[VLAN] MTU problem with kernel 2.4.29 and tulip driver

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Pascal DeMilly wrote:
> Thanks Ben,
> 
> Would the tulip driver patch for 2.4.19 found on your website work with 
> 2.4.29? The only reject I got is from interrupt.c. It looks like the reject 
> is due to a misalignement on the first line of that patch.

Would take manual hacking probably.  It's possible someone has already
done this...I lost a lot of list history when changing to a new server
a while back, so the archives are not available, unfortunately.

> 
> Also do you know of any way to test MTU problems. Should I just use ping with 
> a large payload?
> 

Yes, that works.

> Do you know of any way to force a Windows client to adjust its MTU 
> automatically (apart from tweaking the registry), for example an option in 
> DHCP? 

Nope..I know little of Windows hacks.

Ben


> 
> Thanks
> 
> Pascal
> 
> On Wednesday 15 March 2006 12:12, Ben Greear wrote:
> 
>>Pascal DeMilly wrote:
>>
>>>William,
>>>
>>>Thanks for answering.
>>>
>>>The problem that our VLAN users are experimenting is that when
>>>downloading or uploading large file, the connection will drop. Some users
>>>have difficulties login on their hotmail account.
>>>
>>>In the same building, we have another VLAN switch connected to an Intel
>>>board and the same machines connected to this switch, will not experience
>>>that problem.
>>>
>>>So my feeling is that it is either a problem with the card or with the
>>>tulip driver. I am currently trying to drop the MTU on some of those
>>>machines and they seem to work better.
>>>
>>>Since I am using the latest kernel 2.4.29, I am wondering if the tulip
>>>driver included is patched. Hopefully it is not an hardware problem, but
>>>I used 2 different cards, one a simple linksys and the current quad port
>>>card AEI-P430TX with the same behavior.
>>>
>>>Pascal
>>
>>I don't think the tulip patch was ever accepted by the kernel maintainers.
>>
>>My suggestion is to use an Intel chipset NIC instead.  If you need 4-port
>>adapters, you can get a 4-port Intel 10/100/1000 NIC from newegg.com for
>>around $450.
>>
>>Thanks,
>>Be
> 
> n
> 
> 
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-- 
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc  http://www.candelatech.com


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