Is it possible to use LFA in IS-IS for broadcast links? Neighbours reachable via P2P links are used for repair-paths but broadcast links are not used at all.CSR1#sho isis rib
4.4.4.4/32 prefix attr X:0 R:0 N:1
[115/L1/30] via 192.168.13.3(Gigab...
Is it possible to use SRLG for EIGRP LFA? The documentation mentions SRLG as a tie-breaker but I didn't manage to get the correct behaviour in the lab. I am not sure if I do smth wrong or the feature is just not supported fully yet.CSR1#sho ip ei top...
Hi, I don't quite understand how 'distance <AD> <IP> <wildcard>' works specifically for OSPF. Here is the topology: R1, R2, and R3 are running OSPF; R2, R3 and R4 are running RIP. R2 and R3 are performing redistribution in both directions.The relevan...
Not really, ACI forwarding is much more complex. If you've got some spare time, look through this section of the white paper. In short: ACI uses conversational forwarding (~ caches VTEP information) on leafs and centralized endpoint database (COOP) o...
If you are trying to achieve summarization of routes, auto-summary is not a proper tool since it's a remnant of classful routing. In essence, it announces prefixes without masks (hence "summarization" to class boundary) but only when the update cross...
Usually BGP is indeed used to transport routes alongside with MPLS backbone. Moreover, redistribution into IGP is not recommended due to scalability reasons.However, at some point before MPLS widespread, if you needed BGP-free core, then the only via...
Maybe it's also worth pointing out that authentication (per area or per interface) provides OSPF protocol integrity but not confidentiality. As @Emhmed shared, it's possible to connect to broadcast segment and sniff the updates. Although it would not...
The answer turned out to be simple. SRLG in EIGRP LFA is a tiebreaker, not a constraint. So if there is no alternative besides link in the same SRLG, then the only variant left is used as repair route.
