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=32520&t=32520 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
