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Replies

Having trouble adding a serial interface

mike85719
Level 1
Level 1

I'm trying to setup up a new 2851 with a VWIC2-2MFT (in slot 0/0). Port 0/0/0 will be used for the PRI and 0/0/1 for a data circuit.

I was able to add the PRI serial interface and configure the T1 controller but I can not add the serial interface for the data T1. It acts like 0/0/1 is not there. I need to add something like this:

interface Serial0/0/1

description T1 to HQ

bandwidth 1544

ip address 10.10.10.10 255.255.255.252

Here is my config. What am I doing wrong?

****show run****

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname Router

!

boot-start-marker

boot-end-marker

!

card type t1 0 0

logging buffered 51200 warnings

!

network-clock-participate wic 0

!

ip subnet-zero

!

ip cef

no ip dhcp use vrf connected

!

isdn switch-type primary-ni

!

voice-card 0

dspfarm

!

voice call carrier capacity active

!

controller T1 0/0/0

framing esf

linecode b8zs

pri-group timeslots 1-24 service mgcp

!

controller T1 0/0/1

framing esf

linecode b8zs

!

interface Loopback1

ip address 10.10.10.10 255.255.255.0

no ip redirects

no ip mroute-cache

!

interface Port-channel3

no ip address

hold-queue 300 in

!

interface Serial0/0/0:23

no ip address

no logging event link-status

isdn switch-type primary-ni

isdn incoming-voice voice

isdn bind-l3 ccm-manager

no cdp enable

!

***show version***

Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(3g), RELEASE SOFTWARE (fc2)

***show hardware***

Cisco 2851 (revision 53.51) with 196608K/65536K bytes of memory.

Processor board ID FTX110

2 Gigabit Ethernet interfaces

24 Serial interfaces

2 Channelized T1/PRI ports

1 Virtual Private Network (VPN) Module

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)

***show diag****

Slot 0:

C2851 Motherboard with 2GE and integrated VPN Port adapter, 2 ports

PVDM Slot 0:

48-channel (G.711) Voice/Fax PVDMII DSP SIMM PVDM daughter card

WIC Slot 0:

VWIC2-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1

Hardware Revision : 0.0

Top Assy. Part Number : 800-22629-05

Board Revision : A0

Deviation Number : 0

Fab Version : 04

RMA Test History : 00

Product (FRU) Number : VWIC2-2MFT-T1/E1

Version Identifier : V01

WIC Slot 1:

2nd generation - FXO Voice daughter card (4 port)

Hardware Revision : 5.0

Top Assy. Part Number : 800-21589-02

Board Revision : A0

Deviation Number : 0-0

Fab Version : 04

3 Replies 3

Try adding 'channel-group 1 timeslots 1-24 speed 64' under controller T1 0/0/1.

HTH

Sundar

Thanks! Another quick question...

So now I can add a sub interface such as: "interface serial 0/0/1:1" but why can't I add the serial interface as just "interface serial 0/0/1"?

Is adding a sub interface a requirement on this router, with this configeration?

That's not a sub-interface. The :1 is the group # that's associated with the channel group command. This group # is unique to that controller. Since you have only one group all your configuration would reside on s0/0/1:1.

HTH

Sundar

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