NSX-T Capacity Dashboard reports unexpectedly high prefix-list usage
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Article ID: 324221
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Updated On:
Products
VMware NSX
Issue/Introduction
Symptoms:
On the Manager UI, Networking -> Network Overview -> Capacity. Prefix-lists shows unexpectedly high usage.
A global total capacity total of 500 is displayed.
In the event that 350 Prefix-lists or more exist, an alarm will also be observed.
Environment
VMware NSX-T Data Center VMware NSX-T Data Center 3.x
Cause
When a T0 or VRF is created, the system will automatically create a number of prefix-lists for each instance. These prefix-lists are required for route redistribution. This explains why there may be a large number of system created prefix-lists present even before user created ones are added. The capacity dashboard alert incorrectly bases its calculation on a global prefix-limit of 500. The limit is in fact 500 per T0. Note this is a soft limit and will not prevent the creation of up 100 VRFs per T0.
Resolution
This issue has been resolved in NSX-T Data Center 3.1.3.1, available at VMware Downloads.
Workaround: There is no workaround for this issue.