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Cisco Router 2611xm

Posted on 2003-11-06
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Last Modified: 2011-09-20

I am looking to purchase a Cisco 2611xm router and have some questions about functionality.

I have 2 offices that will be connected with a privite t1 circuit.  A 2611 router will be on each end.

On one side we would like to use an existing ISDN line as a backup for this connection.

Does the 2611xm support this type of scenario out of the box?  Or Would I need to purchase an additional WIC or other add on to complete this kind of setup?

Would the router be able to be configured to aoutomatically roll over the the ISDN line of the private circuit fails?

Thanks for the assistance.
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Question by:jimm123
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by:JFrederick29
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No it doesn't out of the box.  You would need to purchase an ISDN WIC for the router.

The following would work...

http://www.cisco.com/en/US/products/hw/routers/ps259/products_data_sheet09186a0080091b87.html

Yes the router would be able to be configured to failover to the ISDN line if your primary circuit failed.
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lrmoore earned 40 total points
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You also need T1 WIC cards to terminate the T1's
WIC-1DSU-T1

Else, if you have external CSU/DSU, you will need a serial port WIC
WIC-1T
and a v.35 DTE cable.

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by:sheahmed
sheahmed earned 40 total points
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u will need ...

- WIC-1DSU-T1, or
- WIC-1T

and yes there is a way to automaticlly switch on your ISDN ... this is called dial on demand ...

. just configure secondary route, (i.e. backup route with some Administrative Distance) ...

. mention the back-up interface on primary interface ...
interface Ethernet1/0
 backup delay 0 15
 backup interface bri0
 ip address 191.109.1.1 255.255.255.252
 half-duplex        

. mention the interesting traffic, on which ISDN should dial out ...

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