Friday, June 15, 2012 9:03 PM
We have Dell M910's with the Intel X520 cards and jumbo frames does not appear to be working, or at least through the 8024-K switches in the blade chassis. This was working fine with the Server 8 beta. At first I though it was something with the new teaming feature, but if I take a single NIC and set it to use 9014 jumbo frames, I am unable to ping -f -l 8000 to an older Server 8 beta server on another blade in same chassis, through the same switch. Is any one else seeing this behavior with jumbo frames in general or with the X520 cards? Also, there doesn't appear to be an Intel driver for this card yet for 2012.
Saturday, June 16, 2012 1:03 AM
After some further testing, it appears the problem is related to fragmentation or MTU. If I disable Jumbo Frames and try to ping -l 2000 with no -f switch, it still doesn't work. There is clearly a problem with this version of the driver for the Intel cards. We also have Broadcom cards in these same M910's and they do not have any problems with fragmentation or jumbo frames. I can ping -f -l 9999 all day long...
If there is anyone else out there that has the X520 cards in any of the dell blades or servers, can you please test and confirm you are seeing a the same problem?
Thursday, June 21, 2012 5:11 PMAnyone with any thoughts on this?
Wednesday, August 01, 2012 1:06 PMI have the same problem. Did you find any solution?
Friday, August 03, 2012 9:47 PMWe ended up injecting the driver from the previous Beta build and this at least is getting us connectivity. Guess we wait until 8-15 so we can pull the RTM code down from MSDN.
Wednesday, August 08, 2012 12:06 PM
You can download a version of drivers for Windows 8 and Windows 2012 from here http://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=21642
I hope this could help you!
Wednesday, August 08, 2012 4:15 PMWe checked WinUpdate again the other day, and they have the new Intel drivers on there. They work!! Thanks!!