Flush Routing, MAC, and ARP Tables for a Port

1. Enter GigabitEthernet Interface Configuration mode:

   enable

   configure terminal

   interface GigabitEthernet {slot/port[/sub-port][-slot/port[/sub-port]][,...]}

   

   Note

   If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.

2. Flush IP routing tables by port:

   action flushIp

3. Flush the MAC address tables by port:
   action flushMacFdb

   

   Note

   Flushing MAC address tables multiple times in a very short period of time can cause undefined errors. Wait at least 10 seconds between MAC flushes on VSP 8600 Series.

4. Flush ARP tables by port:

   action flushArp

5. Flush all tables with one command:

   action flushAll

6. Exit to Global Configuration mode:

   exit

7. Clear a routing table for a port:

   clear ip route gigabitethernet {slot/port[sub-port]}

Example

Switch:1>enable
Switch:1#configure terminal
Switch:1(config)#interface gigabitEthernet 1/1
Switch:1(config-if)#action flushAll
Switch:1(config-if)#exit
Switch:1(config)#clear ip route gigabitethernet 1/1