Symptom
As per the Cisco Nexus 9000 Series NX-OS Verified Scalability Guide, Release 9.3(10)
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/93x/scalability/guide-9310/cisco-nexus-9000-series-nx-os-verified-scalability-guide-9310.html
The switch supports 48000 STP instances however the devices triggers a log message when more than 14000 are in use
%STP-2-VLAN_PORT_LIMIT_EXCEEDED: The number of vlan-port instances exceeded [Rapid-PVST mode] recommended limit of 14000
Conditions
NX-OS 9.3.10
N9K-C93180YC-EX
more than 14000 STP vlan instances running on the device
%STP-2-VLAN_PORT_LIMIT_EXCEEDED: The number of vlan-port instances exceeded [Rapid-PVST mode] recommended limit of 14000
Further Problem Description
From DEV RCA, issue seems to be applicable only for N9K TORs. Issue not to be seen with EORs.
