Scott, What error are you referring too? The book is correct in regards to split horizon and frame-relay.
The only 'shortcoming' I see in the frame-relay chapter is that it doesn't beat into the reader's head the ip split horizon issue with frame-relay physical interfaces ;-) Brian Dennis, CCIE #2210 (R&S)(ISP/Dial) CCSI #98640 5G Networks, Inc. [EMAIL PROTECTED] ""Scott"" wrote: > While what you are saying regarding split horizon is true, I agree with > Chuck in that it was a little confusing exactly what the authors were > talking about (physical or sub). Anyone studying for the lab exam should > pick that error up immediately, but for people that are just really starting > down this road it could create a big bump. > > my $0.005 > > ""Brian Dennis"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Chuck, > > I don't think that you are totally correct here. Yes, on a frame-relay > > physical interface "ip split-horizon" is disable. But on a frame-relay > > multipoint subinterface "ip split-horizon" is enabled. In both places in > > chapter 5 where I found him referring to ip split horizon, it seems that > > he's referring to it in reference to frame-relay multipoint subinterfaces. > > So if that's the case, he is correct to say it needs to be disabled. > > > > The rule with frame-relay is: > > > > Physical interface - ip split horizon is off > > Multipoint subinterface - ip split horizon is on > > Point-to-point subinterface - ip split horizon is on > > > > > > Brian Dennis, CCIE #2210 (R&S)(ISP/Dial) CCSI #98640 > > 5G Networks, Inc. > > [EMAIL PROTECTED] > > > > > > ""Chuck Larrieu"" wrote in message > > news:... > > > I've now browsed chapters 2-5 > > > > > > Chap 2 - LAN protocols - tells you everything you were afraid to ask > about > > > the raw protocols historical tables. cable types, frame types, IEEE > > > references. Let's call this the "Priscilla" chapter ;-> > > > > > > also covers bridging and switching in good detail. I read with great > > > interest the section on token ring switching, and found it to be the > best > > > guide I have seen with regards to both the theory and the practical > > > configuration of a 3920 switch. I say this with confidence because the > > > recommendations are very close to what I developed independently, using > > > Cisco documentation and the 3920 simulator which I believe NLI is now > > > selling. Confidence because not too long ago I was someplace where > this > > > was important, and everything worked the way it was supposed to on the > > 3920, > > > at least. superior IMHO to the very good explanation found in the > Kennedy > > > Clark book. > > > > > > Chap 3 WAN HDLC - OK > > > > > > Chap 4 WAN PPP - not too bad. concentrates on ISDN / dial. The section > on > > > PPP multilink is incredibly poor, to the point of being useless. this > > > surprised me, as there is so much detail elsewhere. > > > > > > Chap 5 - frame relay. another decent chapter. contains a HUGE error. > > states > > > that frame relay split horizon is on by default, and that you have to > > > disable it manually. not true, and the source of woe to many who find > > > themselves frustrated with certain sections of various practice labs. on > a > > > frame relay interface, split horizon is DISabled by default. several > CCIEs > > > otta be ashamed of themselves for letting that one through! ;-> > > > > > > The several lab exercises at the ends of each chapter cover the > > fundamentals > > > pretty well. They are not necessarily CCIE level labs, but they are > > > certainly worth looking at. > > > > > > So far, what I would say, is that the book contains a lot of good > > reference > > > information, some good practical configuration information, and some > > decent > > > exercises for all levels. I continue to recommend this one as something > > > folks new to the field, or just starting out in the certification grid, > > plan > > > on adding to their libraries. Along with the books by Doyle and Caslow, > > this > > > is one that can serve well throughout the journey. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32567&t=32567 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
