To configure a static MAC address, the following command is used: (config. The static MAC entries will be retained even after the switch is restarted. I have recently noticed on Cisco 6500's at least that when you perform a show mac address-table that there is a legend with a showing the entry is primary and has been learnt by this switch from a directly attached device like a server rather than from another switch. To change, use below command- Cisco-SW(config)#mac address-table aging-time ?Р вЂќР’В¬isco-SW(config)#mac address-table aging-time 500 ? Although Cisco switches dynamically build the MAC address table by using the source MAC address of the received frames, you can also manually add a MAC address to the switchР Р†Р вЂљРІвЂћСћs MAC address table. You can check using Р Р†Р вЂљРЎС™ show mac address-table aging-timeР Р†Р вЂљРЎСљ command and change it as per your requirement. There is another important thing you need to know to manage mac address table, which is aging time. Total Mac Addresses for this criterion: 4 If you want to check mac address for a particular port number, then you can use Р Р†Р вЂљРЎС™ show mac address-table interface Р Р†Р вЂљРЎСљ Cisco-SW#show mac address-table vlan 1 Total Mac Addresses for this criterion: 1

Cisco-SW#show mac address-table address 0050.7966.6800 If you know the specific mac address, then you can use below command to check mac address entry for that address using Р Р†Р вЂљРЎС™ show mac address-table address Р Р†Р вЂљРЎС™. First of all checking the mac address table by using Р Р†Р вЂљРЎС™ show mac address-tableР Р†Р вЂљРЎС™. To manage mac address table, we need to know a couple of commands in Cisco Catalyst switches.

Cisco mac address table