Reference Guide

470 | IPv4 Routing
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Command History
Usage Information
In FTOS 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 FTOS sends an ARP request for IP A.B.C.D
2 At time t=1 FTOS receives an ARP request for IP A.B.C.D
3 At time t=2 FTOS installs an ARP entry for A.B.C.D only on RP2.
Beginning with version 8.3.1.0, when a Gratuitous ARP is received, FTOS installs an ARP entry on all
3 CPUs.
arp retries
z
Set the number of ARP retries and the time between retries in case the system does not receive an ARP
reply in response to an ARP request.
Syntax
arp retries number
Parameters
Defaults
5
Command Modes
CONFIGURATION
Command History
Usage Information
Retries are 20 seconds apart.
Related
Commands
arp timeout
z
Set the time interval for an ARP entry to remain in the ARP cache.
Syntax
arp timeout minutes
To return to the default value, enter no arp timeout.
Parameters
Defaults
240 minutes (4 hours)
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.11.1 Introduced on Z9000
S6000
number
Enter the number of retries.
Range: 1 to 20.
Default: 5
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.11.1 Introduced on Z9000
arp backoff-time Set the backoff timer for repeat ARPs.
S6000
seconds
Enter the number of minutes.
Range: 0 to 35790.
Default: 240 minutes.