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Adding a second T1 after adding a new VWIC2-2MFT-T1/E1

Posted on 2011-09-29
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Last Modified: 2012-05-12
I have an existing Cisco 1841 with one existing VWIC-1MFT-T1 active with a single T1 as follows.

controller T1 0/0/0
 channel-group 0 timeslots 1-24
!
interface FastEthernet0/0
 ip address X.X.X.X 255.255.255.0
 speed 100
 full-duplex
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0:0
 ip address X.X.X.X 255.255.255.252
 no cdp enable
!
**********************************************
Now I have order a second T1 so I added a VWIC2-2MFT-T1/E1 to the router and enabled/configure by telling the router what Card Type it is. The 2 serial ports on the new card now show in the "show ip int brief"

My questions is: I have to telnet into the router via the existing T1 serial interface to prepare for the second T1. How do I get the Existing T1 on serial0/0/0 into my new Multilink1 interface with the new one without losing my connection to the router?
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Question by:toddbaileyusa
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Soulja earned 500 total points
ID: 36816655
If you are trying to do this remotely I wouldn't advise it. Definitely want to configure it locally because at some point the ip address will have to be removed from the serial you are connected on. Once this happens you will be kicked out.
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by:toddbaileyusa
ID: 36816873
Is it possiable to configure everything and assign the IP that is on the first VWIC to the Second VWIC and then have someone at the remote site move the T1 cable from the existing VWIC to the new VWIC and regain access? or will it even let me give the same IP that is already being use? evern if it is for a few minutes?
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Expert Comment

by:Soulja
ID: 36816924
It won't let you do that. You will be putting to ip address on the multilink interface, not the second serial. That is when you will be kicked out, because you have to remove the ip address from the serial in order to put it on the multilink interface.
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by:toddbaileyusa
ID: 36817018
I guess its a good thing I configured it last year with a modem, its just a pain to ask a non-tech person in that office to connect it and then plug it into the analog fax line.
I was just hoping there was some processes I was over looking.
Thanks for you advice.
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by:Soulja
ID: 36817034
No problem.
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