Reference Guide

Version 8.3.7.0 Introduced on the S4810.
Version 8.1.1.0 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version
6.2.1.0
Introduced on the E-Series.
Usage
Information
You cannot use Class D or Class E IP addresses or zero IP address (0.0.0.0) when creating a
static ARP. Zero MAC addresses (00:00:00:00:00:00) are also invalid.
Related
Commands
clear arp-cache — clears dynamic ARP entries from the ARP table.
show arp — displays the ARP table.
arp backoff-time
Set the exponential timer for resending unresolved ARPs.
S4820T
Syntax
arp backoff-time seconds
Parameters
seconds Enter the number of seconds an ARP entry is black-holed. The range
is from 1 to 3600. The default is 30.
Defaults 30
Command Mode CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.8.0 Introduced on the S4810.
Usage
Information
This timer is an exponential backoff timer. Over the specified period, the time between ARP
requests increases. This behavior reduces the potential for the system to slow down while
waiting for a multitude of ARP responses.
Related
Commands
show arp retries — displays the configured number of ARP retries.
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