And it works, at least for us, not so bad!
6 VLANs in 1 bonding (balance-rr), 2 nodes cluster (DRBD).
Nothing done on the stack of switches (H3C) except disabling spanning tree.
Before your params : timeout, ping lost, etc.
Now : stable ping delay, but some DUP!
Live migration OK.
Thank you!
Christophe.
The DUP are natural if you run ping between nodes and vm
I am glad you have reminded my solution.