Re: FRTS conversion

From: Fahad Khan (fahad.khan@gmail.com)
Date: Tue Jul 15 2008 - 09:08:12 ART

By default TC = 125 ms and can be 10 ms mininum, by lowering this value ,
one can have greater number of TCs with lower BC value. I think when the
question does not shed light over TC, we sould not worry about this default
value.

Plz correct me if I am wrong

Thanks and regards,
On Tue, Jul 15, 2008 at 4:57 AM, GAURAV MADAN <gauravmadan1177@gmail.com>
wrote:

> HI All
>
> Can someone Please clearify on Tc stuff as well .
> Bc = Tc * CIR .. The example that Roger mentioned ; he has considered
> the Tc as 125 msec .
>
> Can someone please clearify under what conditions can we safely assume
> this value ?
>
> Thnx in advance
> Gaurav Madan.
>
> On Tue, Jul 15, 2008 at 4:19 PM, Roger RPF <rpf@bluemail.ch> wrote:
> > Hi group,
> >
> > I need some confidence in FRTS with an example. I know it is a "hot
> > discussed" topic and I catched a lot from all the discussions, but I'm
> still
> > not 100% certain about "my calculation". Below a task which I tried to
> solve
> > with FRTS and CB-Traffic shaping.
> >
> > The task is: Target transmission rate is 512Kbps but I'm allowed to burst
> up
> > to port speed (1.5Mbps = AR = 1536000).
> >
> > So with FRTS I would do:
> >
> > map-class frame-relay shape
> > frame-relay cir 512000 (target rate)
> > frame-relay bc 64000 (CIR/Tc)
> > frame-relay be 128000 (Ar/Tc - Bc)
> >
> > So the same stuff with Class Based shaping:
> >
> > policy-map shape
> > class class-default
> > shape peak 512000 64000 128000 (calculation is the same as with FRTS)
> >
> >
> > _______________________________________________________________________
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>
>
> _______________________________________________________________________
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>
>
>
>
> 

-- 
*FAHAD KHAN

BE Computer Systems NED,

CCNA,CCDA,CCNP,FOUNDFE,CLSE,QOS,JNCIA,JNCIS,MCP,CCIE (Written)

Systems Support Engineer, Premier Systems (Pvt) limited,

Karachi, Pakistan

92-321-2370510.*

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