Service Manual

Version Description
7.5.1.0 Introduced on the C-Series.
pre-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.
You can use the vrf attribute of this command to create a static ARP entry on either a default or a
non-default VRF. You cannot use this parameter to create any static ARPs corresponding to management
VRFs. When a VRF is deleted using the no ip vrf command, all the static ARP configurations that
belong to that VRF are removed automatically.
Related
Commands
● clear arp-cache — clear dynamic ARP entries from the ARP table.
● show arp — display the ARP table.
arp backoff-time
Set the exponential timer for resending unresolved ARPs.
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, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
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.
8.3.8.0 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 — display the configured number of ARP retries.
690 IPv4 Routing