Re: FR Traffic Shaping Question

From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Wed Nov 22 2006 - 09:17:39 ART


Hi Salman.
Thanks for congrats. :-)

I had some second thoughts regarding Be and you can probably burst up to
AIR since we are not told that we shouldn't burst at all. This I would
ask a proctor about. Otherwise it seems good enough. Or I am missing
something, seeing wrong digits etc :-)

A.

Salman Abbas wrote:
> Hi Alexi,
>
> First of all, my heartly felicitations to you on passing the lab exam.
> We are proud of you!!!!!
>
> Coming back to my question, please have a look again and confirm the
> final answer,
>
> For the question:
>
> Configure your router's interface s0 running FR for *RATE
> LIMITING*according to the following information:
>
> maximum throughput is 128kbps
> TC is 125 ms
>
> Provider will *mark any traffic in excess* of 48kbps *as* *discard
> eligible*
> Hence, *make sure throughput changes accordingly*, but based on *BECNs
> received ONLY*.
>
>
> I would do the following configuration:
>
> > map-class frame-relay FRTS
> > frame-relay cir 48000
> > frame-relay bc 6000
> > frame-relay mincir 24000 (the question asks to configure mincir, i
> forgot to mention it earlier)
> > frame-relay adaptive-shaping becn
> >
> > int s0
> bandwidth 128
> > frame-relay traffic-shaping
> > frame-relay class FRTS
>
>
>
> Thanks a bunch!!!
>
> cheers,
>
> Salman
>
> On 11/22/06, *Alexei Monastyrnyi* <alexeim@orcsoftware.com
> <mailto:alexeim@orcsoftware.com>> wrote:
>
> Your one seems to be right, but there is no explicit call for Be and
> minCIR, so I wouldn't set it up, relying on defaults.
> I would also add bandwidth 128 on inf/subinf to reflect a current AIR.
>
> Cheers,
> A.
>
> Salman Abbas wrote:
> > Hi Guys,
> >
> > Pls help in answering the following question:
> >
> > Configure your router's interface s0 running FR for *RATE
> > LIMITING*according to the following information:
> >
> > maximum throughput (AR) is 128kbps
> > TC is 125 ms
> >
> > Provider will *mark any traffic in excess* of 48kbps *as*
> *discard eligible*
> > Hence, *make sure throughput changes accordingly*, but based on
> *BECNs
> > received ONLY*.
> >
> > Now taking the information mentioned above into consideration,
> what would be
> > my:
> >
> > CIR
> > Bc
> > Be
> > mincir
> >
> > I came up with the following answer but please correct me if I'm
> wrong
> >
> > map-class frame-relay FRTS
> > frame-relay cir 48000
> > frame-relay bc 6000
> > frame-relay be 10000
> > frame-relay mincir 24000
> > frame-relay adaptive-shaping becn
> >
> > int s0
> > frame-relay traffic-shaping
> > frame-relay class FRTS
> >
> >
> > Thanks in advance,
> >
> > Cheers!!!
> >
> >
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