Alcatel-Lucent 7705 Configuration Manual page 113

arp-retry-timer
Syntax arp-retry-timer ms-timer
no arp-retry-timer
Context config>router>interface
Description This command specifies the length of time, in 100s of milliseconds, that the system waits before
reissuing a failed ARP request.
The no form of the command resets the interval to the default value.
Default
50 (in 100s of ms)
Parameters ms-timer — the time interval, in 100s of milliseconds, the system waits before retrying a failed
arp-timeout
Syntax arp-timeout seconds
no arp-timeout
Context config>router>interface
Description This command configures the minimum interval, in seconds, that an ARP entry learned on the IP
interface is stored in the ARP table. ARP entries are automatically refreshed when an ARP request or
gratuitous ARP is seen from an IP host. Otherwise, the ARP entry is aged from the ARP table. If the
arp-timeout value is set to 0 s, ARP aging is disabled.
The no form of the command reverts to the default value.
Default no arp-timeout
7705 SAR OS Router Configuration Guide
Note: The ARP retry default value of 5000 ms is intended to protect CPU cycles on the
7705 SAR, especially when it has a large number of interfaces. Configuring the ARP retry
timer to a value shorter than the default should be done only on mission-critical links, such
as uplinks or aggregate spoke SDPs transporting mobile traffic; otherwise, the retry interval
should be left at the default value.
ARP request
Values 1 to 300
Note: The 7705 SAR will attempt to refresh an ARP entry 30 s prior to its expiry. This refresh
attempt occurs only if the ARP timeout is set to 45 s or more.
IP Router Configuration
113