ECMP failover

[shurik]

Hi!
I have remote network which is routed via two gateways (RADIX_MPATH in kernel):

Routing tables

Internet:
Destination        Gateway            Flags     Netif Expire
192.168.11.0/24    10.0.0.2           UGS      ngeth1
192.168.11.0/24    10.0.0.6           UGS      ngeth2

All works fine until one of the gateway is down - this traffic continues to route via dead gateway. Do I need any external tool to monitor gateways (such as chek-gateway=ping in RouterOS) and deal with routes by hand?

 

[leebrown66]

Yes you do. As it looks like you control both ends of the pipe, I'd use OSPF. You can configure that to use only 1 gateway with the 2nd being a backup if the first goes down, or you can share both gateways which will load-balance routes over both links, while if either link fails, the other will take over.

 

[shurik]

Ок, thank you