From: Jim Brown (Jim.Brown@xxxxxxxxxxxxx)
Date: Mon Nov 26 2001 - 19:30:05 GMT-3
Couldn't the circuit die at one end of the PVC and all would appear normal
to the other end. How would this bring up the backup connection?
I might be wrong, I have been plenty of times in the past, but doesn't
backup interface command only monitor connectivity between the interface and
the switch. It does nothing to ensure end-to-end connectivity of the PVC.
If I have the backup command on one end and the other end has a PVC failure
between itself and the switch, the backup interface would never know the
complete PVC was down and the ISDN backup would never kick in.
The lab requirement is just probably another poorly worded statement in
terms of the desired result.
AFAIK, the backup command can only account for local failures without the
resiliency of end-to-end monitoring.
-----Original Message-----
From: Harris, Joe F [mailto:Joe_Harris@AIMFUNDS.COM]
Sent: Monday, November 26, 2001 3:17 PM
To: Jim Brown
Cc: ccielab@groupstudy.com
Subject: RE: Boot Camp Lab 20
Jim,
He is correct about using a sub-interface to backup the DLCI. Here is a link
to better get you acquainted with the feature. Hope this helps.
http://www.cisco.com/warp/public/125/19.html
-Joe Harris
CCIE# 6200
-----Original Message-----
From: Jim Brown [mailto:Jim.Brown@CaseLogic.com]
Sent: Monday, November 26, 2001 4:02 PM
To: 'Ken Snyder'; 'ccielab@groupstudy.com'
Subject: RE: Boot Camp Lab 20
The backup interface command does not address the failure of a DLCI, it only
address the failure of the interface. If the DLCI/PVC is broken, the link
will never come active.
If this were the real lab, you would lose points for the solution presented
based on the requirements.
-----Original Message-----
From: Ken Snyder [mailto:phizzog@home.com]
Sent: Monday, November 26, 2001 5:50 PM
To: 'Jim Brown'; ccielab@groupstudy.com
Subject: RE: Boot Camp Lab 20
The backup command on a Sub interface is used to meet the DLCI requirement.
I'm looking into that Authentication issue.
Regards,
-Ken
-----Original Message-----
From: Jim Brown [mailto:Jim.Brown@CaseLogic.com]
Sent: Monday, November 26, 2001 1:33 PM
To: 'Ken Snyder'; Jim Brown; ccielab@groupstudy.com
Subject: RE: Boot Camp Lab 20
How about all of the important parts of the ISDN section
There are username and passwords on both ends and one of the requirements is
authentication only one way and I see nothing in the solution configs to
support this. PPP callin maybe?
The requirement for the link to fire up if the DLCI fails? I see nothing to
support this requirement? I would probably use FREEK?
-----Original Message-----
From: Ken Snyder [mailto:phizzog@home.com]
Sent: Monday, November 26, 2001 5:25 PM
To: 'Jim Brown'; ccielab@groupstudy.com
Subject: RE: Boot Camp Lab 20
Please provide more information regarding your issue with Lab 20's ISDN.
Regards,
-Ken
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Jim
Brown
Sent: Monday, November 26, 2001 1:08 PM
To: ccielab@groupstudy.com
Subject: Boot Camp Lab 20
Has anyone looked at CCBootCamp Lab 20 solution? The ISDN requirements on
the lab are not reflected in the solution configs as far as I can tell.
I definitely don't see the one way authentication.
I'm starting to work through some of these and the errors are driving me
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