Re: TCP interactions (was: Re: Linux and FreeBSD poor network performance)

2002-12-22 Thread Matthew Dillon
: :Hmm, same cables, same switch, different card, now it all works. : :I did do some ICMP ping testing with ping -f and only lost 3 :packets after letting it run for a good 10s. : : :-matt If it is working properly you should not lose *ANY* packets on an otherwise idle connection, except

Re: TCP interactions (was: Re: Linux and FreeBSD poor network performance)

2002-12-22 Thread matthew c. mead
Hmm, same cables, same switch, different card, now it all works. I did do some ICMP ping testing with ping -f and only lost 3 packets after letting it run for a good 10s. -matt On Sun, Dec 22, 2002 at 01:06:18PM -0800, Matthew Dillon wrote: > By your description, it is almost certainly a pa

Re: TCP interactions (was: Re: Linux and FreeBSD poor network performance)

2002-12-22 Thread Matthew Dillon
By your description, it is almost certainly a packet loss problem... a cabling issue or a switch issue most likely. Try doing large pings, like this, and see if you get hicups: bsdbox# ping -i 0.1 -s 3000 linuxbox -Matt

Re: TCP interactions (was: Re: Linux and FreeBSD poor network performance)

2002-12-22 Thread matthew c. mead
On Sun, Dec 22, 2002 at 10:59:52AM -0500, Robert Watson wrote: > On Sat, 21 Dec 2002, matthew c. mead wrote: > > I have a Linux box and FreeBSD box sitting on a 100Mbit ethernet segment > > that cannot seem to talk to one another faster than 150K/s. I've been > > using scp, ftp, http, to test thi

TCP interactions (was: Re: Linux and FreeBSD poor network performance)

2002-12-22 Thread Robert Watson
On Sat, 21 Dec 2002, matthew c. mead wrote: > I have a Linux box and FreeBSD box sitting on a 100Mbit ethernet segment > that cannot seem to talk to one another faster than 150K/s. I've been > using scp, ftp, http, to test this. And you've done tests in both directions, or just in one? > A Wi

Re: Linux and FreeBSD poor network performance

2002-12-21 Thread Daniel Schrock
matthew c. mead wrote: On Sun, Dec 22, 2002 at 08:16:28AM +1000, Steve Baxter wrote: Check out the duplex setting on the ethernet ports. Use 'ifconfig' and 'netstat -I dev -w 1' on FreeBSD ifconfig fxp0: fxp0: flags=8843 mtu 1500 inet 192.168.1.99 netmask 0xff00 broadcast 192.168.1.2

Re: Linux and FreeBSD poor network performance

2002-12-21 Thread matthew c. mead
Sorry to follow-up to my own message, but using a FreeBSD 4.6.2-RELEASE box with the Linux box works just fine. It uses an xl0 instead of an fxp0. I've done a sysctl -a on each box. Here's the differences. Anything look suspicious? Thanks. -matt --- sysctl Sat Dec 21 17:43:49 2002 +++

Re: Linux and FreeBSD poor network performance

2002-12-21 Thread matthew c. mead
On Sun, Dec 22, 2002 at 08:16:28AM +1000, Steve Baxter wrote: > Check out the duplex setting on the ethernet ports. Use > 'ifconfig' and 'netstat -I dev -w 1' on FreeBSD ifconfig fxp0: fxp0: flags=8843 mtu 1500 inet 192.168.1.99 netmask 0xff00 broadcast 192.168.1.255 inet6 fe8

Re: Linux and FreeBSD poor network performance

2002-12-21 Thread Steve Baxter
Check out the duplex setting on the ethernet ports. Use 'ifconfig' and 'netstat -I dev -w 1' on FreeBSD and 'ifconfig', 'mii-tool' and 'cat /proc/net/dev' on Linux Any sort of errors may lead to this sort of behaviour. You need to match the hosts to the switch port they are connected to. SB

Linux and FreeBSD poor network performance

2002-12-21 Thread matthew c. mead
I have a Linux box and FreeBSD box sitting on a 100Mbit ethernet segment that cannot seem to talk to one another faster than 150K/s. I've been using scp, ftp, http, to test this. A Windows box on the same segment can send/receive at 6MB/s with either box, but for some reason the FreeBSD box and L