topic Arp Table Timeout in General Topics

Arp Table Timeout

slawek.kunach — Mon, 16 Jul 2012 07:50:25 GMT

I wonder if anyone might be able to tell me how long the ARP table timeout on a PA 2020 might be.

Re: Arp Table Timeout

mikand — Mon, 16 Jul 2012 10:01:07 GMT

I dont know if the PA-2020 got some other value but according to the CLI Reference Guide for PANOS 4.1 the default is 1800 seconds:

Sample Output

The following command displays ARP information for the ethernet1/1 interface.

username@hostname> show arp ethernet1/1

maximum of entries supported : 8192

default timeout: 1800 seconds

total ARP entries in table : 0

total ARP entries shown : 0

status: s - static, c - complete, i - incomplete

username@hostname>

Re: Arp Table Timeout

zarina — Mon, 16 Jul 2012 17:01:43 GMT

Hello,

The default timeout is 1800s:

admin@PA-2020> show arp all

maximum of entries supported : 1000

default timeout: 1800 seconds

total ARP entries in table : 9

total ARP entries shown : 9

status: s - static, c - complete, e - expiring, i - incomplete

Re: Arp Table Timeout

mikand — Mon, 16 Jul 2012 18:25:27 GMT

By the way, how come the default is 1800 seconds (30min) when for example Cisco (switch/router)equipment uses 300 seconds (5min) for mac-address-table timeout and 14400 seconds (4 hours) for arp table timeout (or TTL actually)?