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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
Defaults Disabled
Command Modes 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.
8.3.7.0 Introduced on the S4810.
8.3.1.0 Introduced.
Usage
Information
In Dell EMC 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 EMC Networking OS sends an ARP request for IP A.B.C.D.
2. At time t=1, Dell EMC Networking OS receives an ARP request for IP A.B.C.D.
3. At time t=2, Dell EMC Networking OS installs an ARP entry for A.B.C.D only on RP2.
Beginning with Dell EMC Networking OS version 8.3.1.0, when a gratuitous ARP is received, Dell EMC
Networking OS installs an ARP entry on all three CPUs.
arp max-entries
Enables you to configure the maximum number of ARP entries per VRF that are allowed for IPv4..
Syntax
arp max-entries [vrf vrf-name] max-number
770 IPv4 Routing