with epoxy fiber optical connectors.
Scenario : Upgrading of Networking infrastructure.
Company : Minister of Health of Peru (MINSA).
Reference Date : November 2007.

I have uploaded an interesting video with the step by step to reach with this goal.
Check at the right-bottom side of this page under section "YouTube Videos hosted by German Medina" under title "Handing Fiber Optics Connectors" to watched my video uploaded.

Gutsy Gibbon Peru

2007-10-27T10:21:00.000-05:00

Product : Linux.
Part involved : Gutsy Gibbon.
Summary : Peruvian launch of Gutsy Gibbon.
Scenario : A set of conference given by Linux experts in this event into "Open Source Center of Lima Peru" .
Company : Open Source Center of Peru.
Reference date : October 2007.

It was a pleasure to find an optimistic group of people leadering Linux issue with no more advertisment than the own enthusiam spread by this team of Linux experts and I could see the information presented was fulfill with the best quality, the invited people asked all the question that they wanted while at the same time the presenter was answering without tire to take every issue taken into presentation. Next you will find www to contact them :

Open Source Center of Lima Peru http://www.cosperu.com/
Ubuntu Peru Team http://www.ubuntu-pe.org/

You will find an insteresting video captured about this event at the right-down side of my blog under title "You Tube Videos hosted by German Medina".

Panasonic D500

2007-10-25T15:36:00.000-05:00

Product : PBX
Part Involved : Panasonic D500
Summary: I gave a presentation about the basic concepts used in telephone systems
Scenario : The enviroment belongs to celebrate the anniversary of "Telecommunication Office of Maria Auxiliadora Hospital".
Company : Maria Auxiliadora Hospital of Peru (HMA).
Reference Date : October 2007.

At the right-down side of my blog, I have added an additional video about PBX founded in this visit "Panasonic D500 on HMA" and related about the presentation of the concepts taken were :

-E1 or Primary : It is a set of traffic channel grouped into the same physical connection, then there are 30 traffic channels and 2 signaling channel assocciated to this type of conecction. In the most of the cases the Telephone carrier provider install an end baloom containing the U-links connector into local client to establish the point connection to PBX with a 75 ohms (through the primary card). Every traffic channel is 64Kbps (like as signaling channel) but the process of compressed a traffic channel included in several PBX brands can modify the bandwidth of the traffic channel versus quality of the calling party.

-An introduction of extension technology used into PBX systems : analog, digital and IP handset phones; Analog extension can be swaped with telephone handset used into analog trunk conecctions, the bandwidth used is 64Kbps and it is possible set up a parallel conecctions to this terminal; related to digital extensions, these are closed linked to the brand of the PBX and signaling between them (PBX and extension) belong to propietary coding, anyway the additionally functions added to this type of terminal are placed to directors, Chiefs and supervisors into company, in this case is not possible to make parallel connections to this extension; about Ip extensions takes various concepts from digital extensions : Propietary addtional coding Protocols and suggest the importance of the structured cabling systems as main piece into implementation of this type of project, into PBX is inserted an Ethernet/Ip card to connect from PBX to structured cabling, the concept of mobility of the Ip extensions is introduced with this type of technology that should be balanced with others parameters such as QoS, domains of colissions, VLANs, degree of service, ratio compressed of traffic channel should be additional parameters to find the best performance with this type of communications established.

- The importance of calling management software in order to establish the scale of cost calling for every office and every trunk available installed into PBX , taking the way to clear what type of calling services are most used compared with others and fortify the weak devices connected or detect the failured devices that are not working properly with the capacity begun installed.

IEDS

2007-09-27T22:31:00.000-05:00

Product : IEDS (Standard Identification of Health Data).
Part Involved : Catalogs introduced: "Places Building of Health" and "Producing units of Health Services" .
Summary : Looking to join data health information between all producing units of health of the country.
Scenario : Presentation of the catalogs is focusing to share and join all the health information and trace a method to search a "key health data" from the overall health institutions of the country.
Company : Minister of Health of Peru (MINSA).
Reference date : September 2007.

September 27, 2007 at “El Condado” Hotel was the presentation of the Catalogs “Places Building of Health” and “Producing Units of Health Services”, these ones belongs to IEDS, through the benefits of the IEDS I can highlight : (1) implementation of the only Clinical History concept into Health departament of the country, (2) Drives the process into health sector of the goverment, (3) Implementation of National DataBase of Health, (4) Insurances services, Bank would access to health information to take decisions, (5) A programming of buy pack into health sector for goverment.

The Catalog “Producing Units of Health Services” proposes a new structure of producing units linked to their respective cost center and set up a new identification coding to every specialist of medicine associated to every cost center, such as clear way to interconect data fields between institutions.
In Reference of “Places Building of Health” catalog, it has been programmed “The National Record of Places Building of Health (RENAES)”, through a web interface every Health Institution in the country should be filled information related to its own institution and later the update information process should be responsible to every institution (administration) while the system generates an own code identification appended a new record to IEDS database then query information can be accessed by internal and external users. The manager assigned in charge is “The General Direction of Health of people (DGSP) of MINSA.

About this topic, I can add that MINSA has advanced into the first step of e-goverment services because focused on next objectives : (1) Main Health Database available, (2) Global Access to Health information, (3) The value added of health services can be programmed from this point (move patients, stock of medicine, global of trace of clinical history of patients in the entire country and so on).

I have added Videos related to this issue at the right side of the screen

Installing Ubuntu Linux over VmWare

2007-09-26T08:05:00.000-05:00

Product : Linux
Part Involved : Ubuntu
Summary: Procedure to install Ubuntu over VmWare
Scenario : I am using my Pc to work with xp and Ubuntu at the same time.
Company : Owner.
Reference Date : September 2007.

Follow next tips :

1.- Click on http://www.ubuntu.com/getubuntu/download and download your preference installation according to your requirements, at this topic I want to advanced to you that Server edition is not complete and later you will need to download additionally files to complete your installation. And about the type of computer that you have to select, check on "Standard personal computers" in 32 bits case.
2.- At the end of the download process you will find an iso file (image of installation).
3.- To test the iso file go to https://help.ubuntu.com/community/HowToMD5SUM and download MD5SUM exe file, after that install it, and execute on the same carpet location of your iso file:

4.- Set up the bootable device through http://germanmedinavirtual.blogspot.com/2007/10/virtual-machines.html and check point 5 to specify source bootable path to locate iso file.

Check an example of installation through "YouTube Videos hosted by German Medina" at the right side of the screen with the titles : "Installing Ubuntu over VmWare - part1 and part2".

Virtual Machines

2007-09-19T15:47:00.000-05:00

Product : VmWare
Part involved : Server Console.
Summary : Software to create "Virtual Machine" in your Pc.
Scenario : An easy way to test operating systems and several applications over different plattforms using the only and the same hardware available.
Company : Owner.
Reference date : September 2007.

You can install several operating systems and working with all of them at the same time (Windows Xp, Vista, Linux, and so on) using the same computer to achieve with this goal. Follow next tips :

1.- Go to http://www.vmware.com/download/server/

2.- Fill your personal information to get a free serial number.
3.- Click on "Download Now" button, then download and install.
4.- Click on Edit/Preferences/Input and check the options "Grab keyboard and mouse input on mouse click", "Grab keyboard and mouse input on key press"
5.- To set up bootable device check "Edit virtual machine settings" and select CD-ROM and the source device of the boot process like as picture below :

The complete process of installation is available at the right side of the screen under title "Installing VmWare" on "YouTube Videos hosted by German Medina "

Auditing report of Minister of Transport and Communications of Peru (MTC)

2007-09-12T17:03:00.000-05:00

Product : Auditing report.
Part involved : Minister of Transport and Communications of Peru (MTC).
Summary : Through this report MTC tryes to explain to peruavian citizens what happened when mobile phone communications and land phone communications crashed on August 15, 2007.
Scenario : That date our country was shaken by 2 consecutive earthquakes of 7.5º on Richter scale and after that the communication was lost upto 6 hours in main city (Lima) and several days near to the epicenter (Chincha and Ica -200 Kms south of Lima-).
Company : Owner.
Reference date : September 2007.

Today MTC has published the auditing report in http://www.mtc.gob.pe/portal/Informe%20Nº%20009-2007-MTC-29.pdf to achieve with next goals :

- To decide on capacity of Public Commute Branch Exchange.
- To decide if the capacity of traffic management system and the size of telecommunication networking are enough to attend the requirements of telephone communications of the suscribers.
- In the case of mobile phone service, look at the level of working of cells.
- An additional actions to be necessary.

