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Single multihomed BGP failover (Active/Passive)

hmc2500
Level 1
Level 1

Hi, how can I make a single multihomed BGP internet connection to 2 ISP's fail over active/passive? I'm thinking about using weight (want to manage this on my router) to have traffic go out one prefferred ISP but that's not really Active/Passive. Some routes may still go out through the backup ISP. Any ideas how to accomplish this and should I be worried about asymetric traffic in this scenario. Thanks.

15 Replies 15

The problem was I configured the prepend route-map with the AS of the neighboring router rather then it's own local AS.

route-map prepend permit 10
set as-path prepend 309021

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