Administrator Guide
Version Description
7.6.1.0 Introduced on the S-Series.
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.
Although static ARP entries take precedence over dynamically-learnt ARP entries, a static ARP entry that points
to a wrong port is not included in the FIB or ARP entries.
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 EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100–ON.
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.
8.3.8.0 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.
IPv4 Routing 687