On Friday, August 05, 2011 04:28:20 PM Lars Hecking wrote: > Lars Hecking writes: > > > There are more than one NIC-model with 82599EB and evidently not all > > > work with > > > > > > the CentOS driver. What we're using successfully is X520-DA2: > > > Intel Corporation 82599EB 10-Gigabit Network Connection (rev 01) > > > > > > What do you have? > > > > http://www.intel.com/support/network/sb/cs-012904.htm > > > > PCI id 151c = X520-T2. > > Just to close this old thread: in a few months of operation, we have > repeatedly run into problems where the servers just dropped off the > network with pretty much nothing logged on the server or the switch side. > The symptoms are strikingly similar to the problem described here (Peter > K, you should have remembered :) I guess it slipped my mind since it wasn't me having the problem, heh. > http://lists.us.dell.com/pipermail/linux-poweredge/2011-March/044417.html > > and the same solution works for us - replacing the standard CentOS ixgbe > driver with the latest from Intel. Our X520 are still stable except for one recent problem, 2.6.18-238.9.1 -> 2.6.18-238.12.1 broke it quite bad. With 238.12.1 our servers start dropping all incomming packets after a while. Sanity can be (temporarily restored with a "ethtool --negotiate ethX"). We are currently running a kernel that excludes: linux-2.6-net-ixgbe-fix-for-82599-erratum-on-header-splitting.patch since that's what seems to break our setup. /Peter -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: This is a digitally signed message part. URL: <http://lists.centos.org/pipermail/centos/attachments/20110805/546ff56d/attachment-0005.sig>