Hi All,
I am seeing issues with QFX5100, hashing of IPv6 traffic over ECMP paths
is very bad.
In my case I have an ECMP over 3x40Gig links, and sending 180x10Mbit
UDPv6 flows over them. First 40G gets ~300mbit, second ~600 and third ~900.
IPv4 hashing is fine ~5% variance in traffic levels.
I have enabled hashing on L3/L4 and layer2-payload but no avail.
It seems that protocol/ports are not taken into account at all. If I
start traffic from just one IP with 30 flows, they will all end up on a
single link.
Seeing this on 13.2X51-D35.3 and 14.1X53-D25.2 releases.
Here is my hashing config:
load-balance {
indexed-load-balance;
}
hash-key {
family inet {
layer-3;
layer-4;
}
}
enhanced-hash-key {
hash-mode {
layer2-payload;
}
}
Wondering if anybody have seen something similar or have seen it working
properly.
Thanks!
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