From: Nick Griffin (ngriffin@sio.midco.net)
Date: Fri May 05 2006 - 14:49:44 ART
Tc, is the rate at which the router needs to send per interval in order
to reach the CIR that you define, your rate for cir is defined in bits
per second, routers think milliseconds, hence the reasoning for the Tc
and intervals. If routers sent traffic only every second, think of the
delay that would create. The default Tc is 125ms. Check out the slide below:
http://www.internetworkexpert.com/resources/01700368.htm
Mike O wrote:
> The question asks that DLCI 100 conform to the ISP's CIR of 128000
> with a port speed of 512k and the rest of the DLCI's get the remaining
> bandwidth. DLCI 100 should not burst above 128k.
>
> I'm supposed to use the lowest Tc avaiable for DLCI 100 and the rest
> should use the default Tc.
>
>
> I've never really understood the Tc.
>
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