On 06/24/2011 04:05 PM, Greg Hupf wrote: > Hello John, > > Thanks for the reply. The device ID is 'E1G44ETBLK' (i.e. Intel Gigabit > ET Quad Port Server Adapter E1G44ET with the 82576 controller). We are > also having the same problem with the Intel adapters located on the > motherboard (with the 82575EB controller). > > All the packets are received correctly in promiscuous mode. But without > promiscuous mode some of the PROFINET packets are dropped (e.g. packets > from managed PROFINET switches are received correctly, but packets from > PROFINET bus couplers are dropped). > > We only seem to have this problem with Intel NICs that use the '82575/6' > controller and/or the 'igb' driver. We tried to do some investigation > using wireshark. I can provide capture files if you think it would be > helpful. Otherwise, I'll see if I can determine if it is the HW or the > stack that is dropping/filtering the packets. Thanks for the help, I > appreciate your cooperation.
If you are using the igb driver in the Linux kernel, as opposed to one you download from Intel's site, you might try this patch: http://patchwork.ozlabs.org/patch/82675/ I had to add this to my setup to get it to handle MTU sized VLAN packets when no VLANs were configured on the NIC. I'm not sure if the out-of-tree driver has the same issue or not. Note that I do not work for Intel, nor do I know a great deal about their NICs/drivers. Thanks, Ben -- Ben Greear <[email protected]> Candela Technologies Inc http://www.candelatech.com ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense.. http://p.sf.net/sfu/splunk-d2d-c1 _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
