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

[Scott Walker]

I have the nic forced to 100fdx (as the swith is 100fdx capable).

set hme:hme_adv_autoneg_cap=0          
set hme:hme_adv_100T4_cap=0
set hme:hme_adv_100fdx_cap=1
set hme:hme_adv_100hdx_cap=0
set hme:hme_adv_10fdx_cap=0
set hme:hme_adv_10hdx_cap=0

Just to make sure I commented them out again and rebooted going to check 
further.

I can't imagine it's disk i/o as nothign is running, and I mean yes, 
ata33 is slow, but it's not THAT slow.

Will McDonald wrote:

>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.
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