[Beowulf] tcp error: Need ideas!

Gerry Creager gerry.creager at tamu.edu
Sun Jan 25 15:30:02 EST 2009


Scott Atchley wrote:
> On Jan 25, 2009, at 10:13 AM, Gerry Creager wrote:
> 
>> -bash-3.2# ethtool -K rx off
>> no offload settings changed
> 
> You missed the interface here. You should try:
> 
> -bash-3.2# ethtool -K eth1 rx off

Yeah.  Too much morning. Not enough coffee.  Back to it.
gerry

>> -bash-3.2# ethtool -k eth1
>> Offload parameters for eth1:
>> rx-checksumming: on
>> tx-checksumming: on
>> scatter-gather: on
>> tcp segmentation offload: on
>> udp fragmentation offload: off
>> generic segmentation offload: off
>>
>> But here's the one I love:
>> -bash-3.2# ethtool -K tso off
>> no offload settings changed
> 
> Again, you are missing the interface:
> 
> -bash-3.2# ethtool -K eth1 tso off
> 
>> I apparently can't control things with ethtool...
> 
> Ethtool provides -S to let the driver report additional information. 
> Does this report anything:
> 
> # ethtool -S eth1
> 
> Scott

-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
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