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Date:      Tue, 02 May 2023 15:42:59 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 271205] [ix] [carp]: Continuous input errors on Intel X553
Message-ID:  <bug-271205-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D271205

            Bug ID: 271205
           Summary: [ix] [carp]: Continuous input errors on Intel X553
           Product: Base System
           Version: 12.4-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: duerrd561@gmail.com

I have a pair of FreeBSD 12.4 machines acting as a redundant gateway router=
 for
a private network (fw1 and fw2). This is your classic pf + carp configurati=
on
with a crossover cable between the pfsync interface in order to create a
active/backup firewall configuration. It has worked very well and the
configuration has been stable since the FreeBSD 10.x days, and up through
12.2-STABLE. I upgraded the systems to 12.4-RELEASE approximately 4 months =
ago,
and since then I am seeing continuous input errors accruing on the ix1 (WAN)
interfaces of both machines. The errors do not appear to have a material im=
pact
on network performance, at least not that I know of, but they are detected =
by
my Check MK monitoring system and causing alert fatigue due to constant sta=
te
changes throughout the day.

The hardware is a pair of 1U Supermicro servers which each contain 4 Intel =
X553
interfaces in them:

ix0: <Intel(R) X553 (1GbE)> mem 0xddc00000-0xdddfffff,0xdde04000-0xdde07fff=
 at
device 0.0 on pci6
ix1: <Intel(R) X553 (1GbE)> mem 0xdda00000-0xddbfffff,0xdde00000-0xdde03fff=
 at
device 0.1 on pci6
ix2: <Intel(R) X553 (1GbE)> mem 0xdd600000-0xdd7fffff,0xdd804000-0xdd807fff=
 at
device 0.0 on pci7
ix3: <Intel(R) X553 (1GbE)> mem 0xdd400000-0xdd5fffff,0xdd800000-0xdd803fff=
 at
device 0.1 on pci7

The machines are kept up to date with `freebsd-update`, but have a basic cu=
stom
kernel config which is GENERIC with all unused hardware drivers disabled, a=
nd
with pf compiled in.  Here's the `freebsd-version` output from fw1 and fw2
respectively:

[dd@fw1 dd]$ freebsd-version -kru
12.4-RELEASE-p2
12.4-RELEASE-p2
12.4-RELEASE-p2

[dd@fw2 dd]$ freebsd-version -kru
12.4-RELEASE-p2
12.4-RELEASE-p2
12.4-RELEASE-p2

Here's the relevant interface config from /etc/rc.conf for fw1 and fw2
respectively:

ifconfig_ix1=3D"up media 1000baseTX mediaopt full-duplex -rxcsum -rxcsum6 -=
txcsum
-txcsum6 -lro -tso -vlanhwtso -vlanhwtag -vlanhwfilter -vlanhwcsum descript=
ion
FW1-EXT"
ipv4_addrs_ix1=3D"x.x.x.164/27"
ifconfig_ix1_alias0=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.166/32"
ifconfig_ix1_alias1=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.167/32"
ifconfig_ix1_alias2=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.168/32"
ifconfig_ix1_alias3=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.169/32"
ifconfig_ix1_alias4=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.170/32"
ifconfig_ix1_alias5=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.171/32"
ifconfig_ix1_alias6=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.172/32"
ifconfig_ix1_alias7=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.173/32"
ifconfig_ix1_alias8=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.174/32"
ifconfig_ix1_alias9=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.175/32"
ifconfig_ix1_alias10=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.176/3=
2"
ifconfig_ix1_alias11=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.177/3=
2"
ifconfig_ix1_alias12=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.178/3=
2"
ifconfig_ix1_alias13=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.179/3=
2"
ifconfig_ix1_alias14=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.180/3=
2"
ifconfig_ix1_alias15=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.181/3=
2"
ifconfig_ix1_alias16=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.182/3=
2"
ifconfig_ix1_alias17=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.183/3=
2"
ifconfig_ix1_alias18=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.184/3=
2"
ifconfig_ix1_alias19=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.185/3=
2"
ifconfig_ix1_alias20=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.186/3=
2"
ifconfig_ix1_alias21=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.187/3=
2"
ifconfig_ix1_alias22=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.188/3=
2"
ifconfig_ix1_alias23=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.189/3=
2"
ifconfig_ix1_alias24=3D"inet vhid 2 advskew 10 pass XXXXX alias x.x.x.190/3=
2"

