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Reconfiguring Cisco 2651XM Router

We currently have a Cisco 2651XM router. It has a dual port VWIC-2MFT-T1 card in slot W1 and a single port WIC-1DSU-T1 in slot W0. The dual port card is currently creating the connections to offices #2 and #3. The single port card is responsible for the connection to office #1. We are adding a 4th office and I need to replace the single port card with another dual port VWIC-2MFT-T1 card. Can someone give me an idea of the configuration that will be necessary as all the serial interface numbers will change when I have 2 dual-port cards in the mix?? These are all strictly data T-1s (no voice). Thanks guys!!

!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname Router
!
!
ip subnet-zero
!
!
!
!
!
controller T1 0/1
 framing esf
 linecode b8zs
 channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/2
 framing esf
 linecode b8zs
 channel-group 0 timeslots 1-24 speed 64
!
!
!
interface Loopback1
 ip address 10.1.1.1 255.255.255.255
!
interface FastEthernet0/0
 ip address 10.7.13.1 255.255.248.0
 duplex auto
 speed auto
!
interface Serial0/0
 description Link to Office 1
 ip address 10.7.128.14 255.255.255.252
 encapsulation ppp
 service-module t1 clock source internal
 service-module t1 timeslots 1-24
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/1:0
 description Link to Office 2
 ip address 10.7.128.9 255.255.255.252
 encapsulation ppp
!
interface Serial0/2:0
 description Link to Office 3
 ip address 192.168.110.1 255.255.255.252
 encapsulation ppp
!
router ospf 2
 router-id 10.1.1.1
 log-adjacency-changes
 network 10.7.8.0 0.0.7.255 area 0
 network 10.7.128.8 0.0.0.3 area 0
 network 10.7.128.12 0.0.0.3 area 0
 network 192.168.110.0 0.0.0.3 area 0
!
router ospf 12
 log-adjacency-changes
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.7.13.6
ip http server
!
!
line con 0
line aux 0
line vty 0 4
 password *******
 login
!
!
end

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Pugglewuggle

Basically just backup your old config and when you insert the new card those old commands that no longer apply should automatically disappear. Then just re-enter the commands for the one that is currently serving office #1. And then enter the new commands for office #4. Since it is the same module as the other 2 port one you are using, I would suggest making sure that the commands for the 1 port card look the same as the commands for the 2 port card.
That should do it! Let me know if you have any questions!

Les Moore

You'll have to configure the channel groups on the new controller interfaces before you will ge tthe new serial ports to configure with IP addresses.
Then serial 0/0 will go away, to be replaced by serial 1/0:0 and 1/1:0

Pugglewuggle

Like I said. :-) Just basicaly copy the commands.

wjester

ASKER

I guess what confuses me is that the duplex card is in slot #1. Shouldn't that make the controller commands reference 1/1 and 1/2?? When I add the new duplex card into slot #0, should it be 0/1 and 0/2??

Les Moore

Odd... I would expect it to be controller 1/0 and 1/1
Cisco has been consistent over the years in their interface numbering.
Slot 0 = 0/0 and 0/1 = Serial 0/0 = WIC in slot 0
Slot 1 = 1/0 and 1/1 = I would expect serial 1/0:0 and 1/1:0

If you replace the single port WIC with a new dual port VWIC, you'll have to re-check all the interface numbering for the controllers..

Pugglewuggle

Yes, the slots are referred to as 0 and 1 and so are the cards... The naming goes slot/card:port
With most Cisco stuff he numbers start at 0

wjester

ASKER

when reconfiguring the single port card as a double-port card, how will I change the existing settings:

encapsulation ppp
service-module t1 clock source internal
service-module t1 timeslots 1-24

so that they will work with the new dual port card?? How do I determine what the framing and linecode are??

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Pugglewuggle

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Pugglewuggle

They will have the same linecode. All a linecode is is a value for the type of line attached. It varies between a few values for T1/E1 and others. In your case, just use the existing b8zs if you're connecting an identical T1 line.
Cheers!