No VLAN validation in Edge Bridge when trunk is used

Products

• VMware NSX
• VMware NSX Networking

Issue/Introduction

•  Created a Segment(segment1) and configure bridging with trunkRange 10-20 .
•  Created another Segment(segment2) and configure bridging with overlapping VLAN (vlan 12).
•  Deleted this bridge. Bridge Endpoint with vlanId 12 in trunk stops working. 

Environment

• VMware NSX-T 3.x
• VMware NSX 4.x

Cause

Validations to prevent bridge Endpoint with overlapping VLAN ID, VLAN TrunkRange in same VLAN TransportZone, EdgeTransportNodes are missing.

Resolution

This is a known issue impacting VMware NSX.

Workaround:

Delete and recreate the bridge again (i.e. for the bridge which stops working)