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=32543&t=32543 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
