AIX boxes function on network, but exceedingly slow uploads

[michaelstumpf@yahoo.nospam.com]

I have a few AIX boxes (not installed from scratch, but 5.1) on two
local subnets. FTPing files from a windows box:

TO the AIX box goes 80KB/sec
FROM the AIX box goes 5-6 MB/sec

Although I'd like faster on a 100mbit network, I'd settle for fixing
the "TO the AIX box" part.

Any idea what is wrong? I've checked netstat -v, and there are no
collisions/errors. I've checked the ethernet card configurations, and
they all seem correct.

Switching ethernet cards doesn't really help, either.

Thanks in advance for advice, because I'm out of ideas.
Michael Stumpf
michaelstumpf @t yahoo d0t com

[Marrek]

Uzytkownik <michaelstumpf@yahoo.nospam.com> napisal w wiadomosci
news:lhq0nv4vpbd233cndc732dneu5ilggue21@4ax.com...

> I have a few AIX boxes (not installed from scratch, but 5.1) on two
> local subnets. FTPing files from a windows box:
>
> TO the AIX box goes 80KB/sec
> FROM the AIX box goes 5-6 MB/sec
>
> Although I'd like faster on a 100mbit network, I'd settle for fixing
> the "TO the AIX box" part.
>
> Any idea what is wrong? I've checked netstat -v, and there are no
> collisions/errors. I've checked the ethernet card configurations, and
> they all seem correct.
>
> Switching ethernet cards doesn't really help, either.
>
> Thanks in advance for advice, because I'm out of ideas.
> Michael Stumpf
> michaelstumpf @t yahoo d0t com

check adapter media_speed:

For example:
lsattr -El ent0 -a media_speed

Sometimes it is better to not use autonegotiation. Better is to set static
100Mbit/Full_Duplex and do the same on switch port configuration. It should
help.

Note: it is not possible to change media_speed of being used network adapter
although it is possible to change it on running system remotely executing
following script/commands in the "at":

/usr/sbin/ifconfig en1 down detach
/usr/sbin/ifconfig et1 down detach
/usr/sbin/chdev -l ent1 -a media_speed=100_Full_Duplex
/usr/sbin/chdev -l en1 -a state=up
/usr/sbin/mkdev -l inet0

Another soultion is to make change in database only then after reboot
media_speed will be set as required

regards,
marek.