Arp Configuration; Arp Timeout; Table 201: Address Resolution Protocol Commands - Edge-Core ECS4810-12M Layer 2 Management Manual

ARP C
ONFIGURATION

arp timeout

This section describes commands used to configure the Address Resolution
Protocol (ARP) on the switch.

Table 201: Address Resolution Protocol Commands

Command Function
arp timeout Sets the time a dynamic entry remains in the ARP
cache
clear arp-cache Deletes all dynamic entries from the ARP cache
show arp Displays entries in the ARP cache
This command sets the aging time for dynamic entries in the Address
Resolution Protocol (ARP) cache. Use the no form to restore the default
timeout.
S
YNTAX
arp timeout seconds
no arp timeout
seconds - The time a dynamic entry remains in the ARP cache.
(Range: 300-86400; 86400 seconds is one day)
D S
EFAULT ETTING
1200 seconds (20 minutes)
C M
OMMAND ODE
Global Configuration
C U
OMMAND SAGE
When a ARP entry expires, it is deleted from the cache and an ARP
◆
request packet is sent to re-establish the MAC address.
The aging time determines how long dynamic entries remain in the
◆
cache. If the timeout is too short, the switch may tie up resources by
repeating ARP requests for addresses recently flushed from the table.
E
XAMPLE
This example sets the ARP cache timeout for 15 minutes (i.e., 900
seconds).
Console(config)#arp timeout 900
Console(config)#
– 1381 –
| IP Interface Commands
C 45
HAPTER
IPv4 Interface
Mode
GC
PE
NE, PE