Yes; I see. I was not looking at the RDs. I was focused on the RC length. So therefor both examples are wrong for differnet reasons. Isn't that a great way to prepare for a test... "Pick the least wrong answer" :-> DaveC John Neiberger wrote: > > That example ends in a 3, but a valid RIF will end with a zero because > the last step in a route will always be a ring, not a bridge. Therefore > the last bridge field will be a zero. > > >>> "David Chandler" 4/17/01 2:18:03 PM >>> > Why can't the 3 be correct? > > The only 3 in the rif is part of a RD (route > designator field) the 0810 is the RC (route > control field). > > RC= > Type 3 bits = 000 (directed explorer > non-broadcast) > Length 5 bits = 01000 = 8 bytes = # of bytes of > the rif RC + RD; in this example 1 RC + 3 RDs (2 > bytes each) > Direction 1 bit = 0 = left to right > Largest 3 bit = 001 = 1500 bytes > > DaveC > > John Neiberger wrote: > > > > That is a great link! Thanks for posting it, that's going to be > very > > helpful. > > > > >>> "Sean C." 4/17/01 12:59:51 PM >>> > > Hi Mike, > > > > Have been following your statements on various RIF docuements. Your > > second > > RIF: > > 0810 00A1 00B2 00C3 > > cannot be valid because it ends in a 3 - and I assume you know that > > it's > > supposed to end in a 0 so I'll take the guess that this is just a > > typo. > > > > I referenced your two links and I think the Cisco link is incorrect. > > I > > could not find where in the CCPrep document it states that an 8 > equals > > a 3 > > bridge/ring combo. On page 5 of the CCPrep paper (almost at the > > bottom) it > > states "A value of '8' means that there are two bridges" which > would > > be > > consistent with the rest of that RIF. > > > > Have you tried this link: > > > > http://www.loopy.org/rif.cgi > > > > Good luck, > > > > Sean C. > > CCNP, CCDP, MCSE > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=1002&t=1002 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
