So I've been scratching my head on this one and was wondering if anyone else out there has run into this. Anyway, we have an AFF8080 (2 node/HA) each with a two 10GbE-port IFGRP configured LACP:
node ifgrp distr-func mode up-ports
-------- ----- ---------- -------------- --------
node1 a0a ip multimode_lacp e0e,e0g
On "node1" we're seeing a good balance of I/O between ports e0e and e0g. Looking at the graphs on OnCommand UM the two ports track eachother pretty well depending on what kind of work is going on.
On "node2" we're seeing a super-busy e0e port and a mostly idle e0g port. I did a few statit gathers and here's what we're seeing:
e0e recv 313,367,472.46
e0g recv 31,750,676.82
e0e recv 217,023,661.04
e0g recv 4,764.75
Ignore the "lower" numbers for e0g on "node1" in the list above - it's usually just as busy. However, e0g on "node2" just never seems to get much traffic. Both ports are healthy (i.e. no dropped packets, no retransmits, etc) so it's just like e0g isn't holding up its part of the ifgrp on "node2".
I've got a note into our network team to see if they can see anything wonky with the port/switch/etc. Any ideas the community might have as to where to start would be greatly appreciated.