Reference Guide

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.
arp learn-enable
Enable ARP learning using gratuitous ARP.
Z9000
Syntax
arp learn-enable
Defaults Disabled
Command
Modes
CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 9.0.2.0 Introduced on the S6000.
Version
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 8.3.1.0 Introduced.
Usage
Information
In Dell Networking OS versions prior to 8.3.1.0, if a gratuitous ARP is received some
time after an ARP request is sent, only RP2 installs the ARP information. For
example:
1. At time t=0, Dell Networking OS sends an ARP request for IP A.B.C.D.
2. At time t=1, Dell Networking OS receives an ARP request for IP A.B.C.D.
3. At time t=2, Dell Networking OS installs an ARP entry for A.B.C.D only on RP2.
Beginning with Dell Networking OS version 8.3.1.0, when a gratuitous ARP is
received, Dell Networking OS installs an ARP entry on all three CPUs.
IPv4 Routing
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