After upgrade from 6.5 to 6.7 "Network connectivity restored on virtual switch "XXXX", portgroups: "XXXX". Physical NIC vmnic0 is up." shown frequently with regular VM operations

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:

• "Network connectivity restored on virtual switch "XXXX", portgroups: "XXXX". Physical NIC vmnic0 is up." is shown for following regular VM operations:
  • Powering on a VM
  • Connecting a vNIC of a VM

 

• In /var/run/log/vobd.log you see entries similar to:

2018-12-26T22:38:28.622Z: [netCorrelator] 29764580us: [vob.net.vmnic.linkstate.up] vmnic vmnic5 linkstate up
2018-12-26T22:38:28.944Z: [netCorrelator] 30086840us: [vob.net.pg.uplink.transition.up] Uplink:vmnic5 is up. Affected portgroup: Management Network. 1 uplinks up
2018-12-26T22:38:30.005Z: [netCorrelator] 31148263us: [esx.clear.net.connectivity.restored] Network connectivity restored on virtual switch "vSwitch0", portgroups: "Management Network". Physical NIC vmnic5 is up
2018-12-26T22:53:17.276Z: [netCorrelator] 29363269us: [vob.net.vmnic.linkstate.up] vmnic vmnic5 linkstate up
2018-12-26T22:53:17.469Z: [netCorrelator] 29556340us: [vob.net.vmnic.linkstate.up] vmnic vmnic5 linkstate up
2018-12-26T22:53:17.789Z: [netCorrelator] 29875934us: [vob.net.pg.uplink.transition.up] Uplink:vmnic5 is up. Affected portgroup: Management Network. 1 uplinks up
2018-12-26T22:53:19.007Z: [netCorrelator] 31094460us: [esx.clear.net.connectivity.restored] Network connectivity restored on virtual switch "vSwitch0", portgroups: "Management Network". Physical NIC vmnic5 is up
 

Resolution

 VMware is aware of this issue and this issue is resolved in ESXi 6.7 Update-2

You can download the ESXi image here

Workaround:
These messages can be ignored after cross checking with the Virtual Machine related operations performed at the same time.