ifconfig_ix1=3D"up media 1000baseTX mediaopt full-duplex -rxcsum -rxcsum6 -=
txcsum
-txcsum6 -lro -tso -vlanhwtso -vlanhwtag -vlanhwfilter -vlanhwcsum descript=
ion
FW2-EXT"
ipv4_addrs_ix1=3D"x.x.x.165/27"
ifconfig_ix1_alias0=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.166/32"
ifconfig_ix1_alias1=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.167/32"
ifconfig_ix1_alias2=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.168/32"
ifconfig_ix1_alias3=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.169/32"
ifconfig_ix1_alias4=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.170/32"
ifconfig_ix1_alias5=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.171/32"
ifconfig_ix1_alias6=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.172/32"
ifconfig_ix1_alias7=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.173/32"
ifconfig_ix1_alias8=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.174/32"
ifconfig_ix1_alias9=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.175/32"
ifconfig_ix1_alias10=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.176/3=
2"
ifconfig_ix1_alias11=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.177/3=
2"
ifconfig_ix1_alias12=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.178/3=
2"
ifconfig_ix1_alias13=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.179/3=
2"
ifconfig_ix1_alias14=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.180/3=
2"
ifconfig_ix1_alias15=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.181/3=
2"
ifconfig_ix1_alias16=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.182/3=
2"
ifconfig_ix1_alias17=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.183/3=
2"
ifconfig_ix1_alias18=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.184/3=
2"
ifconfig_ix1_alias19=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.185/3=
2"
ifconfig_ix1_alias20=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.186/3=
2"
ifconfig_ix1_alias21=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.187/3=
2"
ifconfig_ix1_alias22=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.188/3=
2"
ifconfig_ix1_alias23=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.189/3=
2"
ifconfig_ix1_alias24=3D"inet vhid 2 advskew 20 pass XXXXX alias x.x.x.190/3=
2"

Here's the relevant ifconfig output from fw1 and fw2 respectively:

ix1: flags=3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 =
mtu
1500
        description: FW1-EXT
        options=3D803828<VLAN_MTU,JUMBO_MTU,WOL_UCAST,WOL_MCAST,WOL_MAGIC>
        ether ac:1f:6b:48:75:bd
        inet x.x.x.166 netmask 0xffffffff broadcast x.x.x.166 vhid 2
        inet x.x.x.167 netmask 0xffffffff broadcast x.x.x.167 vhid 2
        inet x.x.x.168 netmask 0xffffffff broadcast x.x.x.168 vhid 2
        inet x.x.x.169 netmask 0xffffffff broadcast x.x.x.169 vhid 2
        inet x.x.x.170 netmask 0xffffffff broadcast x.x.x.170 vhid 2
        inet x.x.x.171 netmask 0xffffffff broadcast x.x.x.171 vhid 2
        inet x.x.x.172 netmask 0xffffffff broadcast x.x.x.172 vhid 2
        inet x.x.x.173 netmask 0xffffffff broadcast x.x.x.173 vhid 2
        inet x.x.x.174 netmask 0xffffffff broadcast x.x.x.174 vhid 2
        inet x.x.x.175 netmask 0xffffffff broadcast x.x.x.175 vhid 2
        inet x.x.x.176 netmask 0xffffffff broadcast x.x.x.176 vhid 2
        inet x.x.x.177 netmask 0xffffffff broadcast x.x.x.177 vhid 2
        inet x.x.x.178 netmask 0xffffffff broadcast x.x.x.178 vhid 2
        inet x.x.x.179 netmask 0xffffffff broadcast x.x.x.179 vhid 2
        inet x.x.x.180 netmask 0xffffffff broadcast x.x.x.180 vhid 2
        inet x.x.x.181 netmask 0xffffffff broadcast x.x.x.181 vhid 2
        inet x.x.x.182 netmask 0xffffffff broadcast x.x.x.182 vhid 2
        inet x.x.x.183 netmask 0xffffffff broadcast x.x.x.183 vhid 2
        inet x.x.x.184 netmask 0xffffffff broadcast x.x.x.184 vhid 2
        inet x.x.x.185 netmask 0xffffffff broadcast x.x.x.185 vhid 2
        inet x.x.x.186 netmask 0xffffffff broadcast x.x.x.186 vhid 2
        inet x.x.x.187 netmask 0xffffffff broadcast x.x.x.187 vhid 2
        inet x.x.x.188 netmask 0xffffffff broadcast x.x.x.188 vhid 2
        inet x.x.x.189 netmask 0xffffffff broadcast x.x.x.189 vhid 2
        inet x.x.x.190 netmask 0xffffffff broadcast x.x.x.190 vhid 2
        inet x.x.x.164 netmask 0xffffffe0 broadcast x.x.x.191
        carp: MASTER vhid 2 advbase 1 advskew 10
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

