Arp Table Timeout

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Announcements
Please sign in to see details of an important advisory in our Customer Advisories area.

Arp Table Timeout

L0 Member

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

1 accepted solution

Accepted Solutions

L5 Sessionator

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

View solution in original post

3 REPLIES 3

L6 Presenter

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>

L5 Sessionator

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

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)?

  • 1 accepted solution
  • 2351 Views
  • 3 replies
  • 0 Likes
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!