2.1.1/2.1.2 - Unable to connect LAN from power off without firewall reboot
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Sounds like the problem I had with my virtual instance of pfsense, I always had to reboot the guest twice before any traffic would commence. I solved this by increasing mbuf, so check your mbuf.
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Thanks for the reply. :)
I don't believe I am running in to this as I increased my mbuf when I first installed pfSense, I have this in my /boot/loader.conf.local:
kern.cam.boot_delay=10000 hint.acpi.0.disabled=1 legal.intel_ipw.license_ack=1 legal.intel_wpi.license_ack=1 kern.ipc.nmbclusters="131072"
However I don't think I actually looked at mbuf the last time this happened, so I can't rule it out 100%.
Edit:
Looks like mbuf is fine, it's only at 10%:$ netstat -m 32658/627/33285 mbufs in use (current/cache/total) 12123/637/12760/131072 mbuf clusters in use (current/cache/total/max) 12122/294 mbuf+clusters out of packet secondary zone in use (current/cache) 0/44/44/65536 4k (page size) jumbo clusters in use (current/cache/total/max) 0/0/0/32768 9k jumbo clusters in use (current/cache/total/max) 0/0/0/16384 16k jumbo clusters in use (current/cache/total/max) 32907K/1606K/34514K bytes allocated to network (current/cache/total) 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) 0/0/0 requests for jumbo clusters denied (4k/9k/16k) 0/6/6656 sfbufs in use (current/peak/max) 0 requests for sfbufs denied 0 requests for sfbufs delayed 0 requests for I/O initiated by sendfile 0 calls to protocol drain routines
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If you have the bridge interface set as LAN have you spoofed the MAC? This doesn't match your symptoms but if you don't spoof the MAC address it will be assigned a random one that may change betweem boots. Windows then sees that as a new DHCP server and will set it's firewall appropriately. Something to watch out for.
My first suspect here would be Snort. Are you running it on LAN?
Steve
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I have spoofed the LAN bridge interface, yes.
I do run Snort on LAN, but the configuration has not changed compared to when it was running on 2.1.0.
The Snort version did change though I think.
I will disable it on LAN and see if that makes a difference.Thanks. :)
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Disabling Snort on the LAN side did not make a difference.
Strangely, unchecking the Snort Interface - General Settings - "Enable or Disable" check box and saving, changes some of the settings.
I did a config diff after I re-enabled and these items were all different:-
blockoffenders7
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cksumcheck
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fpm_search_optimize
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fpm_no_stream_inserts
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suppresslistname
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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).
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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)
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Reset states (using Diagnostics\Sates)
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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. -
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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!
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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. -
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:
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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
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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.
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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
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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.
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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
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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
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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). -
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
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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. -
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
-
