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Cell Relay Retreat>List Archive>month:1998-Jul> msg00261



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Re: RFC1577 over ADSL

  • From: "Stefan Holmström" <qtxshol@kk.etx.ericsson.se>
  • Date: Wed, 22 Jul 1998 13:01:06 +0200

Hi,

Here are some extra info and thoughts!

1) When MTU is set to 1500 an FTP of up to 500 kbytes/sec is possible
when MTU is set to 9180 no connection is acquired.
2) ATM155 connected directly to ANx subrack
3) No extra measurement then FTP 
4) Shaping is set to 8000/800kbps

It is my suspicion that it is the buffers that are not working at the
site where the problem has occured.

Do you any good PC or Unix SW that may find where the buffer overflow
may be?? 

BR/Stefan


Kevin Fleming wrote:
> 
> >(800kbps/8Mbps), and a Win95 with Efficient 25Mbps as a client.
> 
> >
> >Works great!!!
> >Problem is I wanna reproduce a problem, when running a VoD service the
> >system will not accept MTU 9180 at all when a downsizing to MTU 1500 the
> >throughput is acceptable.
> 
> Have you throttled the ATM25 NIC to less than 800kbps and the server side to