"NetHotswap: 138: Link down on ports of type" on ESXi hosts during NSX upgrade

Products

• VMware NSX

Issue/Introduction

• An NSX upgrade is being performed.
• The following message was recorded in the vmkernel.log of the ESXi host:
  

  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 516: DvsPortset-0: changing class from vswitch to vswitch (moduleID <ID>)
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 12
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 11
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 10
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 9
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 8
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 7
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 6
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 5
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 4
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 3
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 2
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 1
  <TIMESTAMP> In(182) vmkernel: <CPU Number>:<PID>)NetHotswap: 138: Link down on ports of type 0

Environment

VMware NSX
VMware ESXi

Cause

This is expected behavior. The link down message is triggered by the modular switchover process that occurs during the NSX upgrade.

Resolution

You can ignore this message and proceed with the upgrade.

Additional Information

NSXアップグレード中にESXiホストのログに次のメッセージが表示される"NetHotswap: 138: Link down on ports of type"