We got a lot of ping losses when we do vmotion in our cisco and hp switch enviroment (15 to 40 ping losses) . We changed the "notify switches to yes" in the switch on every esx server.
After that we lose only one ping when we do vmotion.
1) is your vMotion network a private physical switch/VLAN only used by ESX servers, or is this on a public network.
2) Are you routing the vMotion between two networks.
3) Please post output of:
