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    2.1.1/2.1.2 - Unable to connect LAN from power off without firewall reboot

    Scheduled Pinned Locked Moved General pfSense Questions
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    • E
      ESPNSTI
      last edited by

      I have tried a few more things.
      While being unable to connect with my main desktop and having it set up with a static IP:

      • I stopped all services (using status\services).

      • I disabled all the block/reject rules on the LAN interface.
        The only ones there were pfBlocker reject rules.
        The firewall log was not showing any LAN rejects.

      • Reloaded filters (using Status\Filter Reload)

      • Reset states (using Diagnostics\Sates)

      • Killed of a number of processes that were killable (using "kill" in Diagnostics\Command Prompt)

      After this, I still was unable to ping my main desktop either from pfSense or from another PC.
      After a pfSense reboot however, it connected just fine.

      1 Reply Last reply Reply Quote 0
      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        Rogue DHCP server on your LAN? Can cause odd symptoms like this. Especially as a delay is involved. Is it of the order of your DHCP lease time?
        Doesn't explain why a static IP doesn't work though. Some other local IP conflict then perhaps a rogue device with the same IP as the pfSense LAN or your device.

        Try running a packet capture on LAN to see if your pings are arriving or responses being sent.

        Steve

        Edit: Typo, rogue not rouge!

        1 Reply Last reply Reply Quote 0
        • E
          ESPNSTI
          last edited by

          Thanks for the suggestions.

          I would think that being unable to connect while having a static IP would eliminate any sort of DHCP problem (like you said).
          The two other devices that could have DHCP servers running, my NAS and WAP have them both disabled, and the problem still occurs with them off.
          I have my devices set up with static leases, including the main PC.
          The lease time for the DHCP server on pfSense is left at the defaults, which is 2 hours I think.
          When the PC is connected, the DHCP logs show a DHCPREQUEST once an hour, and a DHCPINFORM and DHCPACK once every 10 minutes.
          I haven't quite figured out the exact threshold is for this problem to occur, but I think it is somewhere past 4 hours after powering off a PC.
          I hadn't kept track of exact times between power off and power on, but I have started doing that now.
          So far, the longest time between power off and power on and still being able to connect has been 3 hours and 40 minutes, but I don't have a lot of data yet.

          An IP conflict/rogue device is an interesting thought, however I have a limited set of devices (about a half dozen or so) and most are set up with static DHCP leases (half of them are usually off).
          The only ones that don't have static IPs are devices that are connecting to the wireless access point, and I almost never have the WAP on.
          And virtual machines on the main PC itself, which is a rare occurrence as well.

          When this first started, I did try a packet capture on the LAN interface on pfSense before, while pinging from the PC.
          It showed no traffic for the relevant address in the capture.
          However, that has been a while ago, I will try that again next time.

          1 Reply Last reply Reply Quote 0
          • E
            ESPNSTI
            last edited by

            More information:

            This time I checked "disable all packet filtering" in "System: Advanced: Firewall and NAT" after being unable to connect.
            It did not make a difference, I still couldn't connect.
            FYI, the time the PC was powered off this time was 5 hours.

            However, I re-ran packet captures (with "disable all packet filtering" back to unchecked I think), and I must have done it incorrectly last time, since it showed some traffic this time:

            • On the LAN/BRIDGE0 bridge interface, it shows ARP broadcast requests from the main PC and ARP replies from pfSense LAN/BRIDGE0 to the main PC

            • On the OPT2/em2 interface that the main PC is connected to, it only shows ARP broadcast requests from the main PC, but no replies.

            So for some reason pfSense is able to direct the OPT2/em2 ARP broadcast to LAN/BRIDGE0, but it doesn't  forward the ARP reply from LAN/BRIDGE0 to OPT2/em2.

            I did run a ping from another PC to pfSense to confirm that ARP replies do normally show up on the specific OPT/em interface, and it shows that normally they do.

            FYI, in case it is relevant for this, in "System: Advanced: System Tunables", I have all the settings set at their defaults, except "net.link.bridge.pfil_member" is set to 0 and "net.link.bridge.pfil_bridge" is set to 1.

            1 Reply Last reply Reply Quote 0
            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Hmm. If you run ifconfig at the console do the bridge member interfaces show as 'promiscuous mode'?

              Why are arp replies from LAN not appearing on OPT2? Perhaps because the bridge device thinks it has a route the main PC via some other interface? Maybe try packet captures on other bridge members to see if replies are ending up on the wrong interface. Just speculation.  ;)

              Steve

              1 Reply Last reply Reply Quote 0
              • E
                ESPNSTI
                last edited by

                The first post shows output from ifconfig, it shows PROMISC in the interfaces flags of the bridge member interfaces.
                I will re-run it next time to make sure.

                I will run package captures on the other interfaces next time to see if the replies end up elsewhere.

                Thanks for the suggestions.

                1 Reply Last reply Reply Quote 0
                • E
                  ESPNSTI
                  last edited by

                  Packet captures on other interfaces don't show the missing ARP replies.

                  I re-ran ifconfig, and it shows the same info as in the first post.

                  However, I had success coaxing the connection back to life without a reboot.

                  I ran "ifconfig em2 down" and "ifconfig em2 up" and I think that got it going again.
                  However, I am not 100% sure, since I also played around with "ifconfig em2 -promisc" and "ifconfig em2 promisc", but nothing seemed to happen when I ran those.

                  Edit:
                  Tried it on a different PC, and it's the "ifconfig em3 up" after the "ifconfig em3 down" that does it.

                  Here is the log, I ran the ifconfig commands at 07:22:09 and 07:22:13.
                  It came back to life shortly after 07:22:13.

                  Apr 21 07:22:19 	php: rc.newwanip: Interface does not have an IP address, nothing to do.
Apr 21 07:22:19 	php: rc.newwanip: rc.newwanip: Informational is starting em3.
Apr 21 07:22:16 	check_reload_status: rc.newwanip starting em3
Apr 21 07:22:15 	php: rc.linkup: Hotplug event detected for OPT3(opt3) but ignoring since interface is configured with static IP ( )
Apr 21 07:22:13 	php: rc.linkup: Hotplug event detected for OPT3(opt3) but ignoring since interface is configured with static IP ( )
Apr 21 07:22:13 	check_reload_status: Linkup starting em3
Apr 21 07:22:13 	kernel: em3: link state changed to UP
Apr 21 07:22:09 	kernel: em3: link state changed to DOWN
Apr 21 07:22:09 	check_reload_status: Linkup starting em3
Apr 21 07:20:05 	php: rc.newwanip: Interface does not have an IP address, nothing to do.
Apr 21 07:20:05 	php: rc.newwanip: rc.newwanip: Informational is starting em3.
Apr 21 07:20:01 	check_reload_status: rc.newwanip starting em3
Apr 21 07:20:00 	php: rc.linkup: Hotplug event detected for OPT3(opt3) but ignoring since interface is configured with static IP ( )
Apr 21 07:19:57 	kernel: em3: link state changed to UP
Apr 21 07:19:57 	check_reload_status: Linkup starting em3
                  1 Reply Last reply Reply Quote 0
                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    Hmm, interesting. I wonder why the interface stops responding yet nothing in the logs.  :-
                    Can you bring the interface back by unplugging and re-plugging the cable?

                    Steve

                    1 Reply Last reply Reply Quote 0
                    • E
                      ESPNSTI
                      last edited by

                      When I tried it in the past, unplugging and re-plugging the cable didn't make a difference, neither did switching to a different port.
                      I will try that again though next time.

                      I am wondering if it's not some sort of sleep or power saving mode that is enabled in the 2.1.1 nic driver that isn't in 2.1.0 (if such a thing exists)?
                      I haven't narrowed down the exact time threshold, but it seems consistent somewhere between 4 and 5 hours, so maybe it's some sort of sleep time setting (although I would think that would be much shorter).

                      1 Reply Last reply Reply Quote 0
                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        Good question. The em drivers were updated for 2.1.1 so that's a distinct possibility. What are the actual chips in the NICs you have? Anything relevant in hw.em? This looks a likely suspect:

                        [2.1.2-RELEASE][root@pfsense.fire.box]/root(3): sysctl hw.em.smart_pwr_down
hw.em.smart_pwr_down: 0

                        Anything suspect in dev.em?

                        Steve

                        1 Reply Last reply Reply Quote 0
                        • E
                          ESPNSTI
                          last edited by

                          The nics are all Intel 82574L.

                          $ sysctl hw.em
hw.em.num_queues: 0
hw.em.eee_setting: 1
hw.em.rx_process_limit: 100
hw.em.enable_msix: 1
hw.em.sbp: 0
hw.em.smart_pwr_down: 0
hw.em.txd: 1024
hw.em.rxd: 1024
hw.em.rx_abs_int_delay: 66
hw.em.tx_abs_int_delay: 66
hw.em.rx_int_delay: 0
hw.em.tx_int_delay: 66

