Cisco error log “vlan-port instances exceeded limit of 1800”

Cisco 6504-E, with IOS 12.2(33) SXH5, indicated below message in the log….

"%PM-SP-4-LIMITS: The number of vlan-port(logical port) instances on module 3 exceeded the recommended limit of 1800"

seems like vlan-port(logical port) is exceeded over 1800 per module. How to check and verify the vlan-port.

Once you type "show spanning-tree summary total". The commands will show the number of logical ports or interfaces per VLAN in the STP Active column. The total number represents the sum of all logical ports across all instances of STP for the different VLANs. Watch out the number does not exceed the maximum number supported for each Supervisor Engine type.

Cisco_Switch#show spanning-tree summary totals
Switch is in pvst mode
Root bridge for: VLAN0001
Extended system ID           is enabled
Portfast Default             is disabled
PortFast BPDU Guard Default  is disabled
Portfast BPDU Filter Default is disabled
Loopguard Default            is disabled
EtherChannel misconfig guard is enabled
UplinkFast                   is disabled
BackboneFast                 is disabled
Configured Pathcost method used is short

Name                   Blocking Listening Learning Forwarding STP Active
———————- ——– ——— ——– ———- ———-
118 vlan                       131         0               0          2345              2532
Cisco_Switch#
 

So, STP Active / slot #.  In this case, 2532 / slot 4 =  633 vlan-port

Quick solution would be prunning vlans that is not necessary from the module