ix1: flags=3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 =
mtu
1500
        description: FW2-EXT
        options=3D803828<VLAN_MTU,JUMBO_MTU,WOL_UCAST,WOL_MCAST,WOL_MAGIC>
        ether ac:1f:6b:48:77:d5
        inet x.x.x.166 netmask 0xffffffff broadcast x.x.x.166 vhid 2
        inet x.x.x.167 netmask 0xffffffff broadcast x.x.x.167 vhid 2
        inet x.x.x.168 netmask 0xffffffff broadcast x.x.x.168 vhid 2
        inet x.x.x.169 netmask 0xffffffff broadcast x.x.x.169 vhid 2
        inet x.x.x.170 netmask 0xffffffff broadcast x.x.x.170 vhid 2
        inet x.x.x.171 netmask 0xffffffff broadcast x.x.x.171 vhid 2
        inet x.x.x.172 netmask 0xffffffff broadcast x.x.x.172 vhid 2
        inet x.x.x.173 netmask 0xffffffff broadcast x.x.x.173 vhid 2
        inet x.x.x.174 netmask 0xffffffff broadcast x.x.x.174 vhid 2
        inet x.x.x.175 netmask 0xffffffff broadcast x.x.x.175 vhid 2
        inet x.x.x.176 netmask 0xffffffff broadcast x.x.x.176 vhid 2
        inet x.x.x.177 netmask 0xffffffff broadcast x.x.x.177 vhid 2
        inet x.x.x.178 netmask 0xffffffff broadcast x.x.x.178 vhid 2
        inet x.x.x.179 netmask 0xffffffff broadcast x.x.x.179 vhid 2
        inet x.x.x.180 netmask 0xffffffff broadcast x.x.x.180 vhid 2
        inet x.x.x.181 netmask 0xffffffff broadcast x.x.x.181 vhid 2
        inet x.x.x.182 netmask 0xffffffff broadcast x.x.x.182 vhid 2
        inet x.x.x.183 netmask 0xffffffff broadcast x.x.x.183 vhid 2
        inet x.x.x.184 netmask 0xffffffff broadcast x.x.x.184 vhid 2
        inet x.x.x.185 netmask 0xffffffff broadcast x.x.x.185 vhid 2
        inet x.x.x.186 netmask 0xffffffff broadcast x.x.x.186 vhid 2
        inet x.x.x.187 netmask 0xffffffff broadcast x.x.x.187 vhid 2
        inet x.x.x.188 netmask 0xffffffff broadcast x.x.x.188 vhid 2
        inet x.x.x.189 netmask 0xffffffff broadcast x.x.x.189 vhid 2
        inet x.x.x.190 netmask 0xffffffff broadcast x.x.x.190 vhid 2
        inet x.x.x.165 netmask 0xffffffe0 broadcast x.x.x.191
        carp: BACKUP vhid 2 advbase 1 advskew 20
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

Here's the netstat command and output that is being scraped by Check MK's
monitoring agent, showing the accrued 'Ierrs' since last reboot, for fw1 and
fw2 respectively:

[dd@fw1 dd]$ netstat -inb | egrep -v '(^Name|lo|plip)' | grep Link
ix0       1500 <Link#1>      ac:1f:6b:48:75:bc   562360     0     0  143914=
220=20
1275732     0  731183852     0
ix1       1500 <Link#2>      ac:1f:6b:48:75:bd 16542924  9844     0 5580697=
236
13399023     0 6278712421     0
ix2       1500 <Link#3>      ac:1f:6b:48:75:be  7838210     0     0 3723784=
709=20
7797874     0 2672566967     0
ix3       1500 <Link#4>      ac:1f:6b:48:75:be  5858929     0     0 2510511=
102=20
8084444     0 2889334431     0
enc0      1536 <Link#6>      enc0                999484     0     0  199309=
354=20
1791492     0 1818813983     0
pfsync0   1500 <Link#8>      pfsync0             561059     0     0  133067=
492=20
1275449     0  708197332     0
lagg0     1500 <Link#9>      ac:1f:6b:48:75:be 13697139     0     0 6234295=
811
15882318    10 5561901398     0
lagg0.6   1500 <Link#10>     ac:1f:6b:48:75:be  1346494     0     0 1224788=
631=20
 895434     4  425847084     0
lagg0.7   1500 <Link#11>     ac:1f:6b:48:75:be 11312155     0     0 3937770=
163
14185843     3 4927307623     0
lagg0.10  1500 <Link#12>     ac:1f:6b:48:75:be   803446     0     0  934196=
358=20
 613978     3   57663690     0

[dd@fw2 dd]$ netstat -inb | egrep -v '(^Name|lo|plip)' | grep Link
ix0       1500 <Link#1>      ac:1f:6b:48:77:d4  1283178     0     0  735226=
863=20
 567969     0  146696669     0
ix1       1500 <Link#2>      ac:1f:6b:48:77:d5  1213797  1206     0  109701=
049=20
 269221     0   56238161     0
ix2       1500 <Link#3>      ac:1f:6b:48:77:d6   523113     0     0   60681=
990=20
 283135     0   45325911     0
ix3       1500 <Link#4>      ac:1f:6b:48:77:d6   557343     