Spanning tree has given me more business than anything else these last few weeks...it's amazing what enabling port-fast can do for your macintosh/novell network!!! :) -Brad <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Your understanding is correct, as far as the information you've given goes. > However, presumably you are running multiple VLANs in this setup? > If you are using per-VLAN spanning tree, you have a separate spanning tree for > each VLAN. You can set 6500a to be the root bridge for some of the VLANs, and > 6500b to be the root bridge for the other VLANs. Then, although each particular > spanning tree uses one switch, your total traffic will be balanced across both. > If one falls over, spanning tree for the affected VLANs swaps across to the > remaining 6500. > > Anyway, whether it's a waste of dollars to have a switch sitting there in case > of failure depends on how much the failure will cost you if the second switch > isn't there :-) > > JMcL > ---------------------- Forwarded by Jenny Mcleod/NSO/CSDA on 16/08/2000 04:26 pm > --------------------------- > > > "Rick Holden" <[EMAIL PROTECTED]> on 16/08/2000 01:23:36 pm > > Please respond to "Rick Holden" <[EMAIL PROTECTED]> > > > To: [EMAIL PROTECTED] > cc: (bcc: JENNY MCLEOD/NSO/CSDA) > Subject: STP > > > > I have a question on Spanning tree across the core layer. If I have switch > stacks that look like the following diagram: > > 2924 2924 2924 2924 2924 2924 2924 2924 2924 > 2924 2924 2924 2924 2924 2924 2924 2924 2924 > 2924 2924 2924 2924 2924 2924 2924 2924 2924 > 2924 2924 2924 2924 2924 2924 2924 2924 2924 > > 5000 5000 5000 5000 5000 5000 5000 5000 5000 > > 6500a 6500b > > If I have two links going to each 6500 from the 5000s and the 6500a switch > is the root bridge, then is 6500b switch even going to be used. From my > understanding of STP, all traffic is going to go through the root bridge in > the even of redundant paths. If this is true then (not that I am downing > fault tolerance) it is a waste of a switch that costs thousands of dollars > just to sit there and wait for the 6500a switch to go down. Am I getting > this correct or is there a way to setup STP so both 6500s get used with > about the same load? > > > > ___________________________________ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > ___________________________________ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > --- ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
