5 Apr
2013
5 Apr
'13
3:32 a.m.
The older school of thought was to put all of the edge interfaces into the IGP, and then carry all of the external routes in BGP. I thought people where doing it because IGP converged faster than iBGP and in case of an external link failure the ingress PE was informed via IGP that it has to find an alternate next-hop. Though now with the advent of BGP PIC this is not an argument anymore.
adam