From: Nguyen, Thai (Thai.Nguyen@xxxxxxxxxxxxxx)
Date: Wed Jun 19 2002 - 21:00:16 GMT-3
Hi,
I am having difficulty in understanding the difference between minCIR and
CIR.
Typically minCIR is the guarantee from the service provider, so how and what
would we use to determine the CIR. Can someone shed some light.
Thank in advance.
-----Original Message-----
From: Erhan Kurt [mailto:kurt@superonline.net]
Sent: Tuesday, June 11, 2002 5:38 PM
To: Katson PN Yeung; Michael Popovich; CCIE GROUPSTUDY
Subject: RE: FRTS
For example, in voice, Tc=125 msec may cause pain :)
Never Ever Give Up,
Erhan
-----Original Message-----
From: Katson PN Yeung [mailto:kyeung@hkcix.com]
Sent: 11 Haziran 2002 Sal} 10:39
To: Erhan Kurt; Michael Popovich; CCIE GROUPSTUDY
Subject: RE: FRTS
A minor correction about "frame-relay traffic-rate" commend in the
map-class frame-relay.
After you specified traffic-rate, everything displayed will be in
bit-per-second, but internally all other values, such as Bc, Be, CIR,
mincir are still be calculated in tc=125ms.
At 03:00 PM 6/11/2002, Erhan Kurt wrote:
>Tc=Bc/CIR
>
>Look at output of time interval as an important thing in QoS.. With
>traffic-rate, you cannot specify any Tc (default=125 msec).
>
>
>-----Original Message-----
>From: Michael Popovich [mailto:m.popovich@mchsi.com]
>Sent: 09 Haziran 2002 Pazar 23:49
>To: CCIE GROUPSTUDY
>Subject: FRTS
>
>
>What is the difference between this:
>
>map-class frame-relay p2p
> frame-relay cir 400000
> frame-relay bc 8000
> no frame-relay adaptive-shaping
>
>Interface Se0/0.1
> Access Target Byte Sustain Excess Interval Increment
Adapt
>VC List Rate Limit bits/int bits/int (ms) (bytes)
>Active
>104 400000 1000 8000 0 20 1000 -
>
>and this:
>
>map-class frame-relay p2p
> frame-relay traffic-rate 400000 408000
> no frame-relay adaptive-shaping
>
>Interface Se0/0.1
> Access Target Byte Sustain Excess Interval Increment
Adapt
>VC List Rate Limit bits/int bits/int (ms) (bytes)
>Active
>104 400000 7250 400000 8000 125 6250 -
>
>
>
>I see some differences in the output but could someone explain the
>functional differences here and what impact it would have.
>
>I have been looking at some lab questions that require setting up
>traffic shaping and give you a cir and a bir value. The solution used
>the frame-relay traffic-rate under the map-class where as I was looking
>towards setting the CIR and the Bc values. I am a little confused on
>the BIR value.
>
>TIA
>
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