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Dual BGP neighbors with route-maps

jon_panes24
Level 1
Level 1

Hi,

Here in our company we have a router that is connected to 2 eBGP peers, lets say that the first peer is 1.1.1.1 and the other is 2.2.2.2. Currently, we are receiving and using a default route to 1.1.1.1, this make the 2.2.2.2 not utilized. So what we did is create a route-map that sets the ip next-hop to 2.2.2.2

 

example:

access-list 1 standard pernit 200.200.200.200

route-map BROWSE permit 10

match ip address 1

set ip next-hop 2.2.2.2

 

I wonder what happens when the 2.2.2.2 ISP goes down, will it failover to ISP1? If not is there a way of doing this type of setup with failover without using IP SLA?

 

Thanks.

2 Accepted Solutions

Accepted Solutions

If ip address 2.2.2.2 known to your router as connected network than you don’t have to configure SLA. If 2.2.2.2 goes down, connected route will be withdrawn from routing table and route-map will not sent packets to it.

But if 2.2.2.2 isn’t directly connected, than you have to configure sla operation to track it reachability and use verify-reachability keyword in route-map.

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