You have to use it cause you need to restrict the local traffic in Switch Block instead of going through Core. As you can specify S3/S4 as root/secondary bridge, there won't be bridging loop.
----- Original Message ----- From: "pauldongso" To: Sent: Friday, November 15, 2002 11:19 PM Subject: ccnp switching - capus network design [7:57534] > Hi All, > > Am reading ccnp switching exam guide (cisco press), I am very confused > by the design example provided in the book. > > A provided design of typical switch block: > > L2 S1 L2 S2 (Layer2 switching) > | \ / | > | \ / | > | \ / | > | \ / | > | /\ | > | / \ | > | / \ | > L3 S3 --- L3 S4 (Layer 3 switching) \ / > to core layer > > > My question is why the direct link between L3 S3 and L3 S4 is required? > Won't it be a bad design which would impose the potential of bridging loop? > Since L3 switching is used, HSRP and routing protocol will provide > enough route failure detection and redundancy function. > > Is this a practical design in the real world? > > Thanks > > Paul Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=57536&t=57534 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
