Arp Age Timer Increase - HP ProCurve Series 3400cl Release Notes

Enhancements
Release M.10.39 Enhancements
Enhancement (PR_1000415155) — The ARP age timer was enhanced from the previous
■
limit of 240 minutes to allow for configuration of values up to 1440 minutes (24 hours) or
"infinite" (99,999,999 seconds or 3.2 years).

ARP Age Timer Increase

The ARP age is the amount of time the switch keeps a MAC address learned through ARP in the ARP
cache. The switch resets the timer to zero each time the ARP entry is refreshed and removes the entry
if the timer reaches the ARP age.
You can increase the ARP age timeout maximum to 24 hours or more with this command:
Syntax: [no] ip arp-age <[1...1440] | infinite>
Allows the ARP age to be set from 1 to 1440 minutes (24 hours). If the option "infinite"
is configured, the internal ARP age timeout is set to 99,999,999 seconds
(approximately 3.2 years). An arp-age value of 0 (zero) is stored in the
configuration file to indicate that "infinite" has been configured. This value also
displays with the show commands and in the menu display (Menu > Switch
Configuration > IP Config).
Default: 20 minutes.
ProCurve(config)# ip arp-age 1000
Figure 13. Example of Setting the ARP Age Timeout to 1000 Minutes
To view the value of Arp Age timer, enter the show ip command as shown in
ProCurve(config)# show ip
Internet (IP) Service
IP Routing : Disabled
Default Gateway : 15.255.120.1
Default TTL
Arp Age
Domain Suffix
DNS server
VLAN
-------------------- + ---------- --------------- --------------- ---------
DEFAULT_VLAN
Figure 14. Example of show ip Command Displaying Arp Age
124
: 64
: 1000
:
:
| IP Config
| Manual
IP Address Subnet Mask
15.255.111.13 255.255.248.0
Figure 14.
Proxy ARP
No