                          $ sysctl dev.em
dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.0.%driver: em
dev.em.0.%location: slot=0 function=0
dev.em.0.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.0.%parent: pci5
dev.em.0.nvm: -1
dev.em.0.debug: -1
dev.em.0.fc: 3
dev.em.0.rx_int_delay: 0
dev.em.0.tx_int_delay: 66
dev.em.0.rx_abs_int_delay: 66
dev.em.0.tx_abs_int_delay: 66
dev.em.0.itr: 488
dev.em.0.rx_processing_limit: 100
dev.em.0.eee_control: 1
dev.em.0.link_irq: 3
dev.em.0.mbuf_alloc_fail: 0
dev.em.0.cluster_alloc_fail: 0
dev.em.0.dropped: 0
dev.em.0.tx_dma_fail: 0
dev.em.0.rx_overruns: 0
dev.em.0.watchdog_timeouts: 0
dev.em.0.device_control: 1074790984
dev.em.0.rx_control: 67141658
dev.em.0.fc_high_water: 18432
dev.em.0.fc_low_water: 16932
dev.em.0.queue0.txd_head: 66
dev.em.0.queue0.txd_tail: 66
dev.em.0.queue0.tx_irq: 1332941
dev.em.0.queue0.no_desc_avail: 0
dev.em.0.queue0.rxd_head: 543
dev.em.0.queue0.rxd_tail: 542
dev.em.0.queue0.rx_irq: 2110549
dev.em.0.mac_stats.excess_coll: 0
dev.em.0.mac_stats.single_coll: 0
dev.em.0.mac_stats.multiple_coll: 0
dev.em.0.mac_stats.late_coll: 0
dev.em.0.mac_stats.collision_count: 0
dev.em.0.mac_stats.symbol_errors: 0
dev.em.0.mac_stats.sequence_errors: 0
dev.em.0.mac_stats.defer_count: 0
dev.em.0.mac_stats.missed_packets: 0
dev.em.0.mac_stats.recv_no_buff: 0
dev.em.0.mac_stats.recv_undersize: 0
dev.em.0.mac_stats.recv_fragmented: 0
dev.em.0.mac_stats.recv_oversize: 14
dev.em.0.mac_stats.recv_jabber: 0
dev.em.0.mac_stats.recv_errs: 1
dev.em.0.mac_stats.crc_errs: 1616
dev.em.0.mac_stats.alignment_errs: 0
dev.em.0.mac_stats.coll_ext_errs: 0
dev.em.0.mac_stats.xon_recvd: 0
dev.em.0.mac_stats.xon_txd: 0
dev.em.0.mac_stats.xoff_recvd: 0
dev.em.0.mac_stats.xoff_txd: 0
dev.em.0.mac_stats.total_pkts_recvd: 2601085
dev.em.0.mac_stats.good_pkts_recvd: 2599455
dev.em.0.mac_stats.bcast_pkts_recvd: 86896
dev.em.0.mac_stats.mcast_pkts_recvd: 144132
dev.em.0.mac_stats.rx_frames_64: 207244
dev.em.0.mac_stats.rx_frames_65_127: 839440
dev.em.0.mac_stats.rx_frames_128_255: 225214
dev.em.0.mac_stats.rx_frames_256_511: 121557
dev.em.0.mac_stats.rx_frames_512_1023: 43046
dev.em.0.mac_stats.rx_frames_1024_1522: 1162954
dev.em.0.mac_stats.good_octets_recvd: 1925347696
dev.em.0.mac_stats.good_octets_txd: 265656113
dev.em.0.mac_stats.total_pkts_txd: 2281444
dev.em.0.mac_stats.good_pkts_txd: 2281444
dev.em.0.mac_stats.bcast_pkts_txd: 19
dev.em.0.mac_stats.mcast_pkts_txd: 5
dev.em.0.mac_stats.tx_frames_64: 401078
dev.em.0.mac_stats.tx_frames_65_127: 1682199
dev.em.0.mac_stats.tx_frames_128_255: 59450
dev.em.0.mac_stats.tx_frames_256_511: 57767
dev.em.0.mac_stats.tx_frames_512_1023: 37172
dev.em.0.mac_stats.tx_frames_1024_1522: 43778
dev.em.0.mac_stats.tso_txd: 0
dev.em.0.mac_stats.tso_ctx_fail: 0
dev.em.0.interrupts.asserts: 5
dev.em.0.interrupts.rx_pkt_timer: 0
dev.em.0.interrupts.rx_abs_timer: 0
dev.em.0.interrupts.tx_pkt_timer: 0
dev.em.0.interrupts.tx_abs_timer: 0
dev.em.0.interrupts.tx_queue_empty: 0
dev.em.0.interrupts.tx_queue_min_thresh: 0
dev.em.0.interrupts.rx_desc_min_thresh: 0
dev.em.0.interrupts.rx_overrun: 0
dev.em.1.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.1.%driver: em
dev.em.1.%location: slot=0 function=0
dev.em.1.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.1.%parent: pci6
dev.em.1.nvm: -1
dev.em.1.debug: -1
dev.em.1.fc: 3
dev.em.1.rx_int_delay: 0
dev.em.1.tx_int_delay: 66
dev.em.1.rx_abs_int_delay: 66
dev.em.1.tx_abs_int_delay: 66
dev.em.1.itr: 488
dev.em.1.rx_processing_limit: 100
dev.em.1.eee_control: 1
dev.em.1.link_irq: 13
dev.em.1.mbuf_alloc_fail: 0
dev.em.1.cluster_alloc_fail: 0
dev.em.1.dropped: 0
dev.em.1.tx_dma_fail: 0
dev.em.1.rx_overruns: 0
dev.em.1.watchdog_timeouts: 0
dev.em.1.device_control: 1477444168
dev.em.1.rx_control: 67141658
dev.em.1.fc_high_water: 18432
dev.em.1.fc_low_water: 16932
dev.em.1.queue0.txd_head: 829
dev.em.1.queue0.txd_tail: 829
dev.em.1.queue0.tx_irq: 1680542
dev.em.1.queue0.no_desc_avail: 0
dev.em.1.queue0.rxd_head: 18
dev.em.1.queue0.rxd_tail: 17
dev.em.1.queue0.rx_irq: 1377586
dev.em.1.mac_stats.excess_coll: 0
dev.em.1.mac_stats.single_coll: 0
dev.em.1.mac_stats.multiple_coll: 0
dev.em.1.mac_stats.late_coll: 0
dev.em.1.mac_stats.collision_count: 0
dev.em.1.mac_stats.symbol_errors: 0
dev.em.1.mac_stats.sequence_errors: 0
dev.em.1.mac_stats.defer_count: 0
dev.em.1.mac_stats.missed_packets: 0
dev.em.1.mac_stats.recv_no_buff: 0
dev.em.1.mac_stats.recv_undersize: 0
dev.em.1.mac_stats.recv_fragmented: 0
dev.em.1.mac_stats.recv_oversize: 0
dev.em.1.mac_stats.recv_jabber: 0
dev.em.1.mac_stats.recv_errs: 0
dev.em.1.mac_stats.crc_errs: 0
dev.em.1.mac_stats.alignment_errs: 0
dev.em.1.mac_stats.coll_ext_errs: 0
dev.em.1.mac_stats.xon_recvd: 0
dev.em.1.mac_stats.xon_txd: 0
dev.em.1.mac_stats.xoff_recvd: 0
dev.em.1.mac_stats.xoff_txd: 0
dev.em.1.mac_stats.total_pkts_recvd: 6054930
dev.em.1.mac_stats.good_pkts_recvd: 6054930
dev.em.1.mac_stats.bcast_pkts_recvd: 814
dev.em.1.mac_stats.mcast_pkts_recvd: 18
dev.em.1.mac_stats.rx_frames_64: 3394973
dev.em.1.mac_stats.rx_frames_65_127: 1581197
dev.em.1.mac_stats.rx_frames_128_255: 145932
dev.em.1.mac_stats.rx_frames_256_511: 68688
dev.em.1.mac_stats.rx_frames_512_1023: 57308
dev.em.1.mac_stats.rx_frames_1024_1522: 806832
dev.em.1.mac_stats.good_octets_recvd: 1643667828
dev.em.1.mac_stats.good_octets_txd: 10924986586
dev.em.1.mac_stats.total_pkts_txd: 8607743
dev.em.1.mac_stats.good_pkts_txd: 8607743
dev.em.1.mac_stats.bcast_pkts_txd: 16764
dev.em.1.mac_stats.mcast_pkts_txd: 8128
dev.em.1.mac_stats.tx_frames_64: 435053
dev.em.1.mac_stats.tx_frames_65_127: 621579
dev.em.1.mac_stats.tx_frames_128_255: 326492
dev.em.1.mac_stats.tx_frames_256_511: 104439
dev.em.1.mac_stats.tx_frames_512_1023: 44603
dev.em.1.mac_stats.tx_frames_1024_1522: 7075577
dev.em.1.mac_stats.tso_txd: 0
dev.em.1.mac_stats.tso_ctx_fail: 0
dev.em.1.interrupts.asserts: 7
dev.em.1.interrupts.rx_pkt_timer: 0
dev.em.1.interrupts.rx_abs_timer: 0
dev.em.1.interrupts.tx_pkt_timer: 0
dev.em.1.interrupts.tx_abs_timer: 0
dev.em.1.interrupts.tx_queue_empty: 0
dev.em.1.interrupts.tx_queue_min_thresh: 0
dev.em.1.interrupts.rx_desc_min_thresh: 0
dev.em.1.interrupts.rx_overrun: 0
dev.em.2.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.2.%driver: em
dev.em.2.%location: slot=0 function=0
dev.em.2.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.2.%parent: pci10
dev.em.2.nvm: -1
dev.em.2.debug: -1
dev.em.2.fc: 3
dev.em.2.rx_int_delay: 0
dev.em.2.tx_int_delay: 66
dev.em.2.rx_abs_int_delay: 66
dev.em.2.tx_abs_int_delay: 66
dev.em.2.itr: 488
dev.em.2.rx_processing_limit: 100
dev.em.2.eee_control: 1
dev.em.2.link_irq: 57
dev.em.2.mbuf_alloc_fail: 0
dev.em.2.cluster_alloc_fail: 0
dev.em.2.dropped: 0
dev.em.2.tx_dma_fail: 0
dev.em.2.rx_overruns: 0
dev.em.2.watchdog_timeouts: 0
dev.em.2.device_control: 1074790984
dev.em.2.rx_control: 67141658
dev.em.2.fc_high_water: 18432
dev.em.2.fc_low_water: 16932
dev.em.2.queue0.txd_head: 475
dev.em.2.queue0.txd_tail: 475
dev.em.2.queue0.tx_irq: 1314386
dev.em.2.queue0.no_desc_avail: 4
dev.em.2.queue0.rxd_head: 565
dev.em.2.queue0.rxd_tail: 564
dev.em.2.queue0.rx_irq: 1025355
dev.em.2.mac_stats.excess_coll: 0
dev.em.2.mac_stats.single_coll: 0
dev.em.2.mac_stats.multiple_coll: 0
dev.em.2.mac_stats.late_coll: 0
dev.em.2.mac_stats.collision_count: 0
dev.em.2.mac_stats.symbol_errors: 0
dev.em.2.mac_stats.sequence_errors: 0
dev.em.2.mac_stats.defer_count: 0
dev.em.2.mac_stats.missed_packets: 0
dev.em.2.mac_stats.recv_no_buff: 0
dev.em.2.mac_stats.recv_undersize: 0
dev.em.2.mac_stats.recv_fragmented: 0
dev.em.2.mac_stats.recv_oversize: 0
dev.em.2.mac_stats.recv_jabber: 0
dev.em.2.mac_stats.recv_errs: 0
dev.em.2.mac_stats.crc_errs: 0
dev.em.2.mac_stats.alignment_errs: 0
dev.em.2.mac_stats.coll_ext_errs: 0
dev.em.2.mac_stats.xon_recvd: 0
dev.em.2.mac_stats.xon_txd: 67
dev.em.2.mac_stats.xoff_recvd: 0
dev.em.2.mac_stats.xoff_txd: 67
dev.em.2.mac_stats.total_pkts_recvd: 7579284
dev.em.2.mac_stats.good_pkts_recvd: 7579284
dev.em.2.mac_stats.bcast_pkts_recvd: 4056
dev.em.2.mac_stats.mcast_pkts_recvd: 1894
dev.em.2.mac_stats.rx_frames_64: 732927
dev.em.2.mac_stats.rx_frames_65_127: 127308
dev.em.2.mac_stats.rx_frames_128_255: 236522
dev.em.2.mac_stats.rx_frames_256_511: 32858
dev.em.2.mac_stats.rx_frames_512_1023: 70604
dev.em.2.mac_stats.rx_frames_1024_1522: 6379065
dev.em.2.mac_stats.good_octets_recvd: 9847640417
dev.em.2.mac_stats.good_octets_txd: 2161810275
dev.em.2.mac_stats.total_pkts_txd: 5162048
dev.em.2.mac_stats.good_pkts_txd: 5161914
dev.em.2.mac_stats.bcast_pkts_txd: 5818
dev.em.2.mac_stats.mcast_pkts_txd: 3845
dev.em.2.mac_stats.tx_frames_64: 3311268
dev.em.2.mac_stats.tx_frames_65_127: 402284
dev.em.2.mac_stats.tx_frames_128_255: 129308
dev.em.2.mac_stats.tx_frames_256_511: 25539
dev.em.2.mac_stats.tx_frames_512_1023: 92406
dev.em.2.mac_stats.tx_frames_1024_1522: 1201109
dev.em.2.mac_stats.tso_txd: 0
dev.em.2.mac_stats.tso_ctx_fail: 0
dev.em.2.interrupts.asserts: 36
dev.em.2.interrupts.rx_pkt_timer: 0
dev.em.2.interrupts.rx_abs_timer: 0
dev.em.2.interrupts.tx_pkt_timer: 0
dev.em.2.interrupts.tx_abs_timer: 0
dev.em.2.interrupts.tx_queue_empty: 0
dev.em.2.interrupts.tx_queue_min_thresh: 0
dev.em.2.interrupts.rx_desc_min_thresh: 0
dev.em.2.interrupts.rx_overrun: 0
dev.em.3.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.3.%driver: em
dev.em.3.%location: slot=0 function=0
dev.em.3.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.3.%parent: pci11
dev.em.3.nvm: -1
dev.em.3.debug: -1
dev.em.3.fc: 3
dev.em.3.rx_int_delay: 0
dev.em.3.tx_int_delay: 66
dev.em.3.rx_abs_int_delay: 66
dev.em.3.tx_abs_int_delay: 66
dev.em.3.itr: 488
dev.em.3.rx_processing_limit: 100
dev.em.3.eee_control: 1
dev.em.3.link_irq: 13
dev.em.3.mbuf_alloc_fail: 0
dev.em.3.cluster_alloc_fail: 0
dev.em.3.dropped: 0
dev.em.3.tx_dma_fail: 0
dev.em.3.rx_overruns: 0
dev.em.3.watchdog_timeouts: 0
dev.em.3.device_control: 1074790984
dev.em.3.rx_control: 67141658
dev.em.3.fc_high_water: 18432
dev.em.3.fc_low_water: 16932
dev.em.3.queue0.txd_head: 386
dev.em.3.queue0.txd_tail: 386
dev.em.3.queue0.tx_irq: 276
dev.em.3.queue0.no_desc_avail: 0
dev.em.3.queue0.rxd_head: 218
dev.em.3.queue0.rxd_tail: 217
dev.em.3.queue0.rx_irq: 978
dev.em.3.mac_stats.excess_coll: 0
dev.em.3.mac_stats.single_coll: 0
dev.em.3.mac_stats.multiple_coll: 0
dev.em.3.mac_stats.late_coll: 0
dev.em.3.mac_stats.collision_count: 0
dev.em.3.mac_stats.symbol_errors: 0
dev.em.3.mac_stats.sequence_errors: 0
dev.em.3.mac_stats.defer_count: 0
dev.em.3.mac_stats.missed_packets: 0
dev.em.3.mac_stats.recv_no_buff: 0
dev.em.3.mac_stats.recv_undersize: 0
dev.em.3.mac_stats.recv_fragmented: 0
dev.em.3.mac_stats.recv_oversize: 0
dev.em.3.mac_stats.recv_jabber: 0
dev.em.3.mac_stats.recv_errs: 0
dev.em.3.mac_stats.crc_errs: 0
dev.em.3.mac_stats.alignment_errs: 0
dev.em.3.mac_stats.coll_ext_errs: 0
dev.em.3.mac_stats.xon_recvd: 0
dev.em.3.mac_stats.xon_txd: 0
dev.em.3.mac_stats.xoff_recvd: 0
dev.em.3.mac_stats.xoff_txd: 0
dev.em.3.mac_stats.total_pkts_recvd: 979
dev.em.3.mac_stats.good_pkts_recvd: 979
dev.em.3.mac_stats.bcast_pkts_recvd: 616
dev.em.3.mac_stats.mcast_pkts_recvd: 158
dev.em.3.mac_stats.rx_frames_64: 63
dev.em.3.mac_stats.rx_frames_65_127: 163
dev.em.3.mac_stats.rx_frames_128_255: 112
dev.em.3.mac_stats.rx_frames_256_511: 641
dev.em.3.mac_stats.rx_frames_512_1023: 0
dev.em.3.mac_stats.rx_frames_1024_1522: 0
dev.em.3.mac_stats.good_octets_recvd: 255346
dev.em.3.mac_stats.good_octets_txd: 55615
dev.em.3.mac_stats.total_pkts_txd: 303
dev.em.3.mac_stats.good_pkts_txd: 303
dev.em.3.mac_stats.bcast_pkts_txd: 79
dev.em.3.mac_stats.mcast_pkts_txd: 32
dev.em.3.mac_stats.tx_frames_64: 32
dev.em.3.mac_stats.tx_frames_65_127: 229
dev.em.3.mac_stats.tx_frames_128_255: 9
dev.em.3.mac_stats.tx_frames_256_511: 14
dev.em.3.mac_stats.tx_frames_512_1023: 1
dev.em.3.mac_stats.tx_frames_1024_1522: 18
dev.em.3.mac_stats.tso_txd: 0
dev.em.3.mac_stats.tso_ctx_fail: 0
dev.em.3.interrupts.asserts: 9
dev.em.3.interrupts.rx_pkt_timer: 0
dev.em.3.interrupts.rx_abs_timer: 0
dev.em.3.interrupts.tx_pkt_timer: 0
dev.em.3.interrupts.tx_abs_timer: 0
dev.em.3.interrupts.tx_queue_empty: 0
dev.em.3.interrupts.tx_queue_min_thresh: 0
dev.em.3.interrupts.rx_desc_min_thresh: 0
dev.em.3.interrupts.rx_overrun: 0
dev.em.4.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.4.%driver: em
dev.em.4.%location: slot=0 function=0
dev.em.4.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.4.%parent: pci15
dev.em.4.nvm: -1
dev.em.4.debug: -1
dev.em.4.fc: 3
dev.em.4.rx_int_delay: 0
dev.em.4.tx_int_delay: 66
dev.em.4.rx_abs_int_delay: 66
dev.em.4.tx_abs_int_delay: 66
dev.em.4.itr: 488
dev.em.4.rx_processing_limit: 100
dev.em.4.eee_control: 1
dev.em.4.link_irq: 0
dev.em.4.mbuf_alloc_fail: 0
dev.em.4.cluster_alloc_fail: 0
dev.em.4.dropped: 0
dev.em.4.tx_dma_fail: 0
dev.em.4.rx_overruns: 0
dev.em.4.watchdog_timeouts: 0
dev.em.4.device_control: 1074790984
dev.em.4.rx_control: 67141658
dev.em.4.fc_high_water: 18432
dev.em.4.fc_low_water: 16932
dev.em.4.queue0.txd_head: 0
dev.em.4.queue0.txd_tail: 0
dev.em.4.queue0.tx_irq: 0
dev.em.4.queue0.no_desc_avail: 0
dev.em.4.queue0.rxd_head: 0
dev.em.4.queue0.rxd_tail: 1023
dev.em.4.queue0.rx_irq: 0
dev.em.4.mac_stats.excess_coll: 0
dev.em.4.mac_stats.single_coll: 0
dev.em.4.mac_stats.multiple_coll: 0
dev.em.4.mac_stats.late_coll: 0
dev.em.4.mac_stats.collision_count: 0
dev.em.4.mac_stats.symbol_errors: 0
dev.em.4.mac_stats.sequence_errors: 0
dev.em.4.mac_stats.defer_count: 0
dev.em.4.mac_stats.missed_packets: 0
dev.em.4.mac_stats.recv_no_buff: 0
dev.em.4.mac_stats.recv_undersize: 0
dev.em.4.mac_stats.recv_fragmented: 0
dev.em.4.mac_stats.recv_oversize: 0
dev.em.4.mac_stats.recv_jabber: 0
dev.em.4.mac_stats.recv_errs: 0
dev.em.4.mac_stats.crc_errs: 0
dev.em.4.mac_stats.alignment_errs: 0
dev.em.4.mac_stats.coll_ext_errs: 0
dev.em.4.mac_stats.xon_recvd: 0
dev.em.4.mac_stats.xon_txd: 0
dev.em.4.mac_stats.xoff_recvd: 0
dev.em.4.mac_stats.xoff_txd: 0
dev.em.4.mac_stats.total_pkts_recvd: 0
dev.em.4.mac_stats.good_pkts_recvd: 0
dev.em.4.mac_stats.bcast_pkts_recvd: 0
dev.em.4.mac_stats.mcast_pkts_recvd: 0
dev.em.4.mac_stats.rx_frames_64: 0
dev.em.4.mac_stats.rx_frames_65_127: 0
dev.em.4.mac_stats.rx_frames_128_255: 0
dev.em.4.mac_stats.rx_frames_256_511: 0
dev.em.4.mac_stats.rx_frames_512_1023: 0
dev.em.4.mac_stats.rx_frames_1024_1522: 0
dev.em.4.mac_stats.good_octets_recvd: 0
dev.em.4.mac_stats.good_octets_txd: 0
dev.em.4.mac_stats.total_pkts_txd: 0
dev.em.4.mac_stats.good_pkts_txd: 0
dev.em.4.mac_stats.bcast_pkts_txd: 0
dev.em.4.mac_stats.mcast_pkts_txd: 0
dev.em.4.mac_stats.tx_frames_64: 0
dev.em.4.mac_stats.tx_frames_65_127: 0
dev.em.4.mac_stats.tx_frames_128_255: 0
dev.em.4.mac_stats.tx_frames_256_511: 0
dev.em.4.mac_stats.tx_frames_512_1023: 0
dev.em.4.mac_stats.tx_frames_1024_1522: 0
dev.em.4.mac_stats.tso_txd: 0
dev.em.4.mac_stats.tso_ctx_fail: 0
dev.em.4.interrupts.asserts: 0
dev.em.4.interrupts.rx_pkt_timer: 0
dev.em.4.interrupts.rx_abs_timer: 0
dev.em.4.interrupts.tx_pkt_timer: 0
dev.em.4.interrupts.tx_abs_timer: 0
dev.em.4.interrupts.tx_queue_empty: 0
dev.em.4.interrupts.tx_queue_min_thresh: 0
dev.em.4.interrupts.rx_desc_min_thresh: 0
dev.em.4.interrupts.rx_overrun: 0
dev.em.5.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.5.%driver: em
dev.em.5.%location: slot=0 function=0
dev.em.5.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.5.%parent: pci16
dev.em.5.nvm: -1
dev.em.5.debug: -1
dev.em.5.fc: 3
dev.em.5.rx_int_delay: 0
dev.em.5.tx_int_delay: 66
dev.em.5.rx_abs_int_delay: 66
dev.em.5.tx_abs_int_delay: 66
dev.em.5.itr: 488
dev.em.5.rx_processing_limit: 100
dev.em.5.eee_control: 1
dev.em.5.link_irq: 14
dev.em.5.mbuf_alloc_fail: 0
dev.em.5.cluster_alloc_fail: 0
dev.em.5.dropped: 0
dev.em.5.tx_dma_fail: 0
dev.em.5.rx_overruns: 0
dev.em.5.watchdog_timeouts: 0
dev.em.5.device_control: 1477444168
dev.em.5.rx_control: 67141658
dev.em.5.fc_high_water: 18432
dev.em.5.fc_low_water: 16932
dev.em.5.queue0.txd_head: 1015
dev.em.5.queue0.txd_tail: 1015
dev.em.5.queue0.tx_irq: 31244
dev.em.5.queue0.no_desc_avail: 0
dev.em.5.queue0.rxd_head: 771
dev.em.5.queue0.rxd_tail: 770
dev.em.5.queue0.rx_irq: 29384
dev.em.5.mac_stats.excess_coll: 0
dev.em.5.mac_stats.single_coll: 0
dev.em.5.mac_stats.multiple_coll: 0
dev.em.5.mac_stats.late_coll: 0
dev.em.5.mac_stats.collision_count: 0
dev.em.5.mac_stats.symbol_errors: 0
dev.em.5.mac_stats.sequence_errors: 0
dev.em.5.mac_stats.defer_count: 0
dev.em.5.mac_stats.missed_packets: 0
dev.em.5.mac_stats.recv_no_buff: 0
dev.em.5.mac_stats.recv_undersize: 0
dev.em.5.mac_stats.recv_fragmented: 0
dev.em.5.mac_stats.recv_oversize: 0
dev.em.5.mac_stats.recv_jabber: 0
dev.em.5.mac_stats.recv_errs: 0
dev.em.5.mac_stats.crc_errs: 0
dev.em.5.mac_stats.alignment_errs: 0
dev.em.5.mac_stats.coll_ext_errs: 0
dev.em.5.mac_stats.xon_recvd: 0
dev.em.5.mac_stats.xon_txd: 0
dev.em.5.mac_stats.xoff_recvd: 0
dev.em.5.mac_stats.xoff_txd: 0
dev.em.5.mac_stats.total_pkts_recvd: 29443
dev.em.5.mac_stats.good_pkts_recvd: 29443
dev.em.5.mac_stats.bcast_pkts_recvd: 10091
dev.em.5.mac_stats.mcast_pkts_recvd: 6055
dev.em.5.mac_stats.rx_frames_64: 10733
dev.em.5.mac_stats.rx_frames_65_127: 10674
dev.em.5.mac_stats.rx_frames_128_255: 408
dev.em.5.mac_stats.rx_frames_256_511: 6155
dev.em.5.mac_stats.rx_frames_512_1023: 409
dev.em.5.mac_stats.rx_frames_1024_1522: 1064
dev.em.5.mac_stats.good_octets_recvd: 5941407
dev.em.5.mac_stats.good_octets_txd: 5567151
dev.em.5.mac_stats.total_pkts_txd: 31914
dev.em.5.mac_stats.good_pkts_txd: 31914
dev.em.5.mac_stats.bcast_pkts_txd: 7475
dev.em.5.mac_stats.mcast_pkts_txd: 2087
dev.em.5.mac_stats.tx_frames_64: 14358
dev.em.5.mac_stats.tx_frames_65_127: 13797
dev.em.5.mac_stats.tx_frames_128_255: 790
dev.em.5.mac_stats.tx_frames_256_511: 681
dev.em.5.mac_stats.tx_frames_512_1023: 274
dev.em.5.mac_stats.tx_frames_1024_1522: 2014
dev.em.5.mac_stats.tso_txd: 0
dev.em.5.mac_stats.tso_ctx_fail: 0
dev.em.5.interrupts.asserts: 9
dev.em.5.interrupts.rx_pkt_timer: 0
dev.em.5.interrupts.rx_abs_timer: 0
dev.em.5.interrupts.tx_pkt_timer: 0
dev.em.5.interrupts.tx_abs_timer: 0
dev.em.5.interrupts.tx_queue_empty: 0
dev.em.5.interrupts.tx_queue_min_thresh: 0
dev.em.5.interrupts.rx_desc_min_thresh: 0
dev.em.5.interrupts.rx_overrun: 0
dev.em.6.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.6.%driver: em
dev.em.6.%location: slot=0 function=0
dev.em.6.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.6.%parent: pci17
dev.em.6.nvm: -1
dev.em.6.debug: -1
dev.em.6.fc: 3
dev.em.6.rx_int_delay: 0
dev.em.6.tx_int_delay: 66
dev.em.6.rx_abs_int_delay: 66
dev.em.6.tx_abs_int_delay: 66
dev.em.6.itr: 488
dev.em.6.rx_processing_limit: 100
dev.em.6.eee_control: 1
dev.em.6.link_irq: 17
dev.em.6.mbuf_alloc_fail: 0
dev.em.6.cluster_alloc_fail: 0
dev.em.6.dropped: 0
dev.em.6.tx_dma_fail: 0
dev.em.6.rx_overruns: 0
dev.em.6.watchdog_timeouts: 0
dev.em.6.device_control: 1477444168
dev.em.6.rx_control: 67141658
dev.em.6.fc_high_water: 18432
dev.em.6.fc_low_water: 16932
dev.em.6.queue0.txd_head: 817
dev.em.6.queue0.txd_tail: 817
dev.em.6.queue0.tx_irq: 81780
dev.em.6.queue0.no_desc_avail: 0
dev.em.6.queue0.rxd_head: 348
dev.em.6.queue0.rxd_tail: 347
dev.em.6.queue0.rx_irq: 36669
dev.em.6.mac_stats.excess_coll: 0
dev.em.6.mac_stats.single_coll: 0
dev.em.6.mac_stats.multiple_coll: 0
dev.em.6.mac_stats.late_coll: 0
dev.em.6.mac_stats.collision_count: 0
dev.em.6.mac_stats.symbol_errors: 0
dev.em.6.mac_stats.sequence_errors: 0
dev.em.6.mac_stats.defer_count: 0
dev.em.6.mac_stats.missed_packets: 0
dev.em.6.mac_stats.recv_no_buff: 0
dev.em.6.mac_stats.recv_undersize: 0
dev.em.6.mac_stats.recv_fragmented: 0
dev.em.6.mac_stats.recv_oversize: 0
dev.em.6.mac_stats.recv_jabber: 0
dev.em.6.mac_stats.recv_errs: 0
dev.em.6.mac_stats.crc_errs: 0
dev.em.6.mac_stats.alignment_errs: 0
dev.em.6.mac_stats.coll_ext_errs: 0
dev.em.6.mac_stats.xon_recvd: 0
dev.em.6.mac_stats.xon_txd: 0
dev.em.6.mac_stats.xoff_recvd: 0
dev.em.6.mac_stats.xoff_txd: 0
dev.em.6.mac_stats.total_pkts_recvd: 40284
dev.em.6.mac_stats.good_pkts_recvd: 40284
dev.em.6.mac_stats.bcast_pkts_recvd: 420
dev.em.6.mac_stats.mcast_pkts_recvd: 376
dev.em.6.mac_stats.rx_frames_64: 28074
dev.em.6.mac_stats.rx_frames_65_127: 8076
dev.em.6.mac_stats.rx_frames_128_255: 927
dev.em.6.mac_stats.rx_frames_256_511: 800
dev.em.6.mac_stats.rx_frames_512_1023: 843
dev.em.6.mac_stats.rx_frames_1024_1522: 1564
dev.em.6.mac_stats.good_octets_recvd: 5925684
dev.em.6.mac_stats.good_octets_txd: 87073020
dev.em.6.mac_stats.total_pkts_txd: 88589
dev.em.6.mac_stats.good_pkts_txd: 88589
dev.em.6.mac_stats.bcast_pkts_txd: 17191
dev.em.6.mac_stats.mcast_pkts_txd: 7828
dev.em.6.mac_stats.tx_frames_64: 15737
dev.em.6.mac_stats.tx_frames_65_127: 8968
dev.em.6.mac_stats.tx_frames_128_255: 2483
dev.em.6.mac_stats.tx_frames_256_511: 6989
dev.em.6.mac_stats.tx_frames_512_1023: 704
dev.em.6.mac_stats.tx_frames_1024_1522: 53708
dev.em.6.mac_stats.tso_txd: 0
dev.em.6.mac_stats.tso_ctx_fail: 0
dev.em.6.interrupts.asserts: 11
dev.em.6.interrupts.rx_pkt_timer: 0
dev.em.6.interrupts.rx_abs_timer: 0
dev.em.6.interrupts.tx_pkt_timer: 0
dev.em.6.interrupts.tx_abs_timer: 0
dev.em.6.interrupts.tx_queue_empty: 0
dev.em.6.interrupts.tx_queue_min_thresh: 0
dev.em.6.interrupts.rx_desc_min_thresh: 0
dev.em.6.interrupts.rx_overrun: 0
dev.em.7.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.7.%driver: em
dev.em.7.%location: slot=0 function=0
dev.em.7.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.7.%parent: pci18
dev.em.7.nvm: -1
dev.em.7.debug: -1
dev.em.7.fc: 3
dev.em.7.rx_int_delay: 0
dev.em.7.tx_int_delay: 66
dev.em.7.rx_abs_int_delay: 66
dev.em.7.tx_abs_int_delay: 66
dev.em.7.itr: 488
dev.em.7.rx_processing_limit: 100
dev.em.7.eee_control: 1
dev.em.7.link_irq: 0
dev.em.7.mbuf_alloc_fail: 0
dev.em.7.cluster_alloc_fail: 0
dev.em.7.dropped: 0
dev.em.7.tx_dma_fail: 0
dev.em.7.rx_overruns: 0
dev.em.7.watchdog_timeouts: 0
dev.em.7.device_control: 1074790984
dev.em.7.rx_control: 67141658
dev.em.7.fc_high_water: 18432
dev.em.7.fc_low_water: 16932
dev.em.7.queue0.txd_head: 0
dev.em.7.queue0.txd_tail: 0
dev.em.7.queue0.tx_irq: 0
dev.em.7.queue0.no_desc_avail: 0
dev.em.7.queue0.rxd_head: 0
dev.em.7.queue0.rxd_tail: 1023
dev.em.7.queue0.rx_irq: 0
dev.em.7.mac_stats.excess_coll: 0
dev.em.7.mac_stats.single_coll: 0
dev.em.7.mac_stats.multiple_coll: 0
dev.em.7.mac_stats.late_coll: 0
dev.em.7.mac_stats.collision_count: 0
dev.em.7.mac_stats.symbol_errors: 0
dev.em.7.mac_stats.sequence_errors: 0
dev.em.7.mac_stats.defer_count: 0
dev.em.7.mac_stats.missed_packets: 0
dev.em.7.mac_stats.recv_no_buff: 0
dev.em.7.mac_stats.recv_undersize: 0
dev.em.7.mac_stats.recv_fragmented: 0
dev.em.7.mac_stats.recv_oversize: 0
dev.em.7.mac_stats.recv_jabber: 0
dev.em.7.mac_stats.recv_errs: 0
dev.em.7.mac_stats.crc_errs: 0
dev.em.7.mac_stats.alignment_errs: 0
dev.em.7.mac_stats.coll_ext_errs: 0
dev.em.7.mac_stats.xon_recvd: 0
dev.em.7.mac_stats.xon_txd: 0
dev.em.7.mac_stats.xoff_recvd: 0
dev.em.7.mac_stats.xoff_txd: 0
dev.em.7.mac_stats.total_pkts_recvd: 0
dev.em.7.mac_stats.good_pkts_recvd: 0
dev.em.7.mac_stats.bcast_pkts_recvd: 0
dev.em.7.mac_stats.mcast_pkts_recvd: 0
dev.em.7.mac_stats.rx_frames_64: 0
dev.em.7.mac_stats.rx_frames_65_127: 0
dev.em.7.mac_stats.rx_frames_128_255: 0
dev.em.7.mac_stats.rx_frames_256_511: 0
dev.em.7.mac_stats.rx_frames_512_1023: 0
dev.em.7.mac_stats.rx_frames_1024_1522: 0
dev.em.7.mac_stats.good_octets_recvd: 0
dev.em.7.mac_stats.good_octets_txd: 0
dev.em.7.mac_stats.total_pkts_txd: 0
dev.em.7.mac_stats.good_pkts_txd: 0
dev.em.7.mac_stats.bcast_pkts_txd: 0
dev.em.7.mac_stats.mcast_pkts_txd: 0
dev.em.7.mac_stats.tx_frames_64: 0
dev.em.7.mac_stats.tx_frames_65_127: 0
dev.em.7.mac_stats.tx_frames_128_255: 0
dev.em.7.mac_stats.tx_frames_256_511: 0
dev.em.7.mac_stats.tx_frames_512_1023: 0
dev.em.7.mac_stats.tx_frames_1024_1522: 0
dev.em.7.mac_stats.tso_txd: 0
dev.em.7.mac_stats.tso_ctx_fail: 0
dev.em.7.interrupts.asserts: 0
dev.em.7.interrupts.rx_pkt_timer: 0
dev.em.7.interrupts.rx_abs_timer: 0
dev.em.7.interrupts.tx_pkt_timer: 0
dev.em.7.interrupts.tx_abs_timer: 0
dev.em.7.interrupts.tx_queue_empty: 0
dev.em.7.interrupts.tx_queue_min_thresh: 0
dev.em.7.interrupts.rx_desc_min_thresh: 0
dev.em.7.interrupts.rx_overrun: 0

                          I'm not sure what to watch for.
                          FYI, this was not taken while the problem was occurring.

                          1 Reply Last reply Reply Quote 0
                          • stephenw10S
                            stephenw10 Netgate Administrator
                            last edited by

                            Hmm, very common NIC so should be reported if it was a driver issue.
                            You have a lot of CRC errors on em0. Which interface is giving trouble?
                            Try to get a set of data when it's stopped responding.

                            Steve

                            1 Reply Last reply Reply Quote 0
                            • E
                              ESPNSTI
                              last edited by

                              The nic may be common, but perhaps not a lot of people use pfsense the way I do?
                              Meaning, directly connecting PCs to the pfSense box rather than having a switch in the middle, in combination with completely unplugging the PC rather than leaving it powered off, but not unplugged.

                              My main PC is connected to em2, but I have reproduced the problem with it connected to other interfaces and with other PCs on other interfaces.

                              My WAN interface is em0, which is connected using WiMAX, don't  know if that explains the number of CRC errors or not.

                              I will try to get dev.em data the next time the problem happens.

                              Edit:

                              I tried unplugging and re-plugging the connection, that does not seem to solve the problem, but ifconfig em2 down followed by ifconfig em2 up does.

                              Here is the dev.em data while the problem happens:

                              $ sysctl dev.em
dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.0.%driver: em
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dev.em.1.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
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dev.em.2.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
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dev.em.3.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
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dev.em.4.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
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dev.em.5.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.5.%driver: em
dev.em.5.%location: slot=0 function=0
dev.em.5.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.5.%parent: pci16
dev.em.5.nvm: -1
dev.em.5.debug: -1
dev.em.5.fc: 3
dev.em.5.rx_int_delay: 0
dev.em.5.tx_int_delay: 66
dev.em.5.rx_abs_int_delay: 66
dev.em.5.tx_abs_int_delay: 66
dev.em.5.itr: 488
dev.em.5.rx_processing_limit: 100
dev.em.5.eee_control: 1
dev.em.5.link_irq: 14
dev.em.5.mbuf_alloc_fail: 0
dev.em.5.cluster_alloc_fail: 0
dev.em.5.dropped: 0
dev.em.5.tx_dma_fail: 0
dev.em.5.rx_overruns: 0
dev.em.5.watchdog_timeouts: 0
dev.em.5.device_control: 1477444168
dev.em.5.rx_control: 67141658
dev.em.5.fc_high_water: 18432
dev.em.5.fc_low_water: 16932
dev.em.5.queue0.txd_head: 118
dev.em.5.queue0.txd_tail: 118
dev.em.5.queue0.tx_irq: 35021
dev.em.5.queue0.no_desc_avail: 0
dev.em.5.queue0.rxd_head: 813
dev.em.5.queue0.rxd_tail: 812
dev.em.5.queue0.rx_irq: 33522
dev.em.5.mac_stats.excess_coll: 0
dev.em.5.mac_stats.single_coll: 0
dev.em.5.mac_stats.multiple_coll: 0
dev.em.5.mac_stats.late_coll: 0
dev.em.5.mac_stats.collision_count: 0
dev.em.5.mac_stats.symbol_errors: 0
dev.em.5.mac_stats.sequence_errors: 0
dev.em.5.mac_stats.defer_count: 0
dev.em.5.mac_stats.missed_packets: 0
dev.em.5.mac_stats.recv_no_buff: 0
dev.em.5.mac_stats.recv_undersize: 0
dev.em.5.mac_stats.recv_fragmented: 0
dev.em.5.mac_stats.recv_oversize: 0
dev.em.5.mac_stats.recv_jabber: 0
dev.em.5.mac_stats.recv_errs: 0
dev.em.5.mac_stats.crc_errs: 0
dev.em.5.mac_stats.alignment_errs: 0
dev.em.5.mac_stats.coll_ext_errs: 0
dev.em.5.mac_stats.xon_recvd: 0
dev.em.5.mac_stats.xon_txd: 0
dev.em.5.mac_stats.xoff_recvd: 0
dev.em.5.mac_stats.xoff_txd: 0
dev.em.5.mac_stats.total_pkts_recvd: 33581
dev.em.5.mac_stats.good_pkts_recvd: 33581
dev.em.5.mac_stats.bcast_pkts_recvd: 13190
dev.em.5.mac_stats.mcast_pkts_recvd: 6958
dev.em.5.mac_stats.rx_frames_64: 13832
dev.em.5.mac_stats.rx_frames_65_127: 10806
dev.em.5.mac_stats.rx_frames_128_255: 408
dev.em.5.mac_stats.rx_frames_256_511: 7058
dev.em.5.mac_stats.rx_frames_512_1023: 413
dev.em.5.mac_stats.rx_frames_1024_1522: 1064
dev.em.5.mac_stats.good_octets_recvd: 6533199
dev.em.5.mac_stats.good_octets_txd: 5861382
dev.em.5.mac_stats.total_pkts_txd: 35811
dev.em.5.mac_stats.good_pkts_txd: 35811
dev.em.5.mac_stats.bcast_pkts_txd: 8074
dev.em.5.mac_stats.mcast_pkts_txd: 2154
dev.em.5.mac_stats.tx_frames_64: 17797
dev.em.5.mac_stats.tx_frames_65_127: 14125
dev.em.5.mac_stats.tx_frames_128_255: 859
dev.em.5.mac_stats.tx_frames_256_511: 716
dev.em.5.mac_stats.tx_frames_512_1023: 294
dev.em.5.mac_stats.tx_frames_1024_1522: 2020
dev.em.5.mac_stats.tso_txd: 0
dev.em.5.mac_stats.tso_ctx_fail: 0
dev.em.5.interrupts.asserts: 9
dev.em.5.interrupts.rx_pkt_timer: 0
dev.em.5.interrupts.rx_abs_timer: 0
dev.em.5.interrupts.tx_pkt_timer: 0
dev.em.5.interrupts.tx_abs_timer: 0
dev.em.5.interrupts.tx_queue_empty: 0
dev.em.5.interrupts.tx_queue_min_thresh: 0
dev.em.5.interrupts.rx_desc_min_thresh: 0
dev.em.5.interrupts.rx_overrun: 0
dev.em.6.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.6.%driver: em
dev.em.6.%location: slot=0 function=0
dev.em.6.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.6.%parent: pci17
dev.em.6.nvm: -1
dev.em.6.debug: -1
dev.em.6.fc: 3
dev.em.6.rx_int_delay: 0
dev.em.6.tx_int_delay: 66
dev.em.6.rx_abs_int_delay: 66
dev.em.6.tx_abs_int_delay: 66
dev.em.6.itr: 488
dev.em.6.rx_processing_limit: 100
dev.em.6.eee_control: 1
dev.em.6.link_irq: 22
dev.em.6.mbuf_alloc_fail: 0
dev.em.6.cluster_alloc_fail: 0
dev.em.6.dropped: 0
dev.em.6.tx_dma_fail: 0
dev.em.6.rx_overruns: 0
dev.em.6.watchdog_timeouts: 0
dev.em.6.device_control: 1477444168
dev.em.6.rx_control: 67141658
dev.em.6.fc_high_water: 18432
dev.em.6.fc_low_water: 16932
dev.em.6.queue0.txd_head: 172
dev.em.6.queue0.txd_tail: 172
dev.em.6.queue0.tx_irq: 86612
dev.em.6.queue0.no_desc_avail: 0
dev.em.6.queue0.rxd_head: 886
dev.em.6.queue0.rxd_tail: 885
dev.em.6.queue0.rx_irq: 37129
dev.em.6.mac_stats.excess_coll: 0
dev.em.6.mac_stats.single_coll: 0
dev.em.6.mac_stats.multiple_coll: 0
dev.em.6.mac_stats.late_coll: 0
dev.em.6.mac_stats.collision_count: 0
dev.em.6.mac_stats.symbol_errors: 0
dev.em.6.mac_stats.sequence_errors: 0
dev.em.6.mac_stats.defer_count: 0
dev.em.6.mac_stats.missed_packets: 0
dev.em.6.mac_stats.recv_no_buff: 0
dev.em.6.mac_stats.recv_undersize: 0
dev.em.6.mac_stats.recv_fragmented: 0
dev.em.6.mac_stats.recv_oversize: 0
dev.em.6.mac_stats.recv_jabber: 0
dev.em.6.mac_stats.recv_errs: 0
dev.em.6.mac_stats.crc_errs: 0
dev.em.6.mac_stats.alignment_errs: 0
dev.em.6.mac_stats.coll_ext_errs: 0
dev.em.6.mac_stats.xon_recvd: 0
dev.em.6.mac_stats.xon_txd: 0
dev.em.6.mac_stats.xoff_recvd: 0
dev.em.6.mac_stats.xoff_txd: 0
dev.em.6.mac_stats.total_pkts_recvd: 40822
dev.em.6.mac_stats.good_pkts_recvd: 40822
dev.em.6.mac_stats.bcast_pkts_recvd: 538
dev.em.6.mac_stats.mcast_pkts_recvd: 445
dev.em.6.mac_stats.rx_frames_64: 28322
dev.em.6.mac_stats.rx_frames_65_127: 8188
dev.em.6.mac_stats.rx_frames_128_255: 966
dev.em.6.mac_stats.rx_frames_256_511: 818
dev.em.6.mac_stats.rx_frames_512_1023: 957
dev.em.6.mac_stats.rx_frames_1024_1522: 1571
dev.em.6.mac_stats.good_octets_recvd: 6040146
dev.em.6.mac_stats.good_octets_txd: 88048854
dev.em.6.mac_stats.total_pkts_txd: 93690
dev.em.6.mac_stats.good_pkts_txd: 93690
dev.em.6.mac_stats.bcast_pkts_txd: 20785
dev.em.6.mac_stats.mcast_pkts_txd: 8747
dev.em.6.mac_stats.tx_frames_64: 19296
dev.em.6.mac_stats.tx_frames_65_127: 9220
dev.em.6.mac_stats.tx_frames_128_255: 2549
dev.em.6.mac_stats.tx_frames_256_511: 7998
dev.em.6.mac_stats.tx_frames_512_1023: 746
dev.em.6.mac_stats.tx_frames_1024_1522: 53881
dev.em.6.mac_stats.tso_txd: 0
dev.em.6.mac_stats.tso_ctx_fail: 0
dev.em.6.interrupts.asserts: 14
dev.em.6.interrupts.rx_pkt_timer: 0
dev.em.6.interrupts.rx_abs_timer: 0
dev.em.6.interrupts.tx_pkt_timer: 0
dev.em.6.interrupts.tx_abs_timer: 0
dev.em.6.interrupts.tx_queue_empty: 0
dev.em.6.interrupts.tx_queue_min_thresh: 0
dev.em.6.interrupts.rx_desc_min_thresh: 0
dev.em.6.interrupts.rx_overrun: 0
dev.em.7.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.7.%driver: em
dev.em.7.%location: slot=0 function=0
dev.em.7.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.7.%parent: pci18
dev.em.7.nvm: -1
dev.em.7.debug: -1
dev.em.7.fc: 3
dev.em.7.rx_int_delay: 0
dev.em.7.tx_int_delay: 66
dev.em.7.rx_abs_int_delay: 66
dev.em.7.tx_abs_int_delay: 66
dev.em.7.itr: 488
dev.em.7.rx_processing_limit: 100
dev.em.7.eee_control: 1
dev.em.7.link_irq: 0
dev.em.7.mbuf_alloc_fail: 0
dev.em.7.cluster_alloc_fail: 0
dev.em.7.dropped: 0
dev.em.7.tx_dma_fail: 0
dev.em.7.rx_overruns: 0
dev.em.7.watchdog_timeouts: 0
dev.em.7.device_control: 1074790984
dev.em.7.rx_control: 67141658
dev.em.7.fc_high_water: 18432
dev.em.7.fc_low_water: 16932
dev.em.7.queue0.txd_head: 0
dev.em.7.queue0.txd_tail: 0
dev.em.7.queue0.tx_irq: 0
dev.em.7.queue0.no_desc_avail: 0
dev.em.7.queue0.rxd_head: 0
dev.em.7.queue0.rxd_tail: 1023
dev.em.7.queue0.rx_irq: 0
dev.em.7.mac_stats.excess_coll: 0
dev.em.7.mac_stats.single_coll: 0
dev.em.7.mac_stats.multiple_coll: 0
dev.em.7.mac_stats.late_coll: 0
dev.em.7.mac_stats.collision_count: 0
dev.em.7.mac_stats.symbol_errors: 0
dev.em.7.mac_stats.sequence_errors: 0
dev.em.7.mac_stats.defer_count: 0
dev.em.7.mac_stats.missed_packets: 0
dev.em.7.mac_stats.recv_no_buff: 0
dev.em.7.mac_stats.recv_undersize: 0
dev.em.7.mac_stats.recv_fragmented: 0
dev.em.7.mac_stats.recv_oversize: 0
dev.em.7.mac_stats.recv_jabber: 0
dev.em.7.mac_stats.recv_errs: 0
dev.em.7.mac_stats.crc_errs: 0
dev.em.7.mac_stats.alignment_errs: 0
dev.em.7.mac_stats.coll_ext_errs: 0
dev.em.7.mac_stats.xon_recvd: 0
dev.em.7.mac_stats.xon_txd: 0
dev.em.7.mac_stats.xoff_recvd: 0
dev.em.7.mac_stats.xoff_txd: 0
dev.em.7.mac_stats.total_pkts_recvd: 0
dev.em.7.mac_stats.good_pkts_recvd: 0
dev.em.7.mac_stats.bcast_pkts_recvd: 0
dev.em.7.mac_stats.mcast_pkts_recvd: 0
dev.em.7.mac_stats.rx_frames_64: 0
dev.em.7.mac_stats.rx_frames_65_127: 0
dev.em.7.mac_stats.rx_frames_128_255: 0
dev.em.7.mac_stats.rx_frames_256_511: 0
dev.em.7.mac_stats.rx_frames_512_1023: 0
dev.em.7.mac_stats.rx_frames_1024_1522: 0
dev.em.7.mac_stats.good_octets_recvd: 0
dev.em.7.mac_stats.good_octets_txd: 0
dev.em.7.mac_stats.total_pkts_txd: 0
dev.em.7.mac_stats.good_pkts_txd: 0
dev.em.7.mac_stats.bcast_pkts_txd: 0
dev.em.7.mac_stats.mcast_pkts_txd: 0
dev.em.7.mac_stats.tx_frames_64: 0
dev.em.7.mac_stats.tx_frames_65_127: 0
dev.em.7.mac_stats.tx_frames_128_255: 0
dev.em.7.mac_stats.tx_frames_256_511: 0
dev.em.7.mac_stats.tx_frames_512_1023: 0
dev.em.7.mac_stats.tx_frames_1024_1522: 0
dev.em.7.mac_stats.tso_txd: 0
dev.em.7.mac_stats.tso_ctx_fail: 0
dev.em.7.interrupts.asserts: 0
dev.em.7.interrupts.rx_pkt_timer: 0
dev.em.7.interrupts.rx_abs_timer: 0
dev.em.7.interrupts.tx_pkt_timer: 0
dev.em.7.interrupts.tx_abs_timer: 0
dev.em.7.interrupts.tx_queue_empty: 0
dev.em.7.interrupts.tx_queue_min_thresh: 0
dev.em.7.interrupts.rx_desc_min_thresh: 0
dev.em.7.interrupts.rx_overrun: 0

