Clearing ARP information for an interface
You can clear the ARP cache as part of ARP problem resolution procedures.
Procedure steps
Clear ARP information using the following commands:
clear ip arp ports <port>
clear ip arp vlan <vid>
Flushing routing, MAC, and ARP tables for an interface
Use this procedure to clear or flush routing, MAC, and ARP tables for an interface. For
administrative and troubleshooting purposes, sometimes you must flush or clear the routing
tables. The clear and flush commands perform the same function; they remove the contents
of the table.
Procedure steps
1. Flush IP routing tables by port by entering the following command:
2. Flush IP routing tables by VLAN by entering the following command:
3. Flush the MAC address and ARP tables by entering the following commands:
4. Clear a routing table by entering the following commands:
Troubleshooting
config ethernet <ports> action flushIp
config vlan <vid> action flushIp
config ethernet <ports> action flushArp
config ethernet <ports> action flushMacFdb
config vlan <vid> action flushArp
config vlan <vid> action flushMacFdb
clear ip route port <ports>
clear ip route vlan <vid>
Clearing ARP information for an interface
July 2013
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