ericbrouwers wrote: > > Hi, > > For those that are reading Cisco Press' CCNP Routing Exam > Certification Guide: > there is a very confusing definition of type 4 summary LSAs on > page 292, > chapter 6: > > The AS external ASBR summary link- This LSA is sent to a router > that connects > to the outside world (ASBR). It is sent from the Area Border > Router to the > Autonomous System Boundary Router. The LSA contains the metric > cost from the > ABR to the ASBR. This is identified as a Type 4 LSA. > > In my opinion this is wrong, isn't it? Or maybe I'm missing > something? > > My understanding is that a type 4 summary LSA is originated by > ABRs.It is sent > into an area by the ABR to advertise the AS boundary routers. > > Could someone confirm my understanding?
Yup, I have the same comment penciled into my copy of the book. Bottom line: don't even bother trying to learn OSPF from that book. It's a disaster. (It's a pretty good book otherwise, I think?) Read "Routing TCP/IP" by Doyle. You'll want to get that book anyway if you haven't already It's terrific for real-world and certs. _______________________________ Priscilla Oppenheimer www.troubleshootingnetworks.com www.priscilla.com > > Eric Brouwers > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61622&t=61615 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
