Go CCIE Go!! - A Cisco Certified Internetwork Expert

Have a look at the campus design SRND. It discusses L3 access and how you can get polarized on routing and etherchannel. So you have to flip-flop the settings.
– http://dcp.dcptech.com
> —–Original Message—– > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On > Behalf Of Frank CCIE > Sent: Tuesday, December 11, 2007 10:41 AM > To: Cisco certification; Cisco certification > Subject: How to configure etherchannel load-balance in the > middle switch > > Hi, Experts, > > Assume there are 3 catalyst switches 3550 connected to each other in > triangle with Etherchannels. Cat1 is the root of spanning tree. > > A workstation is linked to Cat3. The major user traffic is between the > workstation in Cat3 and the users in a Vlan in Cat2. In this > topology, the traffic goes from Cat3 ->Cat1 -> Cat2 and back from Cat2 > -> Cat1 -> Cat3, because Cat1 is the root of the spanning tree. > > Cat1 > / > / > Cat2 — Cat3 > > In Cat 3 : > port-channel load-balance dst-mac > > In Cat 2: > Port-channel load-balance src-mac > > My question is: > > - How to configure etherchannel load-balance in the middle switch > Cat1, which is in the middle of traffic path? > > - Should I change the Root switch to either Cat2 or Cat 3, to make the > traffic travels between Cat2 and Cat3 without passing Cat1 ? It will > use the etherchannel bandwidth more efficient. > > Thanks in advance > > Frank > > ______________________________________________________________ > _________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html