From: Bob Sinclair (bsin@cox.net)
Date: Sun Jan 09 2005 - 08:56:39 GMT-3
BT,
The interval increment of 1000 makes sense for the 64K CIR, and 1500 would
make sense for combined Bc and Be, but I don't know where they are getting
the 5000 from. You might get more detail with the output of sh frame pvc
211
Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net
----- Original Message -----
From: "BT" <btng166@streamyx.com>
To: <reo@chavallos.net>; <ccielab@groupstudy.com>
Sent: Sunday, January 09, 2005 5:02 AM
Subject: Re: FRTS Details
> Hi,
>
> if I use frame-relay traffic-rate instead of frame-relay cir, I will get a
> different result.
> e.g
>
> map-class frame-relay test
>
> frame-relay traffic-rate 64000 96000
>
> frame-relay adaptive-shaping becn
>
>
>
> Spoke2#sh traffic-shape
>
>
>
> Interface Se1
>
> Access Target Byte Sustain Excess Interval Increment
> Adapt
>
> VC List Rate Limit bits/int bits/int (ms) (bytes)
> Active
>
> 211 64000 5000 64000 32000 125 1000
> BECN
>
>
>
> any idea why the byte limit is 5000 ? shouldn't it be 1500 ?
>
>
>
> rgds
>
> BT
>
>
>
> ----- Original Message -----
> From: <reo@chavallos.net>
> To: <ccielab@groupstudy.com>
> Sent: Sunday, January 09, 2005 12:50 AM
> Subject: Re: FRTS Details
>
>
>> Thanks Bob,
>> I thought before that Bc is Sustain (bit/int), and it worked for some
> cases
>> %)
>>
>> Appreciate you help
>>
>>
>> ----- Original Message -----
>> From: "Bob Sinclair" <bsin@cox.net>
>> To: <reo@chavallos.net>; <ccielab@groupstudy.com>
>> Sent: Saturday, January 08, 2005 8:05 AM
>> Subject: Re: FRTS Details
>>
>>
>> > Reo,
>> >
>> > Notice that your Byte Limit (the number of bytes that can be sent per
>> > interval) is 3000 bytes, which is 24000/8. 24000 is the Bc that
>> > results
>> > from the formula Bc= CIR * Tc (tc = 125 ms, or 1/8 of a second) in
> your
>> > case.
>> >
>> > So, it seems to me that you are in fact using the Bc defined by the
>> formula,
>> > but the show command is not reflecting this. I noticed the same output
> on
>> > recent IOS. Not sure why the change. Perhaps related to the
>> qos-autosense
>> > feature?
>> >
>> > Bob Sinclair
>> > CCIE #10427, CCSI 30427, CISSP
>> > www.netmasterclass.net
>> >
>> > ----- Original Message -----
>> > From: <reo@chavallos.net>
>> > To: <ccielab@groupstudy.com>
>> > Sent: Friday, January 07, 2005 8:14 PM
>> > Subject: FRTS Details
>> >
>> >
>> > > I'm trying to understand FRTS details.
>> > >
>> > > The main formula is Bc=CIR*Tc.
>> > >
>> > > I'm trying to set CIR only like this:
>> > > ---
>> > > map-class frame-relay DLCI-401
>> > > frame-relay cir 192000
>> > > ---
>> > >
>> > > And here's what I get
>> > > ---
>> > > #sh traffic-shape
>> > > Interface Se0/0
>> > > Access Target Byte Sustain Excess Interval Increment
>> > > Adapt
>> > > VC List Rate Limit bits/int bits/int (ms) (bytes)
>> > > Active
>> > > 401 192000 3000 192000 0 125
> 3000 -
>> > > ---
>> > >
>> > > Why formula does not work now?
>> > > Do I need to set Bc all the time?
>> > >
>> > > -R
>> > > CCIE #12944
>> > >
>> > >
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