Hi, I believe that I am encountering a similar issue with a that was reported to this mailing list earlier, without a resolution: https://sourceforge.net/p/e1000/mailman/e1000-devel/thread/9b4a1b1917080e46b64f07f2989dadd65347f...@orsmsx114.amr.corp.intel.com/
We are using a Intel X520 DP 10Gb DA/SFP+ NIC, and we were successfully capturing packets up until we installed PF_RING and rebooted the server. Immediately after reboot, we started dropping 100% of packets, so we rolled back all of our changes, and unfortunately were not able to re-establish a link to capture packets. We posted some additional details here: https://communities.intel.com/message/279791. Could someone please give us some recommendations on how to further investigate this? We have experimented with various MTU sizes, and tried disabling auto-negotiate and manually set the connection speed. We are using the the 3.19.1-k driver on Ubuntu 14.04. ifconfig em1 em1 Link encap:Ethernet HWaddr ec:f4:bb:**:**:** UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:4875 overruns:0 frame:0e TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) $dmesg | grep em1 [26103.622988] ixgbe 0000:01:00.0: removed PHC on em1 > [26119.138956] ixgbe 0000:01:00.0: registered PHC device on em1 > [26119.239959] IPv6: ADDRCONF(NETDEV_UP): em1: link is not ready > [26119.304498] ixgbe 0000:01:00.0 em1: detected SFP+: 6 ethtool -S em1 > > NIC statistics: > > rx_packets: 0 > > tx_packets: 0 > > rx_bytes: 0 > > tx_bytes: 0 > > rx_pkts_nic: 5001 > > tx_pkts_nic: 0 > > rx_bytes_nic: 3052658 > > tx_bytes_nic: 0 > > lsc_int: 0 > > tx_busy: 0 > > non_eop_descs: 0 > > rx_errors: 0 > > tx_errors: 0 > > rx_dropped: 0 > > tx_dropped: 0 > > multicast: 65 > > broadcast: 4 > > rx_no_buffer_count: 0 > > collisions: 0 > > rx_over_errors: 0 > > rx_crc_errors: 0 > > rx_frame_errors: 0 > > hw_rsc_aggregated: 0 > > hw_rsc_flushed: 0 > > fdir_match: 0 > > fdir_miss: 124 > > fdir_overflow: 0 > > rx_fifo_errors: 0 > > rx_missed_errors: 2762 > > Thank you, Jeffrey
ethtool
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