mac-address-table aging-time best practices

Unanswered Question
Dec 15th, 2008
User Badges:

Question regarding mac aging time.

On a core switch such as a 6500 is there a best practice and benefit to configuring the mac aging time other than the default of 300 seconds? I have heard it is best to up this to say 84600 of there abouts.


  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Jon Marshall Mon, 12/15/2008 - 09:01
User Badges:
  • Super Blue, 32500 points or more
  • Hall of Fame,

    Founding Member

  • Cisco Designated VIP,

    2017 LAN, WAN


One of the things that springs to mind with setting mac-aging is to avoid unicast flooding. Have at look at this following document and specifically at the "Asymmetric Routing" section -



This Discussion