Re: [nsp] tx-ring-limit tuning on ATM PVC

From: Stephen Sprunk (ssprunk@cisco.com)
Date: Mon Nov 26 2001 - 13:24:59 EST


Thus spake "Francois Baligant" <francois@be.wanadoo.com>
> As anyone a mathematical method to tune the tx-ring-limit
> parameter on an ATM PVC ?
>
> Right now Im using a packet generator and checking if Im
> dropping packets with 'sh queuing int atmx/x.x' when the
> PVC is slighty full.
>
> I would like to keep the tx-ring-limit as low as possible
> to be able to do low latency queuing for some particular
> QoS class.
>
> I must pass all my traffic throught one PVC on that ATM
> sub-interface. I have applied a policy-map to the PVC
> to choose what I want to drop first of course.

http://www.cisco.com/warp/customer/121/txringlimit_6142.html

Scroll down to "Understanding Buffer Rings", and then to "When Should the
Transmit Ring Be Tuned?"

S



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