Users Guide

Version Description
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-6.2.1.1 Introduced on the E-Series.
Related
Commands
• show interfaces — display the ARP timeout value for all available interfaces.
clear arp-cache
Clear the dynamic ARP entries from a specific interface or optionally delete (no-refresh) ARP entries from the content addressable
memory (CAM).
Syntax
clear arp-cache [vrf vrf-name | interface | ip ip-address] [no-refresh]
Parameters
vrf vrf-name (OPTIONAL) Enter the keyword vrf and then the name of the VRF to clear the ARP
cache corresponding to that VRF.
interface (OPTIONAL) Enter the following keywords and the interface information:
• 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 the Management interface on the stack-unit, enter the keyword
ManagementEthernet 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.
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
use this option with interface or ip ip-address to specify which dynamic ARP
entries you want to delete.
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.
Command Modes EXEC Privilege
630 IPv4 Routing