packet pass through vs ftp -- performance weirdity

RYAN vAN GINNEKEN maillist at
Thu Sep 16 01:50:22 PDT 2004

Happened to me once needed to set the the speed of the nic card in 
rc.conf can not remember how to do it but it is in the man rc.conf page 
and solved my similar problem.  Looks something like this if i can recall

ifconfig_xl0="inet something about manually setting the 
speed and mode of the card "

for me it had to do with the card not negotiating it parameters properly 
and i had to beat it into submission with manual overrides.  glanced 
through the rc.conf man page but it is to long for me deal with right 
now the setting are in there somewhere.

Gary Aitken wrote:

> I'm seeing some weird network performance I don't understand.
> If I sit at an NT box and using a web browser, go through my fbsd 4.10
> firewall to someplace out in the world through a slow dsl connection,
> I get download speeds of 20KB - 45KB/sec, pretty much the max my DSL
> connection can deliver.
> The nt box is connected to the fbsd box over a 10Mb/sec full duplex
> crossover cable for test purposes.
> If I ftp (shell window) or use a browser to ftp from the fbsd box
> itself, I see a max speed of something like 8KB/sec.
> This makes absolutely no sense to me, given the relative speeds of the
> network connections, which I would have thought was the limiting
> factor.
> The fbsd box is a p200, 128M, single 7200rpm 9.4ms seagate ultra scsi
> drive, 10MB/sec negotiated xfr rate.  Data used for testing was ~8MB
> file in /var partition, don't know how badly fragmented.
> Is passing packets through the firewall and ipfw rules that much
> faster than an ftp access?
> Ideas for where to look for what's slowing things down?
> Thanks,
> Gary
> _______________________________________________
> freebsd-questions at mailing list
> To unsubscribe, send any mail to 
> "freebsd-questions-unsubscribe at"

More information about the freebsd-questions mailing list