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Re: Cisco PPP DS-3 limitations - 42.9Mbpbs?

  • From: Stephen J. Wilcox
  • Date: Wed Feb 20 11:10:58 2002

Hmm, reasonable explanation.. 

presumably this can be improved (a little) with increased interface
buffers.. ? and possibly non fifo queuing eg custom queuing in favour of
TCP rathen than UDP/ICMP etc which wont have the backoffs

Cheers

Steve

On Wed, 20 Feb 2002, Randy Bush wrote:

> > we run HDLC on DS3 and we max at about 40.something too
> 
> if you're using five min (or three min) samples, and you're seeing 70%,
> peaks are likely much higher and some users' packets are being dropped.
> by 80%, enough packets are being dropped that users are likely to see
> the effects of exponential backoff.  things do not improve above 80%.
> 
> randy
> 

-- 
Stephen J. Wilcox
IP Services Manager, Opal Telecom
http://www.opaltelecom.co.uk/
Tel: 0161 222 2000
Fax: 0161 222 2008





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