I'm working on Lab 3, but frankly this is not making sense to me.
So I hope somebody can help me. I have several questions:
1. We are told: do not rely on Dynamic Mappings
==> Of course that means NO frame-relay interface-dlci command allowed
But the solution does use frame-relay interface-dlci!
R2 is initially configured like this:
interface Serial1/0.24 point-to-point
ip address 150.50.24.2 255.255.255.0
frame-relay interface-dlci 204
and then this changed to:
interface Serial0/1/0.24 point-to-point
frame-relay interface-dlci 104 ppp Virtual-Template1
In both cases we ARE using frame-relay interface-dlci!
I don't know, but this doesn't make too much sense to me!
2. This is related to the first question.
frame-relay map is supposed to "disable Inv-ARP", correct?
So if we configured frame-relay map,
then we should not use frame-relay interface-dlci
However, both statements ARE being used!
Frankly, I don't understand why and how
That's not supposed to work!
3. This is not directly related to this Lab, but confusing anyway.
I know that "normally" frame-relay interface-dlci and frame-relay map
should not be used in the Interface.
However, both statements may be needed in QoS config cases,
because map-class can't be specified on a "frame-relay map" command
In cases like these, frame-relay interface-dlci is ALSO needed,
and in these cases the frame-relay map must come first.
However, in the Instructor's comments section, I read that if I had
configured
a frame-relay map, and then I configure frame-relay interface-dlci for the
same DLCI, then ALL the previous MAP statements will be erased!
Frankly, I don't get it. If I put the map first, and then the frame int,
and if frame int erases the map, then I won't have a map statement anyway.
But what if I'm not allowed to use Inv-ARP, meaning no frame int statements?
Sorry, but F/R may be quite simple for most of you, but things like these make
it really confusing for me. I hope somebody can help.
Thank you!
C. Valero.
Scott Morris <[EMAIL PROTECTED]> wrote: Yes, as pointed out on the audio CD's,
if you use both a map and the
interface-dlci command, the MAP must come first.
HTH,
-----Original Message-----
From: Suresh Mishra [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 21, 2008 4:43 PM
To: [EMAIL PROTECTED]; [email protected]
Subject: Frame-relay Interface DLCI and MAP Commands
Hello Scott,
I was listening to your audio CD. You said it is possible that we can use
frame-relay interface-dlci to apply map class for the PVCs which are
assigned using the frame-relay map command.
Do we need to worry about any kind of order when using both the commands for
the same DLCI under the same interface.
Thanks
Suresh
