Adam , SPD is limited to certain packets , this is what I found in an old email ; When process switching to repopulate caches after aroute or interface flap, the code currently throttles (temporarily disables) interfaces that reach 75 packets on their process level input queue. As BGP,IGP, and keep-alive packets are a very small percentage of the total traffic being presented to the router under these circumstances, the current throttling mechanism will likely throw these packets away. We then lose peers and/or adjacencies, more routes flap, we continue to invalidate parts of the cache, our neighbors then lose routes as well, and the world goes to hell. The basic idea behind Selective Packet Discard (SPD) is this: if we mark all BGP and IGP packets as being "important" by using the precedence bits in the IP header, and prefer enqueuing these packets over others, we should process a larger percentage of the packets that will allow routing and, consequently, the caches to stabilize. show ip spd show int <blabla> switching' has some extra info too. flem __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
