NSX BGP down alarm showing in NSX UI

Products

• VMware NSX

Issue/Introduction

• BGP (Border Gateway Protocol) down Alarm showing in NSX UI 
• Packet drops in the production environment
• Unplanned outages
• High CPU usage on NUMA-0
• BGP connection flapping

Environment

VMware NSX

Cause

High CPU usage on NUMA-0 due to NUMA imbalance. Most network processing threads are concentrated on NUMA-0, causing CPU contention, especially with increased packet rates.

For more details see KB 413614.

 

Resolution

To workaround this issue, please see steps outlined in KB 413614.

If you still have questions or require further assistance contact support and reference this KB article, 412905 when opening up the case.