While OSIPTEL has published two documents in : (1) http://200.89.2.171/Index.ASP?T=T&P=GCC%2FNOTICIAS%5FPUBLICACIONES%2FNOTAS%5FPRENSA%2FFILES%2FNP+Resultados+de+Comision+de+Alto+Nivel%2Epdf (2) http://200.8.92.171/Index.ASP?T=T&P=GCC%2FEL%5FSECTOR%2FNORMAS%5FOSIPTEL%2FFILES%2Fres%5FPD%2F2007%2Fres1232007PDOSIPTEL%5Finforme%2Epdf about the same subject.

The auditing report of MTC shows a delimited sections of every mobile phone operator. Next parameters are defined as : IC-TINE (attempt not connected), TTLI (callings fallen) and summary of them :

Nextel (Mobile phone carrier operator)
Cpu (qty) = 1
Cpu % = 67
IC-TINE = 3
TLLI = > 2
Subscribers= 390,000
Traffic Channels= 4,604
Users/Channel= 84.70

MoviStar (Mobile phone carrier operator)
Cpu (qty) = 6 MGW
Cpu % = 70
IC-TINE = 4.03 (April), 6.41 (May), 3.48 (June), 4.54 (July)
TLLI = (No information)
Subscribers= 7,637,504
Traffic Channels= 141,492
Users/Channel= 53.98

Claro (Mobile phone carrier operator)
Cpu (qty) = (No information)
Cpu % = 72 and 98
IC-TINE = (No information)
TLLI = (No information)
Subscribers= 4,521,412
Traffic Channels= 138,203
Users/Channel= 32.72

Telefónica (Land Line carrier operator)
Cpu (qty) = 5
Cpu % = 60
IC-TINE = (No information)
TLLI = (No information)
Subscribers= 2,340,000
Traffic Channels= (no information)
Users/Channel= (no information)

Telmex (Land Line carrier operator)
Cpu (qty) = (no information)
Cpu % = 43
IC-TINE = (No information)
TLLI = (No information)
Subscribers= 28,530
Traffic Channels= (no information)
Users/Channel= (no information)

In Claro's case the auditing report suggests an acceptable value of "Users/Channel" (32.72), while at the same time does not confirm the rest values indicated under the reference (no information) and clears the responsabilities between MTC and OSIPTEL (Telecommunication Supervisor Body) such as next table :

Duties of MTC
Supervision of implementation networking (first 12 months)
Fill goals of the spectrum.
Fill goals of secret of communications.

Duties of OSIPTEL
Check quality and efficiency in public telcommunications services.
Check the goals and obligation to expand services.
Check to fulfilling the contract as carrier operator.

In the auditing report of OSIPTEL, we can find :
-IC-TINE and TLLI superpassed 3% in MoviStar, Claro and Nextel since previous months ago to earthquake.
- It founded 807,900 callings lost at peak hour (it is an abuse!)
- Most of calling cases are GoS are 1%.

I am going to suppose that :
(a) The quantity of traffic channels busy in Lima reachs up to 70,476 (assumed only 55% from the overall) multiply by 300 minutes, and every one minute had a cost average of S/.050, then the big business for MoviStar was for that event (after earthquake) the profit of S/. 10'571,400 ( US$ American Dolar 3,410,129.00).
(b) But I am going to give to MoviStar the benefit of the doubt according to the previous paragraph : only the half of the overall traffic channels made (dial) the call becuase the other half received the call, then the profit is US$ 1,705,064.00).
(c) There is no any rule and local law to establish the maximum ratio and relation to the parameter "Users/Channel", that is, if the carrier operator exceeds that parameter then this one should be forbidden to sell additional mobile phones. -You want to sell more mobile phones then first build the networking wireless to use-.
(d) The end user at the time of buying a new mobile phone should be noticed about the available traffic channels and another networking resources offered by carrier operator.
(e) The advertisment on news paper, tv and others medias to sell mobile phones should be included additionals indicators of quality of services and availability of networking services, that can be access too, by links of www.
(f) The auditing reports does not confirm an absence of call service and that means, that was a super plus of calling service?, and what happened with suscribers did not connect never at that time?. Both auditing reports confirm deficiency of planning networking telecommunications and degraded of call service but at this point the main reason of typing the auditing report was to confirm what suscribers were feeling at that day ?, is not explained what was the main reason calling services crashed on August 15.

Lost Internet

2007-09-06T10:56:00.000-05:00

Product : Linux.
Part involved : Squid.
Summary : Users can not access to internet.
Scenario : Troubleshooting internet service of end users .
Company : National Institute of Cancer Sickness of Peru (INEN).
Reference date : May 2005.

The main functionality of internet connection is based on "rcinetd" service running on Linux, then is possible to get up it swaping the states of that service, such as :

/etc/inetd.conf
rcinetd restart
cd /var/spool/mail
vdir
du -h
tail -f /var/log/mail
tail -f /var/log/httpd/access_log
tail -f /var/squid/logs/access.log
last more
vi /etc/passwd
bi /etc/shadow

And, after that, it persists a lost of internet service then try with ping command from your gateway to outside if there exists any other response, in negative answers check your connection with your ISP.

Checking Links of BTS

2007-08-31T10:44:00.000-05:00

Product : Motorola
Part involved : 9600.
Summary : To proceed to discard problems with link carrier then check spams.
Scenario : BTS is appearently oos.
Company : Motorola of Peru.
Reference date : June 1998.

Connect to BTS using ALMF :

Almf
c-Kermit
Login ILGIP :
You are already logged

disp param span
diap param edlc
/** Check values, these ones should be LVO=7 and Line Code=2 **/
Logout

Swap mmi cable to next GLI and repeat the procedure in all GLIs, after that check if the links are working with :

display emx link_status

WaveCom Q2426B

2007-08-27T16:25:00.000-05:00

Product : Wavecom.
Part involved : Q2426B.
Summary : Set up and configuration of wavecom card.
Scenario : Enable traffic channels of mobile phone call termination using wavecom card connect to PBX Alcatel.
Company : Minister of Health of Peru (MINSA).
Reference date : January 2007.

1.- Check cable DB9 to DB9 (pin to pin).
2.- Set up hyperterminal with next fields : 34800, N, 8, 1, N
3.-

Check as reference : http://germanmedinavirtual.blogspot.com/2007/08/calculate-traffic-channels-3.html

SU VG

2007-08-20T09:01:00.000-05:00

Product : Alcatel 4400.
Part involved : Card SU VG.
Summary : Handing flash card.
Scenario : Updating welcome message of PBX.
Company : Minister of Health of Peru (MINSA).
Reference date : August 2007.

First the audio should be saved into wav format file, after that, the file is copy to flash card memory. Every flash card memory of 4M size memory has 210 seconds of time recording and into every message of welcome should be inserted one second of mute previously to recording and three seconds of mute after recording then the total time of recording should be calculated based on: previous (mute)+message of welcome+after (mute).

Through mgr menu connected by mtcl user to PBX and to adjust configuration of message of welcome then select : Automated Attendant / Application; the flash card memory can be inserted into SU VG card in hot ( is not need to turn off PBX or pull off SU VG card), I have attached a You Tube video to confirm this procedure (check "DISA Message"at the right side under title "You Tube videos hosted by German Medina")

Calculate Traffic Channels (3)

2007-08-15T14:41:00.000-05:00

The output format log information with the fields : Day, Hour, Minute, Second, Tch (quantity of traffic channels busy at that time) has the bulk.

If we want to locate the time with the most rush hour then proceed to sort that log (descending) by Tch field, ordered by Hour, Minute, Second. These records will show the quantity of traffic channels busy and the time when happened that, for analysis purpose is convenient to work with a range of records (as result of descending sort) to find the top need of trunking ports size. At this point is important to highlight that if we want to study the traffic channels need of certain type of call service termination (land lines termination, mobile phones termination, or another type) the filter would be activated previously selecting the range of phone numbers to identify the type of call service associated with the issue of our analysis before to run VBA Access script.

In the case of mobile phone termination calling party, the trunking ports needed will be replaced by the same quantity of mobile phones cards attached to PBX, as I show at next picture :

Every card means one traffic channel (with mobile phone termination) connected through PBX, in this example there are two traffic channel busy; check at the top of the cabinet where the set of antennas have magnet base, every one are coneccted to their respective mobile phone card.

Here is the back side of the mobile phone card : One port DB9 is used to connect through serial port to pc by hyperterminal to configure the device and one RJ11 port to connect to MDF cabinet of PBX. The picture shown below belongs to wavecom Q2426B.

Calculate Traffic Channels (2)

2007-08-10T09:40:00.000-05:00

Product : Size of traffic channels needed into company.
Part involved : Implementation of practical use to calculate the quantity of traffic channels needed.
Summary : How much need to grow our infrastructure in land lines, mobile phone calls and another types of callings ?
Scenario : Developing IT plans will be based on the growth of the future company needs and that includes how to calculate the quantity of traffic channels .
Company : Minister of Health of Peru (MINSA).
Reference date : October 2006.

