From: Michael Kilpatrick (mjkilpat@xxxxxxxxx)
Date: Mon May 13 2002 - 00:04:31 GMT-3
There are 2 distinct and separate parts of the question I think: (1) get at
least 16K, and (2) but not more than 32K. I suggest custom-queuing is the
only way to satisfy part (1).
Yijibin, your solution for part (2): "traffic-shape group 101 16000 16000
16000 1000" equates to:
CIR 16000
BC 16000 (w/TC of 1 sec)
BE 16000
This would mean traffic could bursts will not exceed 32k, which would be
correct.
My proposed solution of: "traffic-shape group 101 32000 4000 0" equates to:
CIR 32000
BC 4000 (w/TC of 125ms)
BE 0
Traffic bursts would not exceed 32k here either, the difference is the lower
TC value... which seems to me like the more desirable solution because
traffic flows more evenly.
With all that being said... I am only guessing. Please advise.... anyone?
Mike
----- Original Message -----
From: "yijibin" <yijibin@choiceway.com.cn>
To: "Michael Kilpatrick" <mjkilpat@yahoo.com>
Sent: Sunday, May 12, 2002 10:48 PM
Subject: Re: Generic Traffic Shaping - Fatkid Lab #461
> I think , the solution should like this:
> interface Serial0
> traffic-shape group 101 16000 16000 16000 1000
> access-list 101 permit tcp any any eq telnet
>
> You can not use the custom queue , it can not limit the use traffic "not
more than 32K"!
>
> ??? yijibin
> ChoiceWay Technologies Co.,Ltd
> http://www.choiceway.com.cn
> E-mail:yijibin@choiceway.com.cn
>
>
> ----- Original Message -----
> From: "Michael Kilpatrick" <mjkilpat@yahoo.com>
> To: <ccielab@groupstudy.com>
> Sent: Monday, May 13, 2002 8:43 AM
> Subject: Generic Traffic Shaping - Fatkid Lab #461
>
>
> > In Fatkid Lab #461, can someone please verify the given solution for
item #5.
> >
> > Item #5 says:
> > 5. Configure R3 so that users on the Token Ring segment get at least 16K
of
> > bandwidth, but not more than 32K, for their telnet traffic, and the
remaining
> > bandwidth for everything else.
> >
> > And the given solution is:
> > interface Serial0
> > traffic-shape group 101 16000 32000 32000 1000
> > access-list 101 permit tcp any any eq telnet
> >
> > Please correct me if I am wrong, but it seems to me that this does
nothing to
> > guarantee users get at least 16K of bandwidth. In addition, this
traffic-shape
> > command would allow bursts up to the 64k access-rate and would apply a
tc
> > interval of 2 seconds which would be very inefficient.
> >
> > I think the solution should read:
> > interface Serial 0
> > custom-queue-list 1
> > traffic-shape group 101 32000 4000 0
> > access-list 101 permit tcp any any eq telnet
> > queue-list 1 protocol ip 1 tcp telnet
> > queue-list 1 default 2
> > queue-list 1 queue 1 byte-count 100
> > queue-list 1 queue 2 byte-count 300
> >
> > Can someone please verify?
> > Thanks alot! Mike
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