[SunHELP] Extremely poor network performance after OBP upgrade (and os reinstal)

[Will McDonald]

On 22/08/05, Scott Walker <crimson at unspeakable.org> wrote:
> I have an ultra 10 (440Mhz cpu, 256M of ram, 120G ide) I used to have
> linux on it, and would always get 4-5M/s across the network to it.
>
> I decided to reinstall the box and put Solaris 9 back on it.
>
> After doing a 24 hours copy test, the max network speed I can see to the
> box is 284k/s Has anyone else experinced such a dramatic loss in network
> speed after an OBP upgrade? Because I cannot imagine solaris being the
> cause of such a insane loss in speed. Any ideas?

Have you checked interface speed and duplex settings on both the Ultra
10 and the switch? You might've had some startup stuff in /etc/system
or /etc/rcN.d/ to fix speeds which were lost after the rebuild.

http://www.princeton.edu/~psg/unix/Solaris/troubleshoot/hme.html

Will.