Some recent questions from interview and lab sessions I took. - I've allowed vlan X on trunk but still its not working? why do I have to create it on every switch? - any-any rules on firewall with AV enabled is better. - ACL inboud/outbout misconcept. Always end up cutting the rope. - BGP is for ISPs only. - MPLS is for security and is fast.
Regards, Aftab A. Siddiqui On Thu, Feb 16, 2012 at 11:00 AM, Kenneth M. Chipps Ph.D. <chi...@chipps.com > wrote: > "ISIS is used in organizations other than ISPs" Any examples you can share > of some other than ISPs? > > -----Original Message----- > From: Joel jaeggli [mailto:joe...@bogus.com] > Sent: Wednesday, February 15, 2012 11:58 PM > To: Kenneth M. Chipps Ph.D. > Cc: nanog@nanog.org > Subject: Re: Common operational misconceptions > > On 2/15/12 21:04 , Kenneth M. Chipps Ph.D. wrote: > > How widespread would you say the use of IS-IS is? > > > > Even more as to which routing protocols are used, not just in ISPs, > > what percent would you give to the various ones. In other words X > > percent of organizations use OSPS, Y percent use EIGRP, and so on. > > Using EIGRP implies your routed IGP dependent infrastructure is a > monoculture. That's probably infeasible without compromise even if you are > largely a Cisco shop. > > ISIS is used in organizations other than ISPs. > > > -----Original Message----- > > From: Antti Ristimäki [mailto:antti.ristim...@gmx.com] > > Sent: Wednesday, February 15, 2012 10:47 PM > > To: John Kristoff > > Cc: nanog@nanog.org > > Subject: Re: Common operational misconceptions > > > > "IS-IS is a legacy protocol that nobody uses" > > > > > > 15.02.2012 22:47, John Kristoff kirjoitti: > >> Hi friends, > >> > >> As some of you may know, I occasionally teach networking to college > >> students and I frequently encounter misconceptions about some aspect > >> of networking that can take a fair amount of effort to correct. > >> > >> For instance, a topic that has come up on this list before is how the > >> inappropriate use of classful terminology is rampant among students, > >> books and often other teachers. Furthermore, the terminology isn't > >> even always used correctly in the original context of classful > addressing. > >> > >> I have a handful of common misconceptions that I'd put on a top 10 > >> list, but I'd like to solicit from this community what it considers > >> to be the most annoying and common operational misconceptions future > >> operators often come at you with. > >> > >> I'd prefer replies off-list and can summarize back to the list if > >> there is interest. > >> > >> John > >> > > > > > > > > > > > > > > > > >
