thing right now. I'm reading the Sybex BSCI book. Eric ----- Original Message ----- From: Pistone, Mike To: 'ericbrouwers' Sent: Thursday, January 23, 2003 10:50 PM Subject: RE: Wrong definition type 4 summary LSA for ASBRs [7:61615]
I'm reading the CP CCNP Routing Cert Guide too, and have found many of the same faults you did. I found reading the Sybex CCNP books at the same time (the chapters almost exactly match up) works very well. Sybex gives you the introduction in a understandable way, and then the Cisco book elaborates on the topics... Mike _______________________________ Mike Pistone NASA - Russian Services Group Marshall Space Flight Center Huntsville, AL 35806 Ph: (256) 544-2915 Em: [EMAIL PROTECTED] -----Original Message----- From: ericbrouwers [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 23, 2003 2:52 PM To: [EMAIL PROTECTED] Subject: Re: Wrong definition type 4 summary LSA for ASBRs [7:61615] All of you, thanks for the answers. This routing exam cert. guide is a pretty good book, although I haven't read the BGP and IS-IS sections yet. But the OSPF section needs some corrections indeed . Anyway, I think I will follow Priscilla's advise to buy Doyle's routing book, because now I have around six books (a/o ICND, DCN and CID related books) that all cover fractions of routing, but not the full story. Moreover, sometimes they are in contradiction. Eric ----- Original Message ----- From: "Priscilla Oppenheimer" To: Sent: Wednesday, January 22, 2003 11:21 PM Subject: RE: Wrong definition type 4 summary LSA for ASBRs [7:61615] > 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=61845&t=61615 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
