VMware NSX Alarms UI displays "IP Pool Usage very high"

Products

• VMware NSX

Issue/Introduction

This article provides a resolution when the VMware NSX Home > Alarms UI displays the following event:

• Event ID: IP Pool Usage Very High

 

Environment

VMware NSX
VMware NSX 3.1.2

Cause

While allocating the IP from the IP pool, NSX checks that the total remaining IPs for allocation should not be less than 10%. If the remaining IPs for further IP allocation is less than 10% VMware NSX raises an alarm.

Resolution

This is a condition that may occur in a VMware NSX environment.

Note:  A maintenance window is not required for remediation.

 

Review the IP pool usage. It can be resolved  by any of the below-mentioned steps:

• Add a new subnet in the IP pool, this will extend the available range of IPs for allocations.
• Create a new IP pool and use it for allocation.
• Release the unused IP allocations from the IP pool. Contact VMware support for this process. 

 

Note: Releasing the IP Allocations must be done carefully, only after confirming that the given IP is not being used anywhere, or it will create issues with other systems.

Impact

Allocation of an IP from the IP Pool may fail in the future, due to limited IPs available in the IP Pool for allocation.