17 Jul
2012
17 Jul
'12
12:49 p.m.
On Monday 16 July 2012 21:11:18 you wrote:
The disadvantage to this is the high probability of packet duplication. For someone worried about ICMP spam on the subnet, I'm surprised you're not worried about what happens when 2 or more routers copy the same packet and route both copies on to the end destination. (Lather, rinse, repeat said duplication for any upstream segments using such tactics as well).
No. The all-routers anycast address is resolved and creates a single Layer 2 neighbor entry - it may change, but there's no packet duplication issue here because routing of an individual packet will only ever go to a single host at L2, There is a difference between Multicast and Anycast. Regards, Oliver