Have you tried vAPIC in vmware using standard vswitch, what is your setting?
our vAPIC can't discover 1st leaf switch. there is no output using (none)# tcpdump -ni kpm_inb port 67 or 68 but there is lldp traffic when using show lldp traffic.
Also is there another command to manually change time of the leaf for discovery? apic and leaf time is out of sync and #clock set command is not working.