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EIGRP load balancing & traffic failover for perticular subnet

gavin han
Level 1
Level 1

Hi,

Untitled1.jpg

LR1 is running EIGRP with CE1 and CE2 and traffic is being load balanced between CE1 & CE2.

following two subnets:

10.10.10.0/26

10.10.10.64/26

I want to accomplish following for bidirectional traffic:

we want to use CE1 as primary and CE2 as back up router (if CE1 fails then traffic should failover to CE2) for 10.10.10.0/26 subnet.

we want to use CE2 as primary and CE1 as back up router (if CE2 fails then traffic should failover to CE1) for 10.10.10.64/26 subnet.

how to accomplish this? (If want to accomplish this by making change on LR1 L-3 switch)

can this be done by making change only on CE1 and CE2 routers?

1 Reply 1

Marwan ALshawi
VIP Alumni
VIP Alumni

use eigrp off set list to influanmce how traffic is coming to each of those networks from the CE1 and CE2

example

lets say CE2 connected to interface fa0/0 and you want CE1 to be the prefered path to network 10.10.10.0/26

(config)# access-list 99 permit 10.1.3.0 0.0.0.63

(config)# router eigrp 1

(config-router)# offset-list 99 out 20 fa0/0

for traffic going from your lan up to the CEs i think you need to you PBR with IP SLA

hope this help