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Vinesh1234
80 pts.
 redundancy between two mpls link
Cisco Certified Network Professional, Cisco networks, MPLS, Network Configuration
We have two different mpls link from two different service provider.one primary link and one back up link. routing protocol are using EIGRP and BGP between them.we want  to configure  redundancy between two link , if one link goes down , second link automatic take route.

please suggest me how to configure routing.



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ASKED: October 24, 2009  10:21 PM
UPDATED: May 22, 2011  4:57 AM
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Answer Wiki:
Network Diagram ------primary router--------mpls cloud LAN ----- swicth(3750 -----secondy router--------mpls cloud both router connected with single switch Actual answer depends on how many rotuers do you have? Do you have one router per MPLS link and who manages the router(s). If one router terminates both MPLS links and you manage routers on both ends, I'd run BGP on both sides with BGO attributes for path selection. ========================== It seems , you are running the BGP with the service Service Provider (PE) routers and anounced the network, right ? . If it is so , them if any of the link goes down , it will automatically take the alternet path ( As per BGP attribute )
Last Wiki Answer Submitted:  May 22, 2011  4:57 am  by  pkpatel1151   430 pts.
All Answer Wiki Contributors:  pkpatel1151   430 pts. , Vinesh1234   80 pts.
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Hi,

MPLS just we need to enable , that’s it, there is no priamry & back up config for this…
But we can configure BGP for that… Configure peerring using loobback and set multi-hop also..put 2 static route for looback ip towards both links… this is the config for load sharing as well as acting primary & backup… If you are using 2 routers for load sharing , you need to configure maimum path config…

I hope this wil be useful for u…

Regards,
STALIN P

NetworkCS
 10 pts.
 

You can manipulate BGP attributes and choose the Primary and seconday link.sss

AjayRaj
 55 pts.