Alarm for CNI health status in NSX-T Manager.

Products

• VMware NSX

Issue/Introduction

Title: Alarm for CNI health status
Event ID: cni_health.hyperbus_manager_connection_down
Added in release: 3.0.0
Alarm Description

• Purpose: Detect and report when the container network infrastructure channel is unhealthy.
• Impact: Container may not become running as container network cannot be pushed down or configured.

Environment

VMware NSX-T Data Center

Resolution

On the ESXi node where cfgAgent is running:

• Run 'net-stats -l' to check if Hyperbus port 4094 is missing, restarting nsx-cfgagent with command '/etc/init.d/nsx-cfgagent restart'.
• Run 'net-dvs -l' to check container host VIF. If container host VIF is blocked, check the connection with Controller to make sure all configurations are sent down.
  For example:
  In the first step, use 'net-stats -l' to find Hyperbus PortNum is: 100663317
  
  Run 'net-dvs -l' to get PortNum:100663317 info:
  port hb-f5d524fc-e1d6-4926-a292-899cdba4f024:
   com.vmware.common.port.volatile.status = inUse linkUp portID=100663317 propType = RUNTIME
   com.vmware.common.port.block = false , – To check this property to see if host VIF is block or not
   
• Run 'ps | grep nsx-cfgagent' to check cfgAgent process. If nsx-cfgagent has stopped, restart nsx-cfgagent with command '/etc/init.d/nsx-cfgagent restart'.