During V2T Migration North/South traffic fails after Edge Migration

Products

• VMware NSX Networking

Issue/Introduction

• After migration of Edge Nodes, virtual machines in the NSX-V environment lose north/south connectivity

• There is no ARP resolution for gateway IP.

• In the support log bundle of the ESX host, commands/dump--vxlan-info.py.txt or from the command in a ssh terminal session "net-vdl2 -S -s <VDS-name>", you can see tx.drop.guestTag is greater than 0 and possibly increasing
  

      

  net-vdl2 -S -s <VDS-name> 
  tx.passThrough: 0
  tx.vxlanTotal:  0
  tx.clone:       0
  tx.tso: 0
  tx.csum:        0
  tx.floodRateLimit:      0
  tx.drop.invalidFrame:   0
  tx.drop.guestTag:       73941

Environment

VMware NSX-T Data Center 4.x
VMware NSX-T Data Center 3.x
VMware NSX-T

VMware NSX

VMware NSX-V 6.x

Cause

NSX-V does not support running another Transport Node (NSX-T Edge) inside it running VXLAN on the same transport VLAN

Resolution

Ensure that NSXT Edge VTEP VLAN is different from ESXi VTEP VLAN on which it is hosted

Additional Information

V2T Migration Edge Cutover Checklist

https://knowledge.broadcom.com/external/article?articleNumber=317207