From: Ccieyet2b@xxxxxxx
Date: Sat Jan 06 2001 - 13:51:39 GMT-3
Hi Candidates,
Recently, I took and failed the ccie lab (1st attempt). I didn't get to day
2 because I couldn't get the frame relay connectivity working. Since the
exam, I've been reviewing and deepening my understanding of frame relay, and
have been following all the frame relay related emails on this site. During
my review I have come up with a few questions/issues on this matter I present
here for your consideration.
1) If using subinterfaces, is the command, "no ip address" on the physical
interface required in all circumstances, some circumstances or just good
practice? What problem(s) would there be if the command weren't used and is
there any "giveaway" clue that indicates this missing line is the problem
rather than something else?
2) Regarding the command, "frame-relay traffic shaping", can this command
be used on either the physical or subinterface or just the physical
interface? Also, does this command have to be used in conjunction with
map-class statements to be useful? Or conversely, do map-class statements
require that the "frame-relay traffic shaping" command be entered to have any
effect?
3) It seems that there are 2 ways of configuring traffic: using the
"frame-relay traffic rate" statement or configuring a map-class and
specifying each specific parameter. When is one way preferable to the other?
Do these 2 methods just constitute 2 different ways of achieving the effect
or are there circumstances that dictate the use of one method over the other?
4) Regarding LMI type: Does the LMI type need to be same at each end of the
PVC or just between the router and the directly connected frame switch? ie,
like the DLCI, it's only locally significant?
Thank you all in advance. Those of you who have been answering questions on
this site are a God send and are truly appreciated by myself and I'm sure
many, many others.
Jim
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