> I think it's physical network layer issue, I don't think there is a mis-configuration on VMware layer, maybe firewall between datacentres?
Firewall between data centers? How do I get around that? Turn off firewall on both ESXi hosts? Any other possibilities?
Also, if it's firewall between the datacenters, why do the public/mgmt IPs on primary and secondary work?
BTW, I am using vDS for ESXi management as well and configured Channel network vNICs (for both primary and secondary)
on the newly created vDS. However, the Channel network is still NOT working.