Cisco Systems Help with 2821 - VWIC-2MFT-T1 Card - initial config
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Help with 2821 - VWIC-2MFT-T1 Card - initial config troute_kilgore 09-10-07
Posted by on September 10, 2007, 11:48 am
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Gang, I'm the new owner of a Cisco 2821 with 4 VWIC-2MFT-T1 Cards.
I'm going to multilink 8 T1 lines until our vendor can get a DS3 in
place (we are rural).

All of these will be data. I don't completely understand how to
configure the Controller Cards to get serial interfaces.


My current config looks like:
For the first controller card, I used channel-group 1 timeslots 1-24.
They gave me an int s0/0/0:1 My big question I guess, is with the
channel group command. Will I put ALL 4 of my VWIC-2MFT-T1 cards in
channel 1 or should each physical card have its own channel?

!
controller T1 0/0/0
framing esf
fdl ansi
linecode b8zs
channel-group 1 timeslots 1-24
!
controller T1 0/0/1
framing esf
linecode b8zs
!
controller T1 0/1/0
framing esf
linecode b8zs
!
controller T1 0/1/1
framing esf
linecode b8zs
!
controller T1 0/2/0
framing esf
linecode b8zs
!
controller T1 0/2/1
framing esf
linecode b8zs
!
controller T1 0/3/0
framing esf
linecode b8zs
!
controller T1 0/3/1
framing esf
linecode b8zs
!
!
!
interface Multilink1
description Bundled 8 T1 lines
ip address X.X.X.X 255.255.255.252
ppp multilink
ppp multilink group 1
!
interface GigabitEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$
ip address 10.10.10.1 255.255.255.248
duplex auto
speed auto


Posted by Doug McIntyre on September 10, 2007, 1:08 pm
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troute_kilgore@yahoo.com writes:
>Gang, I'm the new owner of a Cisco 2821 with 4 VWIC-2MFT-T1 Cards.
>I'm going to multilink 8 T1 lines until our vendor can get a DS3 in
>place (we are rural).

>All of these will be data. I don't completely understand how to
>configure the Controller Cards to get serial interfaces.

You are just missing one bit, tying the serial links into the MPPP bundle.

>My current config looks like:
>For the first controller card, I used channel-group 1 timeslots 1-24.
>They gave me an int s0/0/0:1 My big question I guess, is with the
>channel group command. Will I put ALL 4 of my VWIC-2MFT-T1 cards in
>channel 1 or should each physical card have its own channel?

NB: channel-group 1 is uniq to each controller. So, you aren't saying
these are all part of the same channel group, you are saying that the
1st channel group on controller T1 0/0/0 is comprised of timeslots 1-24.
etc. etc.

Last step..

interface Serial 0/0/0:0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Serial 0/0/1:0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Serial 0/1/0:0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Serial 0/1/1:0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Serial 0/2/0:0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Serial 0/2/1:0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Serial 0/3/0:0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Serial 0/3/1:0
encapsulation ppp
ppp multilink
ppp multilink group 1


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