From: Schulz, Dave (DSchulz@dpsciences.com)
Date: Thu Jun 01 2006 - 10:09:23 ART
Petr -
Looking over the link on the frame, how would it even be possible to set
the DE bit on the LMI frame. Wouldn't only the user data frame be
subject to the DE inclusively?
Dave Schulz,
Email: dschulz@dpsciences.com <mailto:dschulz@dpsciences.com%20>
________________________________
From: Petr Lapukhov [mailto:petrsoft@gmail.com]
Sent: Thursday, June 01, 2006 9:06 AM
To: swm@emanon.com
Cc: Schulz, Dave; marvingreenlee@yahoo.com; chrlewiscsco@gmail.com;
koen@koenzeilstra.com; ccielab@groupstudy.com
Subject: Re: frame-relay fragment & exclude voice pakkets from being
fragmente
Surely setting DE with LMI DCLI is kind of weird idea :)
I just made that by accident, trying to play with DE bit in various
scenarios :)
LMI frame actually does not have congestion control field, so what
I saw, is that FR switch silently discards "DE-marked" LMI
enquiry frames, regardless of LMI type being in use :)
Petr
2006/6/1, Scott Morris <swm@emanon.com>:
While this is true.... LMI is local for your router and frame switch,
and
sent on it's own DLCI with nothing else. IF your link/frame switch is
so
congested that it thinks it's a good idea to drop LMI, I'd consider
getting
a new provider.
While technically that's accurate, there is no good reason for that to
occur.
Just my thoughts.
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713,
JNCIE
#153, CISSP, et al.
CCSI/JNCI
IPExpert CCIE Program Manager
IPExpert Sr. Technical Instructor
smorris@ipexpert.com
http://www.ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Petr
Lapukhov
Sent: Thursday, June 01, 2006 7:06 AM
To: Schulz, Dave
Cc: marvingreenlee@yahoo.com; chrlewiscsco@gmail.com;
koen@koenzeilstra.com;
ccielab@groupstudy.com
Subject: Re: frame-relay fragment & exclude voice pakkets from being
fragmente
Dave,
check out FR frame formats at
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/frame.htm#wp102
0669
LMI frame does not include "congestion" control fields. But it seems
that
this does not stop IOS from punching DE bit into LMI frames :)
You can try it for yourself with simple MQC config :)
Petr
2006/6/1, Schulz, Dave <DSchulz@dpsciences.com >:
>
> How would setting the de bit lead to breaking the LMI?
>
> Dave Schulz
> *** Sent from my Blackberry ***
>
>
> -----Original Message-----
> From: Petr Lapukhov < petrsoft@gmail.com>
> To: Marvin Greenlee <marvingreenlee@yahoo.com>
> CC: Schulz, Dave < DSchulz@dpsciences.com
<mailto:DSchulz@dpsciences.com> >; Chris Lewis <
> chrlewiscsco@gmail.com>; Koen Zeilstra <koen@koenzeilstra.com>;
> ccielab@groupstudy.com <ccielab@groupstudy.com>
> Sent: Thu Jun 01 01:08:52 2006
> Subject: Re: frame-relay fragment & exclude voice pakkets from being
> fragmente
>
> Marvin,
>
> I remember times when I put "set fr-de" in class-default, and allplied
> that policy to physical interface. That surely killed LMI :)
>
> Petr
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