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Dell EMC Configuration Guide for the S3100 Series 9.14.2.4

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Clearing ARP Cache

To clear the ARP cache of dynamically learnt ARP information, use the following command.

Clear the ARP caches for all interfaces or for a specific interface by entering the following information.
EXEC privilege
clear arp-cache [interface | ip ip-address] [no-refresh]
  • ip ip-address (OPTIONAL): enter the keyword ip then the IP address of the ARP entry you wish to clear.
  • no-refresh (OPTIONAL): enter the keywords no-refresh to delete the ARP entry from CAM. Or to specify which dynamic ARP entries you want to delete, use this option with interface or ip ip-address.
  • For a 1-GigabitEthernet interface, enter the keyword GigabitEthernet then the slot/port information.
  • For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port information.
  • For a port channel interface, enter the keywords port-channel then a number.
  • For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
NOTE Transit traffic may not be forwarded during the period when deleted ARP entries are resolved again and re-installed in CAM. Use this option with extreme caution.

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