I don't want to speak for Marko, but I'd assume the reasons for that recommendation include:
MST is more efficient -- it runs the exact number of STP instances needed to get maximum use of the physical topology, no more and no fewer. No extra BPDUs or CPU cycles spent running 50 STP instances over the same link. MST is more scalable -- Many Cisco switches can only run 128 STP instances. While some environments *might* actually have more than 128 VLANs, few would ever have more than 128 physical topology options. MST is more compatible -- Most other vendors do an MST implementation. No one else does R-PVST or regular PVST+. Sure, (R)PVST+ will interoperate with traditional CST by working around it but it's always better to run a homogeneous protocol throughout the domain to avoid any loss of information All that said, I rarely deploy MST mainly because it's more complex for someone who isn't familiar with it and I have never really run into an issue with even 128 instances of RPVST+. I usually deploy Rapid myself but I see the appeal of MST. On Sat, Nov 17, 2012 at 5:49 PM, Nick Bonifacio <[email protected]> wrote: > Very interesting, why do you suggest MST over everything else? I would > have thought Wapid PVST > > > > > ________________________________ > From: Marko Milivojevic <[email protected]> > To: Randall Crumm <[email protected]> > Cc: IPexpert <[email protected]> > Sent: Saturday, November 17, 2012 2:53 PM > Subject: Re: [OSL | CCIE_RS] Cisco Preferred STP flavor > > The default on Cat switches is PVST+. If you're doing a new > deployment, I'd highly suggest you go the MST way. > > -- > Marko Milivojevic - CCIE #18427 (SP R&S) > Senior CCIE Instructor - IPexpert > > On Sat, Nov 17, 2012 at 10:57 AM, Randall Crumm <[email protected]> > wrote: > > Hello, > > I am a voice guy and was wondering what the Cisco preferred STP flavor > is? > > > > Rapid? > > > > Thanks, > > Randall > > _______________________________________________ > > 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 > > > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ > 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 > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ > 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 > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ 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 http://onlinestudylist.com/mailman/listinfo/ccie_rs
