hi,
we have a 2 layers network with 6 backbone multilayer switches 6500 (at the distribution layer). there are two internet lines. from different routers. As we decided to share the load, we (rouglhy) implemented like this
on 6500-router-1.
ip route 0.0.0.0 0.0.0.0 1st.internet.line.router tag 1
on 6500-Router-2 :
ip static routes to 2nd.internet.line.router # so according to destination network the traffic goes to one or another router
ip route 0.0.0.0 0.0.0.0 2nd.intenret.line.router 255 tag 1
I think this last command would give me failover in case 1st default route would go down. but in practice it was not.
in my test, I shutdown 6500-router-1, but there were no defaut route any longer.. i could not go to interent, except static route of course.
I checked in the eigrp guide, but i couldn't find easy implementation. what could be the solution if
we dont want to load balance. the two line are on different routers, I mean there are no common enterprise edge block.. the goal is to have a backup route.
thank you