To Clarify, usually the DE bit is set at Half the CIR, since FR is usually
only guaranteed to half the total bandwidth, therefore, the customer can use
the total circuit, but if congestion occurs, Frames that are over half the
CIR are the first to go..
But you also have to keep in mind there are other things in place to avoid
lost data. IE BECN, FECN
-
Regards,
Michael Damkot
Technical Trainer
Network Support Engineer II
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Tony van Ree
Sent: Wednesday, August 08, 2001 3:47 PM
To: [EMAIL PROTECTED]
Subject: Re: DE bits [7:15210]
Hi all,
Put simply a DE (Discard Eligible) bit is set on anything above the CIR
(Committed Information Rate) ie if it is not committed it is discard
eligible.
At least that's the way I understand it.
Teunis,
Hobart, Tasmania
Australia
On Wednesday, August 08, 2001 at 10:06:06 AM, Brian wrote:
> I doubt the cir is set to zero, it almost certainly is set to a value
below
> the 1.5 meg value, I'd suspect 768k perhaps. Whomever is the circuit
owner
> can call the telco to find out.
>
> Brian
>
> ----- Original Message -----
> From: "Mike Mandulak"
> To:
> Sent: Tuesday, August 07, 2001 9:16 PM
> Subject: DE bits [7:15210]
>
>
> > Do discard Eligible bits (DE) get set on lines that are full T1's? The
> > circuit I'm looking at is a full T1 to one of my internet providers and
> when
> > looking at the frame stats (using cisco LMI) I see that that the cir is
> set
> > to zero which would mean that all frames leave my site with the DE bit
> set.
> > Am I misunderstanding this?
> >
> > MikeM
--
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