                              And this is shortly after, having revived the connection using ifconfig:

                              $ sysctl dev.em
dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.0.%driver: em
dev.em.0.%location: slot=0 function=0
dev.em.0.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.0.%parent: pci5
dev.em.0.nvm: -1
dev.em.0.debug: -1
dev.em.0.fc: 3
dev.em.0.rx_int_delay: 0
dev.em.0.tx_int_delay: 66
dev.em.0.rx_abs_int_delay: 66
dev.em.0.tx_abs_int_delay: 66
dev.em.0.itr: 488
dev.em.0.rx_processing_limit: 100
dev.em.0.eee_control: 1
dev.em.0.link_irq: 3
dev.em.0.mbuf_alloc_fail: 0
dev.em.0.cluster_alloc_fail: 0
dev.em.0.dropped: 0
dev.em.0.tx_dma_fail: 0
dev.em.0.rx_overruns: 0
dev.em.0.watchdog_timeouts: 0
dev.em.0.device_control: 1074790984
dev.em.0.rx_control: 67141658
dev.em.0.fc_high_water: 18432
dev.em.0.fc_low_water: 16932
dev.em.0.queue0.txd_head: 685
dev.em.0.queue0.txd_tail: 685
dev.em.0.queue0.tx_irq: 1353736
dev.em.0.queue0.no_desc_avail: 0
dev.em.0.queue0.rxd_head: 676
dev.em.0.queue0.rxd_tail: 675
dev.em.0.queue0.rx_irq: 2196823
dev.em.0.mac_stats.excess_coll: 0
dev.em.0.mac_stats.single_coll: 0
dev.em.0.mac_stats.multiple_coll: 0
dev.em.0.mac_stats.late_coll: 0
dev.em.0.mac_stats.collision_count: 0
dev.em.0.mac_stats.symbol_errors: 0
dev.em.0.mac_stats.sequence_errors: 0
dev.em.0.mac_stats.defer_count: 0
dev.em.0.mac_stats.missed_packets: 0
dev.em.0.mac_stats.recv_no_buff: 0
dev.em.0.mac_stats.recv_undersize: 0
dev.em.0.mac_stats.recv_fragmented: 0
dev.em.0.mac_stats.recv_oversize: 14
dev.em.0.mac_stats.recv_jabber: 0
dev.em.0.mac_stats.recv_errs: 1
dev.em.0.mac_stats.crc_errs: 1864
dev.em.0.mac_stats.alignment_errs: 0
dev.em.0.mac_stats.coll_ext_errs: 0
dev.em.0.mac_stats.xon_recvd: 0
dev.em.0.mac_stats.xon_txd: 0
dev.em.0.mac_stats.xoff_recvd: 0
dev.em.0.mac_stats.xoff_txd: 0
dev.em.0.mac_stats.total_pkts_recvd: 2695671
dev.em.0.mac_stats.good_pkts_recvd: 2693793
dev.em.0.mac_stats.bcast_pkts_recvd: 115211
dev.em.0.mac_stats.mcast_pkts_recvd: 170573
dev.em.0.mac_stats.rx_frames_64: 231428
dev.em.0.mac_stats.rx_frames_65_127: 881736
dev.em.0.mac_stats.rx_frames_128_255: 240428
dev.em.0.mac_stats.rx_frames_256_511: 127402
dev.em.0.mac_stats.rx_frames_512_1023: 43918
dev.em.0.mac_stats.rx_frames_1024_1522: 1168881
dev.em.0.mac_stats.good_octets_recvd: 1944697083
dev.em.0.mac_stats.good_octets_txd: 267511513
dev.em.0.mac_stats.total_pkts_txd: 2302538
dev.em.0.mac_stats.good_pkts_txd: 2302538
dev.em.0.mac_stats.bcast_pkts_txd: 21
dev.em.0.mac_stats.mcast_pkts_txd: 5
dev.em.0.mac_stats.tx_frames_64: 401423
dev.em.0.mac_stats.tx_frames_65_127: 1702538
dev.em.0.mac_stats.tx_frames_128_255: 59586
dev.em.0.mac_stats.tx_frames_256_511: 57937
dev.em.0.mac_stats.tx_frames_512_1023: 37227
dev.em.0.mac_stats.tx_frames_1024_1522: 43827
dev.em.0.mac_stats.tso_txd: 0
dev.em.0.mac_stats.tso_ctx_fail: 0
dev.em.0.interrupts.asserts: 5
dev.em.0.interrupts.rx_pkt_timer: 0
dev.em.0.interrupts.rx_abs_timer: 0
dev.em.0.interrupts.tx_pkt_timer: 0
dev.em.0.interrupts.tx_abs_timer: 0
dev.em.0.interrupts.tx_queue_empty: 0
dev.em.0.interrupts.tx_queue_min_thresh: 0
dev.em.0.interrupts.rx_desc_min_thresh: 0
dev.em.0.interrupts.rx_overrun: 0
dev.em.1.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.1.%driver: em
dev.em.1.%location: slot=0 function=0
dev.em.1.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.1.%parent: pci6
dev.em.1.nvm: -1
dev.em.1.debug: -1
dev.em.1.fc: 3
dev.em.1.rx_int_delay: 0
dev.em.1.tx_int_delay: 66
dev.em.1.rx_abs_int_delay: 66
dev.em.1.tx_abs_int_delay: 66
dev.em.1.itr: 488
dev.em.1.rx_processing_limit: 100
dev.em.1.eee_control: 1
dev.em.1.link_irq: 22
dev.em.1.mbuf_alloc_fail: 0
dev.em.1.cluster_alloc_fail: 0
dev.em.1.dropped: 0
dev.em.1.tx_dma_fail: 0
dev.em.1.rx_overruns: 0
dev.em.1.watchdog_timeouts: 0
dev.em.1.device_control: 1477444168
dev.em.1.rx_control: 67141658
dev.em.1.fc_high_water: 18432
dev.em.1.fc_low_water: 16932
dev.em.1.queue0.txd_head: 839
dev.em.1.queue0.txd_tail: 839
dev.em.1.queue0.tx_irq: 1691646
dev.em.1.queue0.no_desc_avail: 0
dev.em.1.queue0.rxd_head: 100
dev.em.1.queue0.rxd_tail: 99
dev.em.1.queue0.rx_irq: 1381613
dev.em.1.mac_stats.excess_coll: 0
dev.em.1.mac_stats.single_coll: 0
dev.em.1.mac_stats.multiple_coll: 0
dev.em.1.mac_stats.late_coll: 0
dev.em.1.mac_stats.collision_count: 0
dev.em.1.mac_stats.symbol_errors: 0
dev.em.1.mac_stats.sequence_errors: 0
dev.em.1.mac_stats.defer_count: 0
dev.em.1.mac_stats.missed_packets: 0
dev.em.1.mac_stats.recv_no_buff: 0
dev.em.1.mac_stats.recv_undersize: 0
dev.em.1.mac_stats.recv_fragmented: 0
dev.em.1.mac_stats.recv_oversize: 0
dev.em.1.mac_stats.recv_jabber: 0
dev.em.1.mac_stats.recv_errs: 0
dev.em.1.mac_stats.crc_errs: 0
dev.em.1.mac_stats.alignment_errs: 0
dev.em.1.mac_stats.coll_ext_errs: 0
dev.em.1.mac_stats.xon_recvd: 0
dev.em.1.mac_stats.xon_txd: 0
dev.em.1.mac_stats.xoff_recvd: 0
dev.em.1.mac_stats.xoff_txd: 0
dev.em.1.mac_stats.total_pkts_recvd: 6059107
dev.em.1.mac_stats.good_pkts_recvd: 6059107
dev.em.1.mac_stats.bcast_pkts_recvd: 1003
dev.em.1.mac_stats.mcast_pkts_recvd: 36
dev.em.1.mac_stats.rx_frames_64: 3395204
dev.em.1.mac_stats.rx_frames_65_127: 1584944
dev.em.1.mac_stats.rx_frames_128_255: 146061
dev.em.1.mac_stats.rx_frames_256_511: 68733
dev.em.1.mac_stats.rx_frames_512_1023: 57333
dev.em.1.mac_stats.rx_frames_1024_1522: 806832
dev.em.1.mac_stats.good_octets_recvd: 1644015882
dev.em.1.mac_stats.good_octets_txd: 10934440772
dev.em.1.mac_stats.total_pkts_txd: 8619016
dev.em.1.mac_stats.good_pkts_txd: 8619016
dev.em.1.mac_stats.bcast_pkts_txd: 20889
dev.em.1.mac_stats.mcast_pkts_txd: 9162
dev.em.1.mac_stats.tx_frames_64: 439143
dev.em.1.mac_stats.tx_frames_65_127: 621925
dev.em.1.mac_stats.tx_frames_128_255: 326546
dev.em.1.mac_stats.tx_frames_256_511: 105432
dev.em.1.mac_stats.tx_frames_512_1023: 44657
dev.em.1.mac_stats.tx_frames_1024_1522: 7081313
dev.em.1.mac_stats.tso_txd: 0
dev.em.1.mac_stats.tso_ctx_fail: 0
dev.em.1.interrupts.asserts: 13
dev.em.1.interrupts.rx_pkt_timer: 0
dev.em.1.interrupts.rx_abs_timer: 0
dev.em.1.interrupts.tx_pkt_timer: 0
dev.em.1.interrupts.tx_abs_timer: 0
dev.em.1.interrupts.tx_queue_empty: 0
dev.em.1.interrupts.tx_queue_min_thresh: 0
dev.em.1.interrupts.rx_desc_min_thresh: 0
dev.em.1.interrupts.rx_overrun: 0
dev.em.2.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.2.%driver: em
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dev.em.3.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.3.%driver: em
dev.em.3.%location: slot=0 function=0
dev.em.3.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
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dev.em.4.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.4.%driver: em
dev.em.4.%location: slot=0 function=0
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dev.em.5.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.5.%driver: em
dev.em.5.%location: slot=0 function=0
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dev.em.6.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.6.%driver: em
dev.em.6.%location: slot=0 function=0
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dev.em.7.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.7.%driver: em
dev.em.7.%location: slot=0 function=0
dev.em.7.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0x0000 class=0x020000
dev.em.7.%parent: pci18
dev.em.7.nvm: -1
dev.em.7.debug: -1
dev.em.7.fc: 3
dev.em.7.rx_int_delay: 0
dev.em.7.tx_int_delay: 66
dev.em.7.rx_abs_int_delay: 66
dev.em.7.tx_abs_int_delay: 66
dev.em.7.itr: 488
dev.em.7.rx_processing_limit: 100
dev.em.7.eee_control: 1
dev.em.7.link_irq: 0
dev.em.7.mbuf_alloc_fail: 0
dev.em.7.cluster_alloc_fail: 0
dev.em.7.dropped: 0
dev.em.7.tx_dma_fail: 0
dev.em.7.rx_overruns: 0
dev.em.7.watchdog_timeouts: 0
dev.em.7.device_control: 1074790984
dev.em.7.rx_control: 67141658
dev.em.7.fc_high_water: 18432
dev.em.7.fc_low_water: 16932
dev.em.7.queue0.txd_head: 0
dev.em.7.queue0.txd_tail: 0
dev.em.7.queue0.tx_irq: 0
dev.em.7.queue0.no_desc_avail: 0
dev.em.7.queue0.rxd_head: 0
dev.em.7.queue0.rxd_tail: 1023
dev.em.7.queue0.rx_irq: 0
dev.em.7.mac_stats.excess_coll: 0
dev.em.7.mac_stats.single_coll: 0
dev.em.7.mac_stats.multiple_coll: 0
dev.em.7.mac_stats.late_coll: 0
dev.em.7.mac_stats.collision_count: 0
dev.em.7.mac_stats.symbol_errors: 0
dev.em.7.mac_stats.sequence_errors: 0
dev.em.7.mac_stats.defer_count: 0
dev.em.7.mac_stats.missed_packets: 0
dev.em.7.mac_stats.recv_no_buff: 0
dev.em.7.mac_stats.recv_undersize: 0
dev.em.7.mac_stats.recv_fragmented: 0
dev.em.7.mac_stats.recv_oversize: 0
dev.em.7.mac_stats.recv_jabber: 0
dev.em.7.mac_stats.recv_errs: 0
dev.em.7.mac_stats.crc_errs: 0
dev.em.7.mac_stats.alignment_errs: 0
dev.em.7.mac_stats.coll_ext_errs: 0
dev.em.7.mac_stats.xon_recvd: 0
dev.em.7.mac_stats.xon_txd: 0
dev.em.7.mac_stats.xoff_recvd: 0
dev.em.7.mac_stats.xoff_txd: 0
dev.em.7.mac_stats.total_pkts_recvd: 0
dev.em.7.mac_stats.good_pkts_recvd: 0
dev.em.7.mac_stats.bcast_pkts_recvd: 0
dev.em.7.mac_stats.mcast_pkts_recvd: 0
dev.em.7.mac_stats.rx_frames_64: 0
dev.em.7.mac_stats.rx_frames_65_127: 0
dev.em.7.mac_stats.rx_frames_128_255: 0
dev.em.7.mac_stats.rx_frames_256_511: 0
dev.em.7.mac_stats.rx_frames_512_1023: 0
dev.em.7.mac_stats.rx_frames_1024_1522: 0
dev.em.7.mac_stats.good_octets_recvd: 0
dev.em.7.mac_stats.good_octets_txd: 0
dev.em.7.mac_stats.total_pkts_txd: 0
dev.em.7.mac_stats.good_pkts_txd: 0
dev.em.7.mac_stats.bcast_pkts_txd: 0
dev.em.7.mac_stats.mcast_pkts_txd: 0
dev.em.7.mac_stats.tx_frames_64: 0
dev.em.7.mac_stats.tx_frames_65_127: 0
dev.em.7.mac_stats.tx_frames_128_255: 0
dev.em.7.mac_stats.tx_frames_256_511: 0
dev.em.7.mac_stats.tx_frames_512_1023: 0
dev.em.7.mac_stats.tx_frames_1024_1522: 0
dev.em.7.mac_stats.tso_txd: 0
dev.em.7.mac_stats.tso_ctx_fail: 0
dev.em.7.interrupts.asserts: 0
dev.em.7.interrupts.rx_pkt_timer: 0
dev.em.7.interrupts.rx_abs_timer: 0
dev.em.7.interrupts.tx_pkt_timer: 0
dev.em.7.interrupts.tx_abs_timer: 0
dev.em.7.interrupts.tx_queue_empty: 0
dev.em.7.interrupts.tx_queue_min_thresh: 0
dev.em.7.interrupts.rx_desc_min_thresh: 0
dev.em.7.interrupts.rx_overrun: 0
                              1 Reply Last reply Reply Quote 0
                              • stephenw10S
                                stephenw10 Netgate Administrator
                                last edited by

