This issue is resolved in:
To work around this issue if you do not want to upgrade , use one of these options:
Workaround 1- Migrate the virtual machine to the DLR host first without changing network
- Change networking on the virtual machine from VLAN to bridged VLAN
- Migrated to any host in the transport zone.
Workaround 2
Edit the following virtual machine settings:
- Disconnect the vNIC and Save.
- Change the vNIC from VLAN to VXLAN and Save.
- Connect the vNIC and save, traffic works because disconnect and connect would trigger GARP.