Dell S3100 Command Line Reference Guide for the Series 9.100.0 - Page 627
arp backoff-time, arp learn-enable
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Version pre-6.2.1.0 Description 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 Parameters arp backoff-time seconds 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(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.2(1.0) 9.0.2.0 8.3.19.0 8.3.11.1 8.3.8.0 Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Introduced on the Z9500. Introduced on the S6000. Introduced on the S4820T. Introduced on the Z9000. 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. arp learn-enable Enable ARP learning using gratuitous ARP. Syntax arp learn-enable IPv4 Routing 627
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