On 31.10.2016 20:25, Tom Herbert wrote: > The normal hash for TCP or UDP using ECMP is over <protocol, srcIP, > dstIP, srcPort, dstPort>. For an ICMP packet ECMP would most likely be > done over <protocol, srcIP, dstIP>. There really is no way to ensure > that an ICMP packet will follow the same path as TCP or any other > protocol. Fortunately, this is really isn't so terrible. The Internet > has worked this way ever since routers started using ports as input to > ECMP and that hasn't caused any major meltdown.
The normal hash for forwarding is without srcPort or dstPort, so the same as ICMP and especially also because of fragmentation problematic I don't think a lot of routers use L4 port information for ECMP either. Bye, Hannes
