ISDN connectivity

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Feb 25th, 2009
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We have a new ISDN router Cisco 3845 connecting to Cisco 7600 Leased line router.We would like to use ISDN as backup.I have attached the network diagram.


1.Referring to diagram, what is the best way to configure interface A&B and C&D.Is it better to create an L3 port-channel or do we create the bridge group between A&B and C&D ?

2.How the routing will take place when the Leased line will go down if we use bridging between 3845 & 7600?


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paolo bevilacqua Wed, 02/25/2009 - 13:30
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No, you never use bridging for backup.

Configuring backupo correctly can be tricky and require professionality.

Recommend you hire a certified/experienced person for the job.


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