Hi Amit, If you will only place root guard on your root switch, then this means that you are only protecting root switch from receiving superior BPDUs. But what about the other switches which are part of your L-2 topology? They will accept the superior BPDU from the rogue switch and which in turn will destroy your L-2 topology. So, to make it simple, you need to place root guard on all the ports of all the switches where you do not expect a root bridge.
Regards, Syed Asif RazaCCIE (R&S) 29012 > Date: Mon, 14 Nov 2011 14:49:52 +0530 > From: [email protected] > To: [email protected] > Subject: [OSL | CCIE_RS] Rootguard placement > > Hi, > > > I need to knwo where exactly should the root guard should be configured. I > feel it should always be on Root Switch . > > And if not kindly explain with a diagram . > I have this Link( > http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00800ae96b.shtml) > but i am still confused abt it. What should go wrong if i have this > commmand on Root Swtich. > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