                                I have a box that is quite similar in many ways, same NICs, and I often use it as you do, without a switch. I too have all six em NICs bridged together. However I haven't done so recently as I'm using as a test box with 2.2. Thinking back I'm not sure if I ever had that arrangement with 2.1.1/2.
                                Interestingly I have experienced very similar behavior on that box but not on the em interfaces, on its one fxp NIC. That NIC will not negotiate a connection if it is powered up before the machine at the other end. In that case it was a harware (perhaps firmware) level issue where it would fail to negotiate a speed and duplex wiht the NIC at the other end resulting in no link. The link LED would flash intermittently as it tried and failed. It has no problem doing it it the other end is already powered up. I never found a good solution to it but you work around it by manually setting the link speed and duplex. Try that.

                                Steve

                                1 Reply Last reply Reply Quote 0
                                • E
                                  ESPNSTI
                                  last edited by

                                  I have played around with nic settings on the connecting PC before, and that didn't seem to make a difference, but I will try that again.

                                  I looked at some of the differences between the em drivers in 2.1.0 and 2.1.2.
                                  In 2.1.2 the version is 7.3.8, I think 2.1.0 might be 7.3.2.
                                  One thing I noticed is that the hw.em.eee_setting (Energy Efficient Ethernet) default might have changed.
                                  It now seems to default to 1 and I think it defaulted to 0 before.
                                  However I can't figure out by the somewhat cryptic code if that means it's now enabled or disabled.
                                  Anyway, I set hw.em.eee_setting=0 in /boot/loader.conf.local and rebooted, but that unfortunately didn't fix it.

                                  1 Reply Last reply Reply Quote 0
                                  • stephenw10S
                                    stephenw10 Netgate Administrator
                                    last edited by

                                    Damn that seems like a great suspect. The sysctl had changed after boot?

                                    In my case you could see the NIC wasn't making a connection as ifconfig showed 'no carrier' I don't belive you're seeing that though.

                                    Steve

                                    1 Reply Last reply Reply Quote 0
                                    • E
                                      ESPNSTI
                                      last edited by

                                      After the reboot, sysctl did show eee_setting as 0.

                                      Edit: I tried changing the link speed and duplex of the connecting PC, and that made no difference.

                                      There are some tests included in the Windows nic driver that I ran, and during the time the problem occurs, they all succeed except for the connection test.

                                      ![Cable Test.gif](/public/imported_attachments/1/Cable Test.gif)
                                      ![Cable Test.gif_thumb](/public/imported_attachments/1/Cable Test.gif_thumb)
                                      ![Hardware Test.gif](/public/imported_attachments/1/Hardware Test.gif)
                                      ![Hardware Test.gif_thumb](/public/imported_attachments/1/Hardware Test.gif_thumb)

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