NSX UI displays hosts in a degraded state due to PNIC/Bond status degraded.

Products

• VMware NSX

Issue/Introduction

• In a security only install, the NSX UI shows hosts in a degraded state due to PNIC/Bond status degraded if VDS has LAG configured.
• No impact to data plane traffic.
  
  
  
  

Environment

VMware NSX

Cause

This happens with a LAG configured in vCenter. In this case, a default uplink HostSwitchProfile is created with teaming configured but the teaming policy is unused, so the uplinks are not connected to vmnics. The pnic-status remains down for DVS because the uplinks don't have a vmnic assigned.

DVS has a LAG configured, no vmnic assigned:

DVS Name  LAG Name  LAG ID  NICs  Enabled
--------  --------  ------  ----  -------
vds####   lag####   33####        true

NSX logs report bond status as down:

INFO org.corfudb.runtime.collections.streaming.StreamPollingScheduler-worker-1 TransportNodeStatusMessageHandler 8884 MONITORING [nsx@6876 comp="nsx-manager" level="INFO" subcomp="manager"] Received message for PnicBonds : {"status_summary": {"rolled_up_status": "DEGRADED","num_up": 2,"num_down": 1,"num_degraded": 0},"pnic_bonds": [{"name": "lag####","status": "UP","type": "BOND"},{"name": "lag####","status": "DOWN","type": "BOND"},{"name": "lag####","status": "UP","type": "BOND"}]} : ####-####-####-####-###########

 

 

Resolution

This issue is resolved in VMware NSX 3.2.4, available at Broadcom downloads.

If you are having difficulty finding and downloading software, please review the Download Broadcom products and software KB.

Workaround
In vCenter if there is any free vmnic on the affected host, then connect one of the uplinks in DVS to the free vmnic. This will set team status to UP and host will not show in degraded state.

Additional Information

Impact/Risks
In a Security only deployment, this issue can be considered cosmetic. No impact to dataplane.