This stage is focused to discuss what action should be take after our detailed record call party information has been storage, remember that the call party log belongs to the input data -with the fields: Date, Time, from Extension, Number called, Call party time (secs) - of our "magic box" and after finished the append process the size of the log can be grow up to decide to save that log information into some Access table following the same order and priority of the fields described.

According to the filter -what type of calling wants to study, selecting the capacity of traffic or planning to implement some type of service call can be grouped by the series number of the number called, ensure one type of service call as input- activated is possible to reduced the response of time.

Next script (VBA Access) (1) opens one counter for every second into a entire month, (2) takes a record information and extracts the time of the begin of the calling party and the length of the calling party, after that creates a list of seconds to fill in (1), (3) repeats step 2 until reach EOF in table, (4) write into rs2 table all the counters >0 with the next format : Day (date), Hour (time), Minute (time), Second (time), TCH (quantity of traffic channels busy at that time). The different levels of code nesting are colored.

Dim rs As DAO.Recordset
Set db = CurrentDb()
Set rs = db.OpenRecordset("2006_Dic_Fijo") : Set rs2 = db.OpenRecordset("2006_Dic_Fijo_Tch")
Dim Tabla1(31, 24, 60, 60) As Integer
Dim ss As Integer: Dim mm As Integer: Dim hh As Integer: Dim dia As Integer
rs.MoveFirst

While Not rs.EOF
With rs
ss = Second(.Fields!Hora)
mm = Minute(.Fields!Hora)
hh = Hour(.Fields!Hora)
dia = Day(.Fields!Fecha)
Party = .Fields!Segundos
End With

For a = 1 To Party
Tabla1(dia, hh, mm, ss) = Tabla1(dia, hh, mm, ss) + 1

ss = ss + 1
If ss = 60 Then
ss = 0: mm = mm + 1
End If
If mm = 60 Then
mm = 0: hh = hh + 1
End If
If hh = 24 Then
hh = 0: dia = dia + 1
End If
If dia = 32 Then
dia = 1:
End If
Next a

rs.MoveNext
Wend

For Zap = 1 To 31
For Zep = 0 To 24
For Zip = 0 To 60
For Zop = 0 To 60
If Tabla1(Zap, Zep, Zip, Zop) > 0 Then
rs2.AddNew
With rs2
.Fields!dia = Zap
.Fields!Hora = Zep
.Fields!Minutos = Zip
.Fields!Segundos = Zop
.Fields!Canales = Tabla1(Zap, Zep, Zip, Zop)
End With
rs2.Update
End If
Next Zop
Next Zip
Next Zep
Next Zap

rs.Close: rs2.Close
MsgBox ("Fin de Ejecucion de Script")

Calculate Traffic Channels (1)

2007-08-03T18:14:00.000-05:00

Product : Size of traffic channels needed into company.
Part involved : Implementation of practical use to calculate the quantity of traffic channels needed.
Summary : How much need to grow our infrastructure in land lines, mobile phone calls and another types of callings ?
Scenario : Developing IT plans will be based on the growth of the future company needs and that includes how to calculate the quantity of traffic channels .
Company : Minister of Health of Peru (MINSA).
Reference date : October 2006.

The most type of PBX display reports with some profiles about detailed calling party processed into PBX, this information is the input that we need to generate into our own model of trunking size. Next lines is an example of this type of information :

2832 Ana M.León M OGP1 0609010125000:00:05 0.74 S 0' 4481949 N 0001001001001 40 0BA

When information is not formatted like than the upper lines then is necessary to start with preliminar delimited field information of every record in order to establish a standard input information with the purpose of create a main input call party file log, such as next lines :

"01/11/2006","00:01:00","2782","5519617",0 “ is the same to say
Date, Time, from Extension, Number called, Call party time (secs)

When the information is appended according to the last format is possible to filter the information with every field or the combination of these ones. Next script works under excel enviroment and can be executed to achieved this goal. Check that the differents levels of code nesting are separated with differents colors.

Ruta10:
FilaIn = 1: FilaOut = 1: condicion = True

While condicion = True
If ActiveSheet.Cells(FilaIn, 1).Value = "" Then

Taz = Taz + 1
End If
If Taz >= 1 Then condicion = False

Level1 = 0: Level2 = 0: Level3 = 0: Level4 = 0
ActiveSheet.Cells(FilaIn, 1).Select
CCadena = ActiveSheet.Cells(FilaIn, 1).Value
Ccadena1 = Left(CCadena, 2)
Ccadena2 = Left(ActiveSheet.Cells(FilaIn + 1, 1).Value, 2)

If Ccadena1 = " " Then
ActiveSheet.Cells(FilaIn, 9).Value = ""
Else
ActiveSheet.Cells(FilaIn, 9).Value = "NO"
End If

If Ccadena1 <> " " And Ccadena2 <> " " Then
Selection.EntireRow.Delete
Else
FilaIn = FilaIn + 1
End If

'
Wend

FilaIn = 1: condicion = True: Par = 0: Taz = 0
While condicion = True
If ActiveSheet.Cells(FilaIn, 1).Value = "" Then
Taz = Taz + 1
End If
If Taz >= 1 Then condicion = False

ActiveSheet.Cells(FilaIn, 1).Select
CCadena = ActiveSheet.Cells(FilaIn, 9).Value
If CCadena = "NO" And Par = 0 Then ActiveSheet.Cells(FilaIn, 10).Value = ""
If CCadena <> "NO" And Par = 0 Then ActiveSheet.Cells(FilaIn, 10).Value = "Error"
If CCadena = "" And Par = 1 Then ActiveSheet.Cells(FilaIn, 10).Value = ""
If CCadena <> "" And Par = 1 Then ActiveSheet.Cells(FilaIn, 10).Value = "Error"
If ActiveSheet.Cells(FilaIn, 10).Value = "Error" Then
Selection.EntireRow.Delete
Else
Par = Par + 1: FilaIn = FilaIn + 1
If Par = 2 Then Par = 0
End If
Wend

' Crear archivo de texto con las columnas Fecha, Hora, Anexo, NumeroLlamado, Segs
' en modo append
Ruta1:

FilaIn = 1: Techito = True: Taz = 0
Dim Fecha As Date: Dim Hora As Date
Dim cadena1 As String: Dim cadena2 As String
Dim numero As String: Dim Cadena As String: Dim anexo As String: Dim tmp As String
Dim saro As String: Dim smes As String: Dim sdia As String: Dim shh As String: Dim smm As String: Dim sss As String
Dim ss1 As String: Dim ss2 As String: Dim ss3 As String
Dim iaro As Integer: Dim imes As Integer: Dim idia As Integer: Dim ihh As Integer: Dim imm As Integer: Dim iss As Integer
Dim iss1 As Integer: Dim iss2 As Integer: Dim iss3 As Integer

While Techito = True
ActiveSheet.Cells(FilaIn, 1).Select
Estacion = Len(ActiveSheet.Cells(FilaIn, 1).Value)
If Estacion = 0 Then
Taz = Taz + 1
End If
If Taz >= 1 Then Techito = False

Level1 = 0: Level2 = 0: Level3 = 0: Level4 = 0

Cadena = ActiveSheet.Cells(FilaIn, 1).Value
Largo = Len(Cadena)

For a = 1 To Largo
If Mid(Cadena, a, 1) = "" Then Level1 = Level1 + 1: Level2 = 0
If Mid(Cadena, a, 1) = " " Then Level2 = Level2 + 1

If Level1 = 1 And Level2 = 0 Then anexo = anexo + Mid(Cadena, a + 1, 1)
If Level1 = 4 And Level2 = 0 Then
If Level3 >= 1 And Level3 <= 2 Then saro = saro + Mid(Cadena, a, 1)

If Level3 >= 3 And Level3 <= 4 Then smes = smes + Mid(Cadena, a, 1)

If Level3 >= 5 And Level3 <= 6 Then sdia = sdia + Mid(Cadena, a, 1)

If Level3 >= 7 And Level3 <= 8 Then shh = shh + Mid(Cadena, a, 1)

If Level3 >= 9 And Level3 <= 10 Then smm = smm + Mid(Cadena, a, 1) Level3 = Level3 + 1 End If

If Level1 = 5 And Level2 = 0 Then

If Level4 >= 1 And Level4 <= 3 Then ss1 = ss1 + Mid(Cadena, a, 1)

If Level4 >= 5 And Level4 <= 6 Then ss2 = ss2 + Mid(Cadena, a, 1)

If Level4 >= 8 And Level4 <= 9 Then ss3 = ss3 + Mid(Cadena, a, 1) Level4 = Level4 + 1

