Connect Pbx and Data Network Through 2811

Unanswered Question
Apr 16th, 2009

Hi,

I'm new in Cisco. I have 2811 router with VWIC-1MFT-E1 and I want to connect 2 different network to it (data & voice).

eg.

Data&Voice----->2811---->E1----->2811---->Data&Voice

my question is :

At first I'm connect the VWIC-1MFT-E1 to Pbx. The system is working fine. But when I'm connect the 10/100 Fast Ethernet ports to Data network, the Pbx start going intermittent. Can you help me how to solve this ? Is my config is wrong ?

tq

I have this problem too.
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farozezan73 Thu, 04/16/2009 - 20:47

According to my Pbx vendor, there's nothing wrong with clock. Because the pbx is working fine. For ref. pls find the attached config.

Attachment: 
farozezan73 Fri, 04/17/2009 - 21:02

the config :

Current configuration : 3544 bytes

!

version 12.4

service timestamps debug datetim

service timestamps log datetime msec

no service password-encryption

!

hostname ROUTER_BKE-TP

!

boot-start-marker

boot-end-marker

!

enable password pr0p3l

!

no aaa new-model

network-clock-participate wic 2

!

!

ip cef

!

!

no ip domain lookup

isdn switch-type primary-qsig

!

voice-card 0

no dspfarm

!

!

voice call carrier capacity active

!

voice service voip

signaling forward rawmsg

sip

!

!

voice class codec 1

codec preference 2 g711ulaw

!

!

!

!

archive

log config

hidekeys

!

!

controller E1 0/2/0

pri-group timeslot

!

!

!

interface Loopback0

ip address 10.192.1.28 255.255.255.255

!

interface FastEthernet0/0

description Connect to PBX

ip address 172.16.4.2 255.255.255.0

shutdown

duplex auto

speed auto

!

interface FastEthernet0/1

description Connect to CAT3750E BKE

ip address 10.192.33.9 255.255.255.252

duplex auto

speed auto

!

interface Serial0/1/0

description Connect To TM Leased Line

bandwidth 2048

ip address 10.192.33.6 255.255.255.252

ip tcp header-compression i

auto qos voip

service-policy output AutoQoS-Policy-UnTrust

ip rtp header-compression iphc-format

ip rsvp bandwidth 1024 1024

!

!

router eigrp 101

network 10.0.0.0

network 192.0.0.0

network 200.1.2.0

no auto-summary

!

ip forward-protocol nd

!

!

ip http server

no ip http secure-server

!

!

!

!

control-plane

!

!

dial-peer voice 1 voip

description ROUTER_BKE-TP to ROUTER_BRT-RCC

destination-pattern ....

signaling forward rawmsg

session protocol sipv2

session target ipv4:10.192.1.29

req-qos guaranteed-delay

codec g711ulaw

!

dial-peer voice 2015 pots

description ROUTER_BKE-TP to PBX_BKE-TP

destination-pattern ....

direct-inward-dial

port 0/2/0:15

forward-digits all

!

gateway

timer receive-rtp 1200

!

sip-ua

reason-header override

!

!

!

line con 0

password cisco

login

line aux 0

line vty 0 4

password cisco

login

!

exception data-corruption buffer truncate

scheduler allocate 20000 1000

!

end

farozezan73 Tue, 04/21/2009 - 03:02

I've done the config but still can't. Do I need to config both router ? And is my previous config is correct ?

farozezan73 Wed, 04/22/2009 - 06:22

PBX---2811---E1 Leased Line---2811---PBX

*both 2811 router connected to CAT3750E for Data Network

ROUTER_BKE-TP#sh ver

Cisco IOS Software, 2800 Software (C2800NM-ENTSERVICESK9-M), Version 12.4(19b),

RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2008 by Cisco Systems, Inc.

Compiled Fri 13-Jun-08 04:12 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

ROUTER_BKE-TP uptime is 11 weeks, 1 day, 2 hours, 16 minutes

System returned to ROM by power-on

System image file is "flash:c2800nm-entservicesk9-mz.124-19b.bin"

Cisco 2811 (revision 53.51) with 249856K/12288K bytes of memory.

Processor board ID FHK1242F1JU

2 FastEthernet interfaces

13 Serial interfaces

1 Serial(sync/async) interface

1 Channelized E1/PRI port

4 Voice FXO interfaces

DRAM configuration is 64 bits wide with parity enabled.

239K bytes of non-volatile configuration memory.

62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

sh run :

!

!

controller E1 0/2/0

pri-group timeslot

clock source internal

!

!

interface Loopback0

ip address 10.192.1.28 255.255.255.255

!

!

interface FastEthernet0/1

description Connect to CAT3750E BKE

ip address 10.192.33.9 255.255.255.252

duplex auto

speed auto

!

interface Serial0/1/0

description Connect To TM Leased Line

bandwidth 2048

ip address 10.192.33.6 255.255.255.252

ip tcp header-compression i

auto qos voip

service-policy output AutoQoS-Policy-UnTrust

ip rtp header-compression iphc-format

ip rsvp bandwidth 1024 1024

!

interface Serial0/2/0:15

no ip address

encapsulation hdlc

no logging event link-status

isdn switch-type primary-qsig

isdn overlap-receiving

isdn incoming-voice voice

isdn send-alerting

isdn bchan-number-order ascending

isdn sending-complete

isdn outgoing display-ie

no cdp enable

!

router eigrp 101

network 10.0.0.0

network 192.0.0.0

network 200.1.2.0

no auto-summary

!

ip forward-protocol nd

!

!

ip http server

no ip http secure-server

!

!

!

!

dial-peer voice 1 voip

description ROUTER_BKE-TP to ROUTER_BRT-RCC

destination-pattern ....

signaling forward rawmsg

session protocol sipv2

session target ipv4:10.192.1.29

req-qos guaranteed-delay

codec g711ulaw

!

dial-peer voice 2015 pots

description ROUTER_BKE-TP to PBX_BKE-TP

destination-pattern ....

direct-inward-dial

port 0/2/0:15

forward-digits all

!

gateway

timer receive-rtp 1200

!

sip-ua

reason-header override

!

!

Paolo Bevilacqua Wed, 04/22/2009 - 10:34

You cannot have the same destination-pattern .... for both pots and voip DP. Configure them correctly accordingly to the numbers in use.

You also need to configure incoming called-number for both DPs.

farozezan73 Thu, 04/23/2009 - 17:51

Configured already but still can't. My config :

dial-peer voice 2 voip

description ROUTER_BKE-TP to ROUTER_BRT-RCC

destination-pattern 16..

dial-peer voice 2015 pots

description ROUTER_BKE-TP to PBX_BKE-TP

destination-pattern 10..

Sorry, but is it because of the pri-group timeslots below ? It should be 32 ts right ?

controller E1 0/2/0

clock source internal

pri-group timeslots 1-12,16

tq

farozezan73 Fri, 04/24/2009 - 18:11

According to the pbx vendor the destination pattern should be :

destination pattern ....

as the pbx will forward the number to router.

Paolo Bevilacqua Sat, 04/25/2009 - 01:15

Let the PBX vendor care about the PBX only,

You need a proper configuation of the routers or nothing will work. I recommend you hire a reputable partner for that.

farozezan Wed, 04/29/2009 - 06:43

But when I try to enter the

command "pri-group timeslots 1-31" under the E1 controller I

get this error:

% Not enough DSP resources available to configure pri-group on controller E1 0/0/0

% The remaining dsp resources are enough for 0 time slots.

% For current codec complexity, 2 extra dsp(s) are required to create this voice port.

Is it true that's why my network is intermittent.

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