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 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: 955 dev.em.0.queue0.txd_tail: 955 dev.em.0.queue0.tx_irq: 1353023 dev.em.0.queue0.no_desc_avail: 0 dev.em.0.queue0.rxd_head: 646 dev.em.0.queue0.rxd_tail: 645 dev.em.0.queue0.rx_irq: 2194821 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: 1858 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: 2693590 dev.em.0.mac_stats.good_pkts_recvd: 2691718 dev.em.0.mac_stats.bcast_pkts_recvd: 114676 dev.em.0.mac_stats.mcast_pkts_recvd: 169968 dev.em.0.mac_stats.rx_frames_64: 230759 dev.em.0.mac_stats.rx_frames_65_127: 881015 dev.em.0.mac_stats.rx_frames_128_255: 240095 dev.em.0.mac_stats.rx_frames_256_511: 127210 dev.em.0.mac_stats.rx_frames_512_1023: 43897 dev.em.0.mac_stats.rx_frames_1024_1522: 1168742 dev.em.0.mac_stats.good_octets_recvd: 1944245208 dev.em.0.mac_stats.good_octets_txd: 267430581 dev.em.0.mac_stats.total_pkts_txd: 2301786 dev.em.0.mac_stats.good_pkts_txd: 2301786 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: 401303 dev.em.0.mac_stats.tx_frames_65_127: 1701968 dev.em.0.mac_stats.tx_frames_128_255: 59555 dev.em.0.mac_stats.tx_frames_256_511: 57933 dev.em.0.mac_stats.tx_frames_512_1023: 37200 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: 112 dev.em.1.queue0.txd_tail: 112 dev.em.1.queue0.tx_irq: 1690961 dev.em.1.queue0.no_desc_avail: 0 dev.em.1.queue0.rxd_head: 37 dev.em.1.queue0.rxd_tail: 36 dev.em.1.queue0.rx_irq: 1381555 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: 6059045 dev.em.1.mac_stats.good_pkts_recvd: 6059045 dev.em.1.mac_stats.bcast_pkts_recvd: 1001 dev.em.1.mac_stats.mcast_pkts_recvd: 36 dev.em.1.mac_stats.rx_frames_64: 3395197 dev.em.1.mac_stats.rx_frames_65_127: 1584918 dev.em.1.mac_stats.rx_frames_128_255: 146033 dev.em.1.mac_stats.rx_frames_256_511: 68732 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: 1644008445 dev.em.1.mac_stats.good_octets_txd: 10934359364 dev.em.1.mac_stats.total_pkts_txd: 8618288 dev.em.1.mac_stats.good_pkts_txd: 8618288 dev.em.1.mac_stats.bcast_pkts_txd: 20285 dev.em.1.mac_stats.mcast_pkts_txd: 9084 dev.em.1.mac_stats.tx_frames_64: 438597 dev.em.1.mac_stats.tx_frames_65_127: 621818 dev.em.1.mac_stats.tx_frames_128_255: 326533 dev.em.1.mac_stats.tx_frames_256_511: 105392 dev.em.1.mac_stats.tx_frames_512_1023: 44645 dev.em.1.mac_stats.tx_frames_1024_1522: 7081303 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 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: 65 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: 1477444168 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: 737 dev.em.2.queue0.rxd_tail: 736 dev.em.2.queue0.rx_irq: 1025527 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: 7579455 dev.em.2.mac_stats.good_pkts_recvd: 7579455 dev.em.2.mac_stats.bcast_pkts_recvd: 4221 dev.em.2.mac_stats.mcast_pkts_recvd: 1900 dev.em.2.mac_stats.rx_frames_64: 733094 dev.em.2.mac_stats.rx_frames_65_127: 127312 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: 9847651473 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: 41 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: 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 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: 69 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 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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: 41796 dev.em.6.mac_stats.good_pkts_recvd: 41796 dev.em.6.mac_stats.bcast_pkts_recvd: 755 dev.em.6.mac_stats.mcast_pkts_recvd: 454 dev.em.6.mac_stats.rx_frames_64: 29124 dev.em.6.mac_stats.rx_frames_65_127: 8291 dev.em.6.mac_stats.rx_frames_128_255: 984 dev.em.6.mac_stats.rx_frames_256_511: 824 dev.em.6.mac_stats.rx_frames_512_1023: 993 dev.em.6.mac_stats.rx_frames_1024_1522: 1580 dev.em.6.mac_stats.good_octets_recvd: 6142890 dev.em.6.mac_stats.good_octets_txd: 89550641 dev.em.6.mac_stats.total_pkts_txd: 95436 dev.em.6.mac_stats.good_pkts_txd: 95436 dev.em.6.mac_stats.bcast_pkts_txd: 21172 dev.em.6.mac_stats.mcast_pkts_txd: 8816 dev.em.6.mac_stats.tx_frames_64: 19702 dev.em.6.mac_stats.tx_frames_65_127: 9482 dev.em.6.mac_stats.tx_frames_128_255: 2561 dev.em.6.mac_stats.tx_frames_256_511: 8128 dev.em.6.mac_stats.tx_frames_512_1023: 765 dev.em.6.mac_stats.tx_frames_1024_1522: 54798 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
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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
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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. -
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
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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)