If Level4 = 10 Then a = Largo

End If

Next a

FilaIn = FilaIn + 1: Level1 = 0: Level2 = 0: Level3 = 0: Level4 = 0 ActiveSheet.Cells(FilaIn, 1).Select Cadena = ActiveSheet.Cells(FilaIn, 1).Value Largo = Len(Cadena)

For a = 1 To Largo

If Mid(Cadena, a, 1) = "" Then Level1 = Level1 + 1: Level2 = 0 If Mid(Cadena, a, 1) = " " Then Level2 = Level2 + 1 If Level1 = 2 And Level2 = 0 Then numero = numero + Mid(Cadena, a + 1, 1) If Level2 >= 1 And Level1 = 2 Then a = Largo
Next a

tmp = "": If Left(numero, 1) = "1" Then numero = Mid(numero, 2, Len(numero))
For b = 1 To Len(numero)
If Mid(numero, b, 1) = " " Then
Else
tmp = tmp + Mid(numero, b, 1)
End If
Next b: numero = tmp: tmp = ""

For b = 1 To Len(anexo)
If Mid(anexo, b, 1) = " " Then
Else
tmp = tmp + Mid(anexo, b, 1)
End If
Next b: anexo = tmp: tmp = ""

segs = 0
iaro = Val(saro): imes = Val(smes): idia = Val(sdia)
ihh = Val(shh): imm = Val(smm): iss = Val(sss)
iss1 = Val(ss1): iss2 = Val(ss2): iss3 = Val(ss3)
Fecha = DateSerial(iaro, imes, idia): cadena1 = Fecha
Hora = TimeSerial(ihh, imm, iss): cadena2 = Hora

If iss1 = 0 Then
Else
segs = segs + (3600 * iss1)
End If
If iss2 = 0 Then
Else
segs = segs + (60 * iss2)
End If
If iss3 = 0 Then
Else
segs = segs + iss3
End If

Open "C:\Temo\1.txt" For Append As #1
Write #1, cadena1, cadena2, anexo, numero, segs: Close 1

FilaIn = FilaIn + 1: Level1 = 0: Level2 = 0: Level3 = 0: Level4 = 0
saro = "": smes = "": sdia = "": ss1 = "": ss2 = "": ss3 = "": shh = "": smm = "": sss = ""
iaro = 0: imes = 0: idia = 0: ihh = 0: imm = 0: iss = 0: anexo = "": numero = "": tmp = ""
Wend
MsgBox ("Fin de Ejecución del Programa")

Designing VLAN

2007-07-23T10:27:00.000-05:00

Product : 802.1Q

Part Involved : VLAN

Summary: An example to show how to design VLAN's segments into LAN enviroment

Scenario : Considerations of previous stage before of implementation proyect.

Company : dLink Training Peru Center.

Reference Date : July 2007.

Check the following implementation of VLAN features, taking as first step the next example of hardware available :

SW1

VLAN1 : 1-6

VLAN2: 7-12

VLAN3: 13-18

PServer: 19

Link : 20

SW2

VLAN1: 1-10

VLAN2: 11-20

Server1: 21

Server2: 22

Link : 23

- VLAN1 does not print.

- VLAN2 does not connect to Server1 (S1).

- Overall have access to Server2 (S2).

It is necessary to find the intersection of elements as I shown below :

After that, I proceed with the script of implementation of VLAN, such as :

What do you seem the method ?

Automation sending email

2007-07-20T21:49:00.000-05:00

Product : Microsoft Office Suite.
Part Involved : Excel
Summary: Monitoring process involved to send notifications in the same moment that the event has been detected..
Scenario : After the event has been triggered using VBA programming code enviroment is used to send a warn message by email to chief supervisor.
Company : Ministry of Health of Peru (MINSA).
Reference Date : March 2007.

Develop programming code VBA brings a intesting integration tool because the entire Office Suite (Access, Excel, Word, Power Point, OutLook itself) can be connected to the programmed VBA code developed and use as instance every resource available into Office as input data for our programming code to fire the event desired (in this case -send an email-). The exception is : only works up to office 2000, after that Microsoft inserted into office suite a security issue where it forbids a third party vendor use this plattaform as base to launch emails. The same restriction is applied when the interchange information between every office suite is used. But there is another type of executable file that handle client email functions that I will take in additionally topic. Next example works nice but up to Office 2000

Dim Uno As Object
Set Uno = CreateObject("Outlook.application")
Set Dos = Uno.GetNameSpace("MAPI")
Set Tres = Uno.CreateItem(0)
Tres.To = "germanmedinavirtual@gmail.com"
Tres.Subject = "Summary " + Str(hoy)
Tres.Body = Message
Tres.Send

Set Uno = Nothing: Set Dos = Nothing: Set Tres = Nothing:

GSM 850 MHZ with noise ?

2007-07-16T11:29:00.000-05:00

Product : Quality of call Service.
Part Involved : GSM 850 MHz
Summary: The quality of mobile call party has been degraded.
Scenario : Mobile call party has a lot of noise inside of main building of MINSA (HQ).
Company : Ministry of Health of Peru (MINSA).
Reference Date : April 2007.

I contacted with Telefonica of Peru (Mobile Carrier Operator) because my co-workers were sure that the source of the problem become from the mobile phone itself but I did not think the same -I have another track with my RF experience-, a few weeks ago I came with personnel of Telefonica on the roof of the main building office of the minister of health (MINSA) -5th floor- (on below picture painted with light blue) and the RSSI readings were from 90 and 85 while at the same time we tried to locate viewline from cellsite to here and we founded : Garzon, Milan, Beatriz. (upper picture is Milan Cell Site).

Additionally the list of traffic channels captured from here shown that noise and interference added to call party become from neighbor Cell Site traffic channels - That is following through engineer mode of mobile phone, please check http://germanmedinavirtual.blogspot.com/2007/06/engineer-mode-in-mobile-phone.html -: that is to resolve that It is necessary to reassign the group of traffic channels belonged to the set of cell sites involved into area described. This goal enhanced powerful -procedure called into mobile technology world as performance- the quality of the call party (according to the frecuency plan of the city of the carrier operator) and now the RSSI reading from 4th floor (inside the building) reached from 65 to 77, in another words is a nice calling. The traffic channels taken basically from here belongs to Cell site "Lawn Tenis" sector 3 painted with line red above of the light blue block on the map.

Opening a new GSM mobile phone shop center

2007-07-14T16:59:00.000-05:00

Product : New Shop center has opened.
Part involved : Assistance to the entire sets of mobile phone of Telefonica of Peru (GSM 850Mhz).
Summary : A new point of Technical support opening for GSM mobile phones.
Scenario : The user of the mobile phone services need to discard problems from the same equipment and following the best quality of the call service.
Company : Chaquinet Telecomunicaciones SRL.
Reference date : Julio 2007.

My friend Freddy Fabian has opened a new point of sales and technical support for GSM mobile phone while at the same time is an authorized agent of the mobile carrier operator Telefonica of Peru on north of Lima city. I was invited by him during the opening party and from here I want to congratulate him for this important step into the business world.

I have attached a video previous to the opening party and my friend told me that later he will send me the information about the software used to execute drives test and the process to load that one into mobile phones (from here (GSM) to now the mobile phone is activated through engineer mode by software) and additionally tips that we need to use in order to improve using of mobile phone and detecting types of common failures found into differents brands of mobile phone, taking this way I will publish too the top ranking of this type of mobile phone race.

Wireless DWL-900AP+ Configuration

2007-07-10T16:55:00.000-05:00

Product : dLink.

Part Involved : DWL-900AP+

Summary : Wireless Bridge Configuration.

Scenario : Taking considerations to install equipment and tuning configuration

Company : Ministry of Health of Peru (MINSA).

Reference Date : September 2006.

Related to the equipment is neccesary to set up SSID (public name of a wireless network), channel (number of channel to broadcast signal) at this point is recomended do not use a channel close to a channel busy as preference as well you should use a channel more far from the channel busy in order to avoid interference and noise signal in your link.

Authentication "Shared Key" enabled next steps : (1) Client sends authentication request to DWL-900AP+, (2) DWL-900AP+ sends challenge text, (3) Client encriypts challenge text and sends it back to DWL-900AP+, (4) AP DWL-900AP+ and if correct, autheticates client, (5) Clients connect to network.

And enabled the option WEP Encriptation=128K consists of 13 characters typed by user and 3 characters by default equipment.

The combination with a 24 dBi antenna -previous location of the source and target place through readings of GPS to calculate azimuth and tilt (I will explain in details in next topics)-. After that he equipment works nice.

Connection to database Oracle 10G

2007-07-06T17:50:00.000-05:00

Product : Oracle 10G.
Part Involved : Log in
Summary : Can not log in to database.
Scenario : Your connection to database is refused, the problem become from LAN issues ?
Company : National Institute of Cancer sickness of Peru (INEN).
Reference Date : June 2006.

