> I believe the idea is quite simple - > Flooding a changed LSA in HW (data plane) is faster than > doing it in SW (not matter how optimized the latter is) or > your control plane.
That's the main purpose, yes. You could combine this with something else: OSPF could pre-calc/pre-download potential new LSAs to the dataplane anticipating local failures. Whenever a local failure really happens, dataplane notices it by LoS or BFD, then can immediately disseminate the changed LSA using FN. So, in addition to the per-hop CP processing of LSAs, you could also spare some time with originating an LSA: - failure trigger reaching/processed by CP - OSPF originating a new LSA - OSPF sending the LSU packet down to DP Cheers, András _______________________________________________ OSPF mailing list [email protected] https://www.ietf.org/mailman/listinfo/ospf
