ARP cache timeout changed in Windows Vista and 2008

You might remember that Address Resolution Protocol (ARP) has a local cache that prevents
broadcasting for a system whose MAC address has been resolved. Older versions of
Windows used to have a timeout of 2 minutes for ARP entries (up to 10 minutes), this
has changed. Vista and 2008 has lowered this time to a random value between 15 seconds
and 45 seconds:

http://support.microsoft.com/kb/949589

3 thoughts on “ARP cache timeout changed in Windows Vista and 2008”

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>