NSX Capacity Dashboard reports unexpectedly high prefix-list usage

Products

• VMware NSX

Issue/Introduction

• NSX Manager UI reports an alarm about high prefix-list usage, or above capacity.
• You have created less prefix-lists than the usage reported in the alarm.

Environment

VMware NSX

Cause

Each Tier-0 router and VRF are assigned instances of system-default prefix-lists in addition to user-created prefix-list.
Therefore, these system-default prefix-lists may significantly contribute to the capacity usage accounting.

Resolution

This issue is resolved in VCF 9.1, available at Broadcom downloads.

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

The system-default prefix-lists cannot be deleted.
If the number of Tier-0 routers and VRFs remain under the documented limits, you can ignore or acknowledge the alarm about prefix-lists usage:

• Navigate to Alarms in the NSX UI.
• Change the status of the alarm to ACKNOWLEDGED.

Additional Information

VMware Configuration Maximums (switch to your version of NSX)
Tier-0 routers, VRFs and prefix-lists are documented under Layer 3 Networking.