This subject involved to know additional knowledge from Oracle plattform in order to discard suppose Oracle problems and focused on LAN issues.

1.- The client computer has a file called tnsnames.ora saving the profile of the strings of connections of every database available into networking infrastructure configured.

2.- Next lines belongs to a sample of tnsnames.ora file
#tnsnames.ora Network Configuration File:
D:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

ORCL=
(DESCRIPTION=
(ADDRESS=(PROTOCOL=TCP)(HOST=707-03)(PORT=1521)
(CONNECT_DATA=
(SERVER=DEDICATED)
(SERVICE_NAME= sw1)
)
)

BD=
(DESCRIPTION=
(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.16.100)(PORT=1521)
(CONNECT_DATA=
(SERVER=DEDICATED)
(SERVICE_NAME= sw1)
)
)

EXTPROC_CONNECTION_DATA=
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1))
)
(CONNECT_DATA=
(SID=PLSExtProc)
(PRESENTATION= RO)
)
)

3.- SERVICE_NAME is the name of the Oracle instance while ORCL and BD are the strings of connections to database, then from DOS windows execute next command directed to the strings of connection :
C:\> tnsping bd
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 06-JUL-2007 17:51:29
Copyright (c) 1997,2005, Oracle. All rights reserved.
Archivos de parametros utilizados:
D:\Oracle\product\10.2.0\db_1\network\admin\sqlnet.ora

Adaptador TNSNAMES utilizado para resolver el alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.16.100)(PORT = 1521)(CONNECT_DATA = (SERVER=DEDICATED) (SERVICE_NAME = sw1)))
Realizado correctamente (10 mseg)

C:\>
This is a example that connection from your computer and database is working.

4.- Now try with next command :
C:\> ping 192.168.16.100

5.- If you have answer from ping command and not from tnsping command then the Oracle listener is down. Later I will take this issue.

POP3 connectivity

2007-07-02T15:46:00.000-05:00

Product : POP3.
Part Involved : Port 110
Summary : Checking if POP3 functions is working with configuration of email service.
Scenario : Sometimes email does not arrive to our inbox while client insist you to say : I have sent you.
Company : National Institute of Cancer sickness of Peru (INEN).
Reference Date : April 2003.

Sometimes is not enough to set up configuration of user mailbox, POP3 and SMTP into outlook user profile account such as http://germanmedinavirtual.blogspot.com/2007/04/migrating-pst-2003-2007-to-previous.html when trying to recover email is not working because there is some type of lost connection -seemingly- , after that additionally it needs to test if mailbox account is working and you can achive when log in to email server account and execute POP3 commands and rule out bad connections of LAN issues from probably email server services problems. Next lines are a true example (with real email server and user account) that you can follow to troubleshoot your connection with email server using POP3 commands.

C:\> telnet inen6.inen.sld.pe 110
+OK POP3 inen6.inen.sld.pe 2004.89 server ready
user prueba1
+OK User name accepted, password please
pass prueba1
+OK Mailbox open, 20 messages
list
+OK Mailbox scan listing follows
1 15955
2 36492
3 31637
4 14385
5 1340
6 1441
7 1444
8 1444
9 1444
10 1444
11 1443
12 1443
13 1443
14 1443
15 1443
16 1443
17 1443
18 1444
19 11596
20 1443
stat
+OK 20 131610

Reach to here means connectivity from your pc to email server account is ok, list command shows the quantity of email saved temporaly into email server -identify by ID- waiting to download in the next connection and stat command shows the summary of the previous command. To close connection proceed :

quit
+OK Sayonara

Se ha perdido la conexión con el host
C:\>

Timer 102 and Timer 160 into Alcatel 4400

2007-06-27T22:55:00.000-05:00

Product : Alcatel 4400.
Part Involved : Timer 260 and Timer 102.
Summary : Troubleshooting and adjust the values of timers.
Scenario : Add information related to how to set up these sets of timers
Company : National Institute of Cancer sickness of Peru (INEN).
Reference Date : April 2003.

Connect to PBX through telnet command by user mtcl, then proceed to follow next sequence : mgr / Translator / External Numbering Scheme / Numbering Descriptor / go down hierarchy / Consult Modify overview object

Timer 260 set up the maximum time of calling party and its relation scale vs value are 600 = 1 minute. This value will affect to overall outgoing call party restricted by "Telephone Facility category Id" from PBX.
Timer 102 set up a threshold time between when the calling party starts and the message of welcome starts. In this case 100 = 10 seconds. Taking as reference that values then the welcome message will be listen 10 seconds after started the calling party.

UpLink Rf's samples

2007-06-25T22:08:00.000-05:00

Product : Motorola.
Part Involved : 9600 Frame.
Summary : Set up a procedure to collecting measures of RF on UpLink.
Scenario : Define the lobule of coverage of the Cell Site upLink
Company : Motorola of Peru
Reference Date : January 1998.

At the Cell site connect to 9600 frame through LMF by LAN port with the next steps :
Login ALMF
ALMF> disp tch 2 config /** Verify frecuency and sector -sets of antennas-
ALMF>keyup tch 2

Outside of the Cell site, proceed with engineer mode with the mobile phone configuring the traffic channel :
*11----* /** Frecuency in four digits
This step force to the mobile phone to track only in that traffic channel, then after this confirm to team in Cell site to proceed to open log file of RSSI values into cell site.

ALMF>start emd log file=/usr/emd/logs/test1.dat
ALMF>monitor tch 2 rssi on
ALMF>monitor tch 2 rssi off
ALMF>Force tch 2 oos
ALMF>LmfCtrl xcvr 2
ALMF>keyup xcvr 2

Slow/fail connections dLink DI-624

2007-06-22T14:41:00.000-05:00

Product : Wireless Access Point dLink.
Part Involved : DI-624 or DI-624+.
Summary : Recomendation to set up configuration of Access Point.
Scenario : Sometimes the device does not respond or is very slowly
Company : National Institute of Cancer sickness of Peru (INEN).
Reference Date : June 2006.

First the equipment was bought to supply the need of LAN data ports of structured cabling then it was very attractive the idea to replace that set of LAN data ports with wireless connections. One of the LAN data port of the equipment is connected to the floor distribution of the structured cabling while the SSID and additional parameters were set up, upto here there is no problems; I added a log trace of the activities did by the Access Point dLink DI-624 when is working connected to some type of LAN structure with 600 computers. Take as reference that the next log was collected some saturday afternoon -very low traffic data-

.16:14:23.506164 00:a0:f8:ae:9b:44 (oui Unknown) > 01:a0:f8:f0:f0:02 (oui Unknown), ethertype Unknown (0x8781), length 237:
0x0000: 002d 0000 00d7 0000 0007 0007 0000 0001 .-..............
0x0010: c0a8 47d4 0000 0000 0000 0001 0000 0e02 ..G.............
0x0020: 0300 0000 0000 0000 4e45 4f50 4c41 5349 ........NEOPLASI
0x0030: 4341 5300 0000 0000 0000 0000 0000 0000 CAS.............
0x0040: 0000 0000 0000 0000 0000 0000 000c 3033 ..............03
0x0050: 2e37 .7
16:14:23.883708 IP COMPUTO003.137 > 192.168.71.255.137: UDP, length 50
16:14:24.226375 arp who-has COMPUTO003 tell NETWORKING01
16:14:24.226530 arp reply COMPUTO003 is-at 00:05:5d:6b:11:5b (oui Unknown)
16:14:24.226536 IP NETWORKING01.137 > COMPUTO003.137: UDP, length 50
16:14:24.226752 IP COMPUTO003.137 > NETWORKING01.137: UDP, length 229
16:14:24.307070 arp who-has 192.168.71.136 tell FILESERVER
16:14:24.633673 IP COMPUTO003.137 > 192.168.71.255.137: UDP, length 50
16:14:25.239559 arp who-has 192.168.71.136 tell NETWORKING01
16:14:25.533321 IP 192.168.0.12.1900 > 239.255.255.250.1900: UDP, length 253
16:14:25.533488 IP 192.168.0.12.1900 > 239.255.255.250.1900: UDP, length 253
16:14:25.533597 IP 192.168.0.12.1900 > 239.255.255.250.1900: UDP, length 271
16:14:25.533773 IP 192.168.0.12.1900 > 239.255.255.250.1900: UDP, length 271
......
.....
.....
16:14:31.015531 IP 192.168.0.11.1900 > 239.255.255.250.1900: UDP, length 317
16:14:31.020414 IP 192.168.0.11.1900 > 239.255.255.250.1900: UDP, length 245
16:14:31.024321 IP 192.168.0.11.1900 > 239.255.255.250.1900: UDP, length 319
16:14:31.036038 IP 192.168.0.11.1900 > 239.255.255.250.1900: UDP, length 289
16:14:31.043850 IP 192.168.0.11.1900 > 239.255.255.250.1900: UDP, length 313
16:14:31.547790 IP LOGIS04.138 > 192.168.71.255.138: UDP, length 201
16:14:34.447520 IP PISO701X.137 > 192.168.71.255.137: UDP, length 50
16:14:34.458966 arp who-has 192.168.71.137 tell FILESERVER
16:14:38.743974 IP NETWORKING01.137 > FILESERVER.137: UDP, length 50
16:14:38.750300 IP NETWORKING01.137 > 239.255.255.250.137: UDP, length 50

And after review log information I found the confirmation of the ip assigned to Access Point (192.168.0.11) and comparing between 16:14:25.533321 and 16:14:31.043850 (6 seconds) there are 4,298 request executed by Access point through port 1900 to access internet causing a excessive broadcast into LAN, forcing to the rest of devices connected to LAN to wait pass this 6 seconds, this cycle -set of request petitions through port 1900-is repeating constantly and I identify that this process slows the conecction of all the devices into LAN. The default values of this type of equipment considers enable this feature then proceed with the next window to disabled that option and in consequence enhanced the speed of the connections into LAN when you are using this type of equipment. UPNP functionality is associated with por 1900.

Microphone does not work in WebCam DLV-B33

2007-06-13T22:04:00.000-05:00

Product : WebCam DeLux.
Part Involved : DLV-B33.
Summary : Troubleshooting configuration of new device into my computer.
Scenario : I have detected microphone -incorporated in web Cam- is not working.
Company : Private computer.
Reference Date : June 2007.

In a few words I will describe only the steps necessary to fulfill with the installation of this device :

1.- Install the mini DVD video software WebCam and select the choice "302" after finish this process it will appear a message to reset computer.
2.- During reset process plug the usb webcam. (only plug from now)
3.- Then proceed to update this driver, after that restart computer system again.
4.- Start/Programs/Vmicro USB Pc Camera (ZC0302)/AMPCAP
5.- Click menu Capture and review if the item "Capture Audio" can not be selected then you should proceed to uninstall the software web cam, restart computer again and start from the step 1 again.
6.- Enable audio option clicking on "Capture Audio".
7.- Testing capture images with audio click on menu "file/set capture file" to specify location of file and to begin with capture click on menu "Capture/Start Capture; later review if the file contains audio with video.

Set up ip in 3Com

2007-06-05T17:46:00.000-05:00

Product : Switch 3Com.
Part Involved : 4500.
Summary : Procedure to set up ip -first time- on switching equipment .
Scenario : Remote management of switching equipment.
Company : National Institute of Cancer illness of Peru (INEN).
Reference Date : June 2006.

Follow the next tips :

1.- Connect cable between 3Com switching equipment (RJ45 port) and computer (com1 port). -the cable becomes with switching equipment-.
2.- On computer enable hyperterminal with the next features : 19200, 8, N, 1, hardware.
3.- With hyperterminal window type (ENTER) and type user "admin".
4.- <4500> type: system-view (ENTER)
5.- [4500] type: interface vlan 1 (ENTER)
6.- [4500-Vlan-interface1] type: ip address 192.68.x.y 255.255.255.0
7.- Press (CTRL+Z) and prompt swap to:
8.- <4500> type: save (ENTER)
9.- The configuration will be written to the device.
Are you sure?[Y/N]; type Y(ENTER)
10.- Please input the file name(*.cfg)[flash:/3comoscfg.cfg]:; type (ENTER)
11.- Check the next messages
Now saving current configuration to the device.
Saving configuration. Please wait
.......
Configuration is saved to flash memory successfully.
Unit1 save configuration flash:/3comoscfg.cfg successfully
12.- Turn off switch and verify through ping command or internet browser that the ip has been saved successfully.

Next, I have attached a log of 3Com switching equipment when the equipment is restarted.

Username:admin
Password:
<4500>%Apr 1 23:57:04:651 2000 4500 SHELL/5/LOGIN:- 1 - admin(aux0) in unit1 login
System View: return to User View with Ctrl+Z.
[4500]interface vlan 1
[4500-Vlan-interface1]ip address 192.168.88.156 252.255.255.0 Error: Invalid IP address or subnet mask!
[4500-Vlan-interface1]save ^ % Unrecognized command found at '^' position.
[4500-Vlan-interface1]
The configuration will be written to the device. Are you sure?[Y/N] Y
Please input the file name(*.cfg)[flash:/3comoscfg.cfg]:
Now saving current configuration to the device.
Saving configuration. Please wait...
....
Configuration is saved to flash memory successfully.
Unit1 save configuration flash:/3comoscfg.cfg successfully
<4500>%Apr 1 23:59:34:201 2000 4500 CFM/3/CFM_LOG:- 1 -Unit1 save configuration successfully.
<4500>#Apr 2 00:01:18:849 2000 4500 L2INF/2/PORT LINK STATUS CHANGE:- 1 - Trap 1.3.6.1.6.3.1.1.5.4: portIndex is 4227690, ifAdminStatus is 1, ifOperStatus is 1
#Apr 2 00:01:19:49 2000 4500 IFNET/5/TRAP:- 1 -1.3.6.1.6.3.1.1.5.4Interface 31 is Up %Apr 2 00:01:19:149 2000 4500 L2INF/5/PORT LINK STATUS CHANGE:- 1 - Ethernet1/0/9: is UP
%Apr 2 00:01:19:265 2000 4500 L2INF/5/VLANIF LINK STATUS CHANGE:- 1 - Vlan-interface1: is UP
%Apr 2 00:01:19:382 2000 4500 IFNET/5/UPDOWN:- 1 -Line protocol on the interface Vlan-interface1 is UP
%Apr 2 00:01:19:499 2000 4500 STP/2/SPEED:- 1 -Ethernet1/0/9's speed changed!%Apr 2 00:01:19:599 2000 4500 STP/2/PFWD:- 1 -Ethernet1/0/9 is forwarding!
Starting......

******************************************************************
* *
* SuperStack 3 Switch 4500 26-Port BOOTROM, Version 1.00 *
* *
******************************************************************
Copyright 2003-2005 3Com Corporation. All Rights Reserved.
Creation date : Sep 13 2005, 11:36:29
CPU type : BCM4704
CPU Clock Speed : 200MHz
BUS Clock Speed : 33MHz
Memory Size : 64MB
Mac Address : 0016e00ff700

Press Ctrl-B to enter Boot Menu... 1
Auto-booting...
Decompress image....................................................OK!
Starting at 0x80100000...

User interface aux0 is available.

Press ENTER to get started.
Login authentication
Username:%

Engineer mode in mobile phone

2007-06-01T09:10:00.000-05:00

Product : Motorola AMPS Mobile Phone.
Part Involved : Engineer mode or testing mode.
Summary : Enable engineer mode or testing mode into mobile phone.
Scenario : Troubleshooting traffic channels of Cell sites .
Company : Motorola of Perú.
Reference Date : Nov 1997.

With the purpose to check if every sector -set of antennas-is throwing the right traffic channnel by the right place, the mobile phone is enabled into programming mode to trace through the display of the mobile phone if matched the traffic channel information. This method is used to test HandOff states and check RSSI values

After that, type #55#. It's going to appear on display of mobile phone every field only once at time -rows in the lines below-.To advance to next field press *. After the last field (16) to save and quit press 01# then the mobile phone wil be reset.

1 32511
2 10101100
3 511 96628500
4 10
5 02
6 10
7 000000
8 123
9 004
10 11000100
11 00000000
12 0333
13 0333
14 0334
15 021
16 10100011

Parameter 1 is SID and is the local identification of the carrier operator in that city and 15 indicates the quantity of SIG (signal channel) to scan during idle mode, while 3 is the world number of the mobile phone. The rest of the parameters will be taken with frecuency plan issue.

RadioOperators Guideline

2007-05-25T09:28:00.000-05:00

Product : VHF & HF Infrastructure
Part Involved : Handing equipments
Summary : Training of use radio equipment.
Scenario : Meeting of institutions cares prevention of disasters.
Company : National Institute of Emergency Squad (INDECI).
Reference Date : May 2007

Mela Hotel joined all the institutions to training in prevention tasks face to face with disaster and assistance routines to fulfill during disasters events, and the telecommunication offices from these institutions were summoned to shared their experiences in that type of situations and cases. And there was a demostration to show and simulate extreme situations with the invited people of the meeting. The meeting was scheduled inside of the frame of activities programmed by ops (Pan American Health Organization) and fortify the links between these institutions.

Public Bidding Nº 11-2006-MINSA

2007-05-23T19:04:00.001-05:00

Product : Public Bidding Nº 11-2006-MINSA
Part Involved : Nomination of the winner of public bidding
Summary : Today was scheduled at 3:00pm with notary, candidates suppliers and members of the commitee
Scenario : Project of implementation of new equipment communications to LAN MINSA main building office.
Company : Minister of Health of Perú (MINSA).
Reference Date : May 2007

Through legal proceeding the president of committe announced the replace of the notary Dr. Donato Carpio by Dr. Freddy Cruzado -because the first one can not become based on external circumstances-, and after that continue reading the Technical resolutions including the scores of every supplier; previously was read the causes why every suppplier do not reached the highest score. Then at the end of the lecturer this was the table of the score :

e-Business Distribution 97 points

GMD& Red Lider 95 points

Telefonica of Peru 90 points

Grupo MasterCom 83 points

Error to downloads e-mails

2007-05-21T17:37:00.000-05:00

Product : Microsoft
Part involved : OutLook.
Summary : e-mails does not download successfully.
Scenario : POP3 server is outside of LAN
Company : Ministry of Health of Perú (MINSA).
Reference date : May 2007

First discard and ensure that the link with your ISP is solid and stable. This article only proceeds after you have checked your connection with outside. When the time out of the POP3 server is too long there is another chance to customize this parameter from the overview point of the client -do not modify anything in server configuration.-and it can reach changing the value of the parameter POP3TimeOut.

Load "regedit" and locate folder : Mi Pc\HKEY_CURRENT_USER\Software\Microsoft\Office\OutLook\OMI Account manager\Accounts\0000 and modify parameter POP3TimeOUT.

I am sure that if you have this type of problem the value of your POP3TimeOut is minimum -such as 10 or 20-updating with 90, the threshold of the window is resized to catch in.

LAN wireless

2007-05-16T16:33:00.000-05:00

Product : Week of Engineer Electronic and Telecommunications.
Part involved : Network wireless by dLink.
Summary : Reinforce through wireless knowledge.
Scenario : Anniversary.
Company : Engineers Association of Perú (CIP).
Reference date : May 2007.

I saw most interesting this topic and the presentation was given by Carlos Cervantes -carloscg@vlc-peru.com Regional Training Manager of dLink- and the news become with the introduction of Dlink firewall to the peruvian market, the introduction of new standard super G, and the facility to control the Hand Off process called -roaming- managed by control wireless dLink. Here you will find a review of the available frecuency and where our solution can fit in.

In my humble opinion the organization of the event had several deficiency, first the scheduled did not start on time, and the presentation of the topics was related to put emphasis in advertisement of the product and not in developing technology, about the knowledges taken it did not surprised me because I knew about them, that was becuase I was waiting with a lot of expectation.

Take as reference, this type of meeting needs labs to testing technology and simulate situations -propose a implementation of solution and a set of installations as an example-, without this we are going to fall into the retoric speech of the politicians.

Saving the meeting I have attached at the end of the web page the procedure to crack wep of wireless network teached into this conference.

XCVRs of 9600 Frame

2007-05-14T12:09:00.000-05:00

Product : Motorola.
Part involved : 9600 Frame.
Summary : Distribution of XCVR cards into 9600 Motorola cabinet.
Scenario : The analog cell site coverage area (AMPS , NAMPS) used this hardware to manage the outgoing and incoming calls.
Company : Motorola of Perú.
Reference date : December 1997.

The cards inserted from slots 1 to 72 are called XCVR (transceiver) and depends of the location -slot- where the XCVR will be inserted will define what type of funtion will be assigned to XCVR working into Motorola cabinet, then the type of XVR are : TCH (trafiic channel), SIG (signalization channel) and SCAN. The range of slots : 2-9, 13-21, 25-36, 38-48, 50-72 are assigned to TCH; 10-12, 22-24 are SIG; 1, 37, 49 are SCAN.

FORDWARD is the link established from the antenna of the Cell site to the mobile phone and REVERSE is the link established from the mobile phone to the antenna of the cell site. The origination of the call party is established on Reverse

SIG 10 : Carry out REVERSE of sector 3.
SIG 11 : Carry out REVERSE of sector 2.
SIG 12 : Carry out REVERSE of sector 1 and FORDWARD of all the Cell Site.
SIG 22 : Redundant of SIG 10.
SIG 23 : Redundant of SIG 11.
SIG 24 : Redundant of SIG 12.

The SCAN measures the power received from the mobile phone –as part of the process involved into REVERSE- then it is taking measure and samples of Handoff process (request HOMR – Handoff Measurement Request), then the current cell site asks to the SCANS of the neighborhood cell sites to compare how do they received the signal of that calling party –tiny, strong signal- and looking if the readings of the signal is inside of the values permited if this condition is fullfilled then the neighborhood cell site takes the control of the calling party and accepted the rest of rotuing connections established in the current call party.

Collecting RF samples

2007-05-11T16:05:00.000-05:00

Product : LCC INC.
Part involved : RSAT.
Summary : Configuration and programming software and hardware.
Scenario : First is necessary to have the frecuency plan and the drive test plan suggested with the purpose of identify the list of traffic channels to use into the execution of the test
Company : Motorola of Perú.
Reference date : March 1998.

The computer is connected from com2 port to RSAT
Through DOS windows in the next locations type : C:\Collect> Edit setup
////////////////////////
COM 2
PHONE 1 703-555-1212 MASK 11111111 11111111 11100000 00000000
PHONE 2 703-555-1213
RCVR 1 CLT 1 TRIG TIME
RCVR 1 CLT 1 TRIG TIME
AUDIO 1 MODE 1 CMSG 1 AVG 0 TONE 1 FILTER 1 INTERVAL 5 PHONE 1
AUDIO 2 MODE 1 CMSG 1 AVG 0 TONE 1 FILTER 1 INTERVAL 5 PHONE 2
AUDIO 3 MODE 4 CMSG 0 RSIG 3 AVG 7 FILTER 1 GSIG 0
INTERVAL 2 PHONE 2
CCT LIMA
GRP
SRC CALL
AUTODIAL CDMA
NAVIGATION 2 TP GPS
CORRECT TP Y GPS
MARKER 1
DAT
ENGLISH
////////////////////////

According to how many receivers cards are installed into RSAT equipment the lines PHONE and AUDIO are configured; in this case we are using 1 receiver card. The "CLT" keyword indicates the name of the control file is going to use. Then proceed to update the file setup with ALT_S and ALT_X. The next step is to edit the control file (1.clt) with the command C:\Collect> edit 1.clt

/////
1
321
////

The first line means how many traffic channels are going to scan and from the next lines is indicated what traffic channels will be scan; and takes the same way to save and exit ALT_S and ALT_X the 1.clt file.

- From the prompt location of DOS windows type : C:\Collect> Collect setup
- Appears the message box "checking connections"
- appears the message box "diagnostic in progress"

- Shows the components connected to RSAT -"Qualcom mobile phone","Antenna Amps 2000","Antenna GPS"- and the user confirm with ENTER, then started to established the speed of transmission between RSAT and computer and the measurement setup option is activated by user, and after SCRIPT FILE is selected, space bar and NONE options as well. With the arrows -up, down- selected DATA FILE NAME and writes the name of the file will be saved all the information collected by RSAT, the computer adds to file the extension dat meanwhile user pressed ENTER and COLLECT options, the software confirm with the warn message "Starting comments or press any key to continue", the software starts the measure of the signal with the options: "F1" key scans the channels and "F6" displays in graphic format; ESC is used to exit execution of software.

After a large list of test, then RSSI_RSAT= RSSI_mobile_Phone+ 10 dBm

Opening Technical File of supplier

2007-05-07T21:34:00.000-05:00

Product : Public Bidding 011-2006-MINSA
Part involved : Confirming obligatory of Technical requirements of every supplier.
Summary : Today was scheduled the event-receive the technical file from suppplier and open the technical file- as part of the bidding process.
Scenario : Project of implementation of new equipment of communications of LAN MINSA.
Company : Minister of Health of Perú(MINSA).
Reference date : May 2007.

Through a legal proceeding in MINSA at 15:00pm , it received and opened the technical propose file of every supplier -e-business, Mastercom, GMD&Read Leader, Telefónica of Perú- to confirm fullfill next requirements as the first step of qualification of the public bidding:

- Summary of documents.
- Proof of electronic registration of national record of suppliers.
- Affidavit of fullfill with the minimum technical specifications.
- Affidavit of delivery due date, implementation and guarantee.
- Affidavit of product presentation.
- Affidavit of personnel experience assigned to implementation plan.
- Affidavit of list of equipment to use into implementation plan.
- Affidavit of implementation plan.
- Affidavit of post sales services.
- Affidavit of company information.
- Affidavit of consent of Article 76.
- Affidavit of integrity agreement.
- Letter of the factory to support that supplier is a local agent representative with more than 3 years of experience.
- Letters of the factory and supplier where ensure that equipments offered are compatible with standards of LAN protocols communications.
- Catalogs, manual of users, booklets given by factory.
The stage of evaluation will continue, and the announced of winner supplier will be presented on May 23 at 3:00pm.

IN the top picture is the comitte -left to right-, Spring Tello, German Medina -me- and Rebeca Garcia and notary Dr. Donato Carpio. In the second picture are the legal representative of Telefónica of Perú and Mastercom company. In the upper picture at the left is Dra Rosario Mendoza from internal control. In the below picture notary is confirming the truthfulness of the documents presented by suppliers.

Hackers and Linux

2007-04-28T18:52:00.000-05:00

Product : LINUX.
Part involved : http://peru.flisol.net/pages/sedes/lima/lima-2.php
Summary : Meeting of experts and beginners users.
Scenario : Third Latin America Festival of Open Source in Perú - FLISOL.
Company : San Martin de Porres University - USMP
Reference date : April 2007

I have partipated as invited into the festival (watcher), and really was very interested but I was very interested in the next topics : Clusters & Control users Tool.

Clusters

- More capacity of calculation and storage.
- Get high available.
- Tuning load balance.

It works in parallel processing and distributed, sharing computers interconected as a one working group. Open Mosix (1 computer -load balance- can shared between 3 applications servers).

Clusters HPC (High Performance Computing)
Cluster Beowolf
The design can add every quantity of computers additionally interconected.

- Comodity Hardware -conecction into private work-
- Linux
- Linux tool.

Cluster FIA

- Scientific Linux v 3.07
- OSCAR -Building cluster tool-
- MpiCh2 -messages steps libraries-

OSCAR is installed into main node, generates image of every remote node -from node1 to nodeN - and proceed to start up the system. The benchmark based on mpi is an algorithm that executes the matrix process, sharing the load of clusters, reaching results of gigaflow. A list of aditional information is attached,

www.scientificlinux.org
www.oscar.openclustergroup.org
www.linux-ha.org
www.openmosix.sourceforge.net Load of balance
www.ultramokey.org
www.beowulf.org Building Clusters
www.globus.org

Control users Tool

SQUID : Proxy most famous of internet. Log squid information /var/log/squid/access.log and SQUID is in /ect/squid.
SARG : Generates report. Graphic format is Http:/ServerName/sarg

bandWidth Reports : www.sarg.sourceforge.net

Directing packets information into network is based on : (a) creation of Access List, (b) Creation of Rules, -that executes to fullfill point (a)-; proceed to config adding new lines through command : vi squid.conf

#acl mired src 127.0.0.1/255.225.255.255
#http_access allow mired
#http_access deny all

acl sistemas src 145.130.0.0/255.255.0.0
acl messenger url_regex -l gateway.dll
acl time_msn time M T WHF 16:40-22:00
acl musica urlpath_regex -i \.mp3$
acl musica urlpath_regex -i \.exe$
acl hotmail url_regex -i "etc/squid/hotmail"

Access List is not going to work up to the rule were indicated to work on. First are declared "deny" and later "allow" statements.

http_access allow hotmail
http_access allow web
http_access deny internet !aceptados !time_msn

squid -k reconfigure
cbq.init

wmp does not show image

2007-04-27T21:53:00.000-05:00

Product : Windows Media Player.
Part involved : Apply all versions.
Summary : Wants to play video.
Scenario : Only listen the video but you can not watch it.
Company : My Computer.
Reference date : April 2007

Very easy to troubleshoot :

1.- Go http://download.divx.com/divx/DivXInstaller.exe

2.- (Save and execute) or (open directly and executed)

That's all

BTS 9600 oos

2007-04-24T22:44:00.000-05:00

Product : Motorola BTS 9600.

Part involved : Analog Cell Site.

Summary : Procedure to get up bts after a blackout.

Scenario : BTS does not respond load process from MTSO.

Company : Cellular infrastructure Telefónica of Perú, Contractor Motorola of Peru.

Reference date : March 2000

Connect lmf to LAN connection into BTS

ONLINE GLI 1

Download GLI 1 file=/gli.emd

online gli 1

force gli 1 ins

online gli 2-6

crossload gli 2-6 source=1

crossload gli 5,6 source=1

force gli 2-6 ins

online xcvr 1-64

display tch 1-64

display gli 1-6 sfm mnt

download scn 1 file=/xcvr.cmd

download sig 10 file=/xcvr.cmd

download tch 2 file=/xcvr.cmd

crossload sig 11-64 source=10

crossload scn 2-64 source=1

crossload tch 3-64 source=2

force gli 2-6 oos

force gli 1 oos

Theorem Lopez

2007-04-19T20:06:00.000-05:00

Product : Structured cabling.
Part involved : category 5 and category 5e.
Summary : The pipe is full without space to tending another utp cabling. It needs to dig into wall.
Scenario : The new data port will be installed at some office, but this office has 4 data port working and they need to install one more.
Company : Institute of cancer illness - INEN.
Reference date : January 2004

My co-worker Erick Lopez gave me the guideline to resolve the trouble, that is the reason that i called "Theorem Lopez"; he considered to reassign the wired functions into utp cable to reach with solution. Be very carefull because I tested with success but solution is out of the standard EIA 568A and EIA 568B and works but up to 10Mbps, no more. Up to this time I did not see any like that we suggested next :

1.- In category 5 and category 5e wired 4,5,7,8 are not used, only if the jack connector works as data port.

2.- Into one utp cabling we are going to carry two computer data signal.

3.- The first computer is assigned to wired 1,2,3,6

4.- The second computer will be assigned to wired 4,5,7,8

5.- At the patch panel side and the face plate side (computer) we need to install two RJ45 Plug at every side of the cable. Then the cable will start with two RJ45 plug and the same cable will end with two RJ45 plug, that is in both sides.

/**Working on one side of the cable, after that repeat the same procedure in the other side.**/

6.- The first RJ45 plug should be conectorized following the order of wired (1,2,3,6) while the rest of wired (4,5,7,8) they would be go empty into RJ45 pin position.

7.- The second RJ45 should follow the next positions : wired 4 into position1, wired 5 into position 2, wired 7 into position 3, wired 8 into position 6. Position means the number of pin into RJ45 plug.

8.- At telecomunication room, put one patch cord for every extension of RJ45 plug to establish connection through port switch

9.- At work area extend every RJ45 plug through patch cord connection to computer.

Considered it as temporary solution while you are looking to migrate or implement your solution according to the international standards of structured cabling.

Please, feel free to send your comments

Migrating pst 2003-2007 to previous version

2007-04-18T21:15:00.000-05:00

Product : Office
Part Involved : OutLook
Summary: Sometimes, I found some end users need to read file email information formatted in Outlook 2003 or 2007 into Outlook 2000
Scenario: Reinstallation of systems into computer and testing other software tool that works with office 2000. The end user prefers to use/change to another version because apperently it looks like more flexible to user
Company: Institute of Cancer illnes - INEN
Reference Date: June 2006
From Office 2003-2007
1.- File/New/file of personal folder (*.pst)
2.- select the option file of personal forlder (*.pst) Outlook97-2002 and enter
3.-Confirm path (device -hard disk letter/folders and name of pst file)

Up to here it created a pst file formatted into 97 version, this file is empty and is going to work as container of information.Next step is export the information (version 2003-2007) directe to pst file described into previous lines. 1.- File/Export/export to file/file of personal folder (*.pst)/select folder to export and check include subfolders/save the export file into the pst file described at the first lines.

card BPRA2 - Alcatel 4400

2007-04-15T10:26:00.000-05:00

Product : Alcatel 4400.

Part involved : card BPRA2.

Summary card : It manages E1 functions into PBX through card named BPRA2, some suppliers and carrier operators call it as "primary".

Scenario : Tuning card with link carrier operator of Telefónica del Perú, calling party drops with seemingly no reason.

Company : Ministry of Health of Perú.

Reference date : October 2006.

The card can be pull out from PBX cabinet in hot with no problems, of course with no calls. If your PBX has several cards of this type check that configuration are the same in all of them.

The balance parameter has two jumpers.

The impedance (impedancia in picture) parameter has three jumpers.

Every jumper has three pins, the counting pin is from the upper to lower side of picture.

Impedance jumper, pin 1 and 2 = 120 ohms

Impedance jumper, pin 2 and 3 = 75 ohms

Balance jumper, pin 1 and 2 = with balance

Balance jumper, pin 2 and 3 = without balance

Carrier operator Telefónica of Perú in E1 link uses "75 ohms with balance"

Connect to PBX through mtcl user and check the results typing the next command :

trkstat -r 0 (trunk number)

Review the parameter LOS, a successfull work shows the value 0 and that means a solid link established.