Full Duplex Lights

[Jason Thomas]

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okay cool.

I did an ftp from the P2-450 to the ultrasparc and got 9MB sec.
the cards are great.....

thanks everyone for clearing this up..

Mogens Kjaer [mk@crc.dk] wrote:
> Jason Thomas wrote:
> > 
> > okay i tested it using rsync and ssh with compression off and encryption
> > blowfish.
> 
> Still the encryption takes time.
> 
> Couldn't you simply do an ftp into /dev/null? Provided your server has a
> disk
> which is fast enough, or can keep the file in cache, this test gives me
> 10Mbytes/sek between machines running full duplex on a D-Link switch.
> 
> ftp server
> get bigfile.dat /dev/null
> 
> > 
> > It was faster but still only about 2M a sec.  that was beetween an ultrasparc
> > and an AMD K6-350 with scsi drives.  I transferred the same 34MB file.
> > 
> > I think the only explanation is:
> > 
> > 1) one card is using 10MB's.
> 
> You LED's on the switch will show this.
> 
> > 2) the network is really flooded.
> > 3) the machines are really loaded down. - most probable.
> > 4) bad network cables - seems to be a lot of collisions.
> 
> At least try ftp, if you don't want to play with ttcp.
> 
> Mogens
> -- 
> Mogens Kjaer, Carlsberg Laboratory, Dept. of Chemistry
> Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
> Phone: +45 33 27 53 25, Fax: +45 33 27 47 08
> Email: mk@crc.dk Homepage: http://www.crc.dk

-- 
Jason Thomas                           Phone:  +61 2 6257 7111
System Administrator                   Fax:    +61 2 6257 7311
tSA Consulting Group Pty. Ltd.         Mobile: 0418 29 66 81
1 Hall Street Lyneham ACT 2602         http://www.topic.com.au/

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