Re: [gentoo-server] Can someone confirm? tg3 MTU issues.

[kashani <kashani-list@badapple.net>]

Brett Curtis wrote:
> Ok, this is great. In saying that do you have any idea what I should look at?
> 
> Again same tests on any of my servers running different nics work fine
> connected to the same switch. I have the latest nic firmware from ibm... I
> guess it could be something else ibm specific?
> 
> These are the two cards I am having issues with.
> 
> Broadcom Corporation NetXtreme BCM5721
> Broadcom Corporation NetXtreme BCM5703X
> 
> I probably should have noted that seeing the tg3 supports a wide range of
> nics ..
> Could you test on a machine using one of these cards or did you already?
> 
> thanks for the response.

I'm seeing the same behavior on my Dell SC servers BCM5751 and BCM5721. 
2.6.17-gentoo-r4 in both cases. I might have a newer kernel I can try 
later. One thing to note is that both of these are PCI Express.

Oddly changing to MTU 1492 on the e1000 chips (82541GI) locks the 
interface for about 20-30 seconds before it responds again after which 
the ping -s 5000 does work. 2.6.19-gentoo-r5 on those servers and the 
Intel is PCI Express as well.

kashani

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