How to verify the Edge Uplink mapping for the NSX VLAN logical segment?

Products

• VMware NSX
• VMware NSX-T Data Center

Issue/Introduction

This document provides steps on how to verify the uplink mapping to fp-ethx interfaces where multiple uplinks are configured on the Edge node, connected to different VLAN-backed logical segments for high availability (HA) purposes.

Refer to the example screenshot below, where the T0 gateway has two uplinks configured, each connected to a different NSX VLAN Logical Segment.

 

Environment

VMware NSX-T Data Center

VMware NSX

Resolution

To verify the VLAN assigned to the VLAN-backed logical segment and the associated Uplink fp-ethx interface mapping, log in to the Edge node via CLI and run the command show logical-switches.

The example output below demonstrates the VLAN assignment and the corresponding Uplink fp-ethx interface mapping for the VLAN-backed logical segment.

edge01> get logical-switch

Logical Switch
UUID                                   VLAN   DEVICE   NAME
########-####-####-####-##########7a   1      fp-eth1  Edge-Uplink-1-Segment
########-####-####-####-##########8a   2      fp-eth1  Edge-Uplink-2-Segment

Please note that fp-eth1 corresponds to Network Adapter 3 in the vCenter UI. The Edge node interface naming starts from eth0 (management interface), followed by fp-eth0, fp-eth1, and so forth.

Please refer to the document below for detailed instructions on configuring the Named Teaming Policy. It provides guidance on how to change the uplink mapping. For example, to configure Edge-Uplink-1-Segment to send uplink traffic to fp-eth0 and Edge-Uplink-2-Segment to send uplink traffic to fp-eth1.

NSX 4.2 Admin Guide - Configure Named Teaming Policies.