when I give the switch #show ports vlan statistics. a switch will replay to me (ports are not configured to monitor vlan statistics? how i can make this configuration for per Vlan or many, over one port?
The command that Arun provided just enables the VLAN statistics. Once it's enabled then you can run your command "#show ports vlan statistics" and you will see the vlan statistics. It's not enabled by default. This command is non intrusive.
