2012/1/26 Pavel Lunin <[email protected]>: > >> Why not FRR everything? The control plane hit is negligable even if >> your internet users wouldn't notice, care about, or even understand >> the improvements. > > > FRRed traffic can follow very fancy routes eating bandwidth on the way. FRR > for high loads is like sending trucks from a speedway to a narrow detour > path through a village 10 miles away. Only effect is getting it jammed. The > Internet users will also not notice a well-tuned IGP reroute or a head-end > switchover to a pre-signaled backup LSP.
I can see this happening in some corner cases, but generally speaking why would FRR LSP's take a route different than what the IGP would converge to. CSPF is roughly SPF over a different set of values. I'm asking because I've never seen this in the wild, but I'm usually switching from one speedway to another without the burden of narrow villages. > > What the VRF-based Internet users will definitely notice is (looks like RAS > is tired of telling this story) is ICMP tunneling and consequent hard to > interpret delay values. People are very suspicious to the numbers. This is > almost impossible to explain, that the numbers, traceroute shows, have > nothing to do with their kitty-photos-not-loading problem. Hey kitty photos are serious business especially if you are facebook stalking the aforementioned kitty. _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
