[pptp-server] question of performance ... ?

[Andrew McRory]

On Fri, 7 Jul 2000, Jean-Paul Chavant wrote:

> hello,
> 
> 
> |
> |
> |     On Fri, Jul 07, 2000 at 04:24:48PM +0200, Jean-Paul Chavant wrote:
> |     > the windowing is a good idea :) thanks.
> |     > But the question now is ... does someone know where or how to
> |     > modify/implement this fonctionnality ?
> |
> |     Simply set the pppd options mtu and mru; these are documented in the
> |     man page to pppd and can be set through /etc/ppp/options.
> |
> 
> where can i see/check the real mtu/mru size used during the communication ?
> 
> i have put in my /etc/ppp/options file these Two lines :
> 
> mtu n
> mru n
> 
> Ï ve made several tests :
> 
> default size of mtu/mru -> ~99.0Kbytes/sec.
> 
> 296 -> ftp: 9128953 bytes sent in 528.71Seconds 17.27Kbytes/sec.
> 4096 -> ftp: 9128953 bytes sent in 92.44Seconds 98.76Kbytes/sec.
> 16384 -> ftp: 9128953 bytes sent in 95.79Seconds 95.30Kbytes/sec.
> 
> which is the mximum mru/mtu size ? i cannot go over 16384 bytes ...
> 
> Why my rate is always so poor ? Why my rate is the same with same default
> size (1500) and the max size ? Does the mtu/mru size is important to have
> good rating on a clear network (10Mb switched) ? I don't understand whereis
> my problem ... :(

Have you tried "fing -f <host>" to see if/how many packets are dropped?
Maybe you have a network problem?




Andrew McRory - President/CTO      amacc at iron-bridge.net *****************
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