High CPU warning on Load Balancer due to edge resource contention

Products

• VMware NSX

Issue/Introduction

High CPU warnings on multiple Load balancers (or other applicable products) with more than 1 Edge.

• Aria operations showing high CPU on Edges
• 

Environment

• VMware NSX
• Multiple VMware native load balancer or applicable services per T1

Cause

• Multiple T1(s) with Load Balancers (or other applicable products) on a single edge may exhibit higher than expected CPU usage and result in CPU warnings being generated.

Resolution

This may help "PIN" Load Balancers associated with a T1 to a specific EDGE to mitigate potential resource contention. This is expected behavior with a high number of services configured per T1.

• Workaround:
• To have a T1 "Fail Back" to an edge use the preemptive Fail Over as shown
• 
• Select the "Auto Allocate Edges" to off
• Then choose the edge(s)
• 

Additional Information

• Add an NSX Tier-1 Gateway
• VMware Configuration Maximums
• Very High Load Balancer CPU Usage Alarm
• Very high total CPU usage of all load balancers Alarm
• Troubleshooting NSX Native Load Balancer