ISDN backup

Unanswered Question
Aug 7th, 2007
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Hi,

I have 5 brnaches require to connect to HO router via ISDN when primary link goes down in any of the branch routers. I need to configure all available (4) BRI ports in HO router to connect from branch ISDN router to any of the BRIs ports in HO router.


I have attached HO router and one of branch routers ISDN backup configuration. This network is live at present. So unfortunately I don?t have any risk to do trail error. Appreciate any one can advise me required configurations or have a look on my attached configuration.


Regards,


Pemasiri.


Note:

OSPF has been used as a routing protocol and dialer watch is used to watch to primary link down.




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umedryk Mon, 08/13/2007 - 11:27
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I think when a primary link is down in the Multiprotocol Label Switching (MPLS) core network, the ISDN Backup in MPLS Core feature allows a backup ISDN link on a dialer interface to be brought up to restore network connectivity.


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