Drew, Multicast is not limited to layer 3, it exists indeed on layer 2 as well.
See my previous reply to this question. Hth, Ole ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ole Drews Jensen Systems Network Manager CCNP, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ http://www.RouterChief.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -----Original Message----- From: Drew Simonis [mailto:[EMAIL PROTECTED]] Sent: Friday, November 16, 2001 4:30 PM To: [EMAIL PROTECTED] Subject: Re: Spanning Tree Protocol [7:26538] Randy Lopez wrote: > > What Multicast address does STP use? > Since spanning tree is a layer 2 protocol, why would it use any multicast address? STP is used between directly connected switches and uses BPDU packets, flooded out all ports for set up. Not multicast. http://www.cisco.com/warp/public/473/5.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=26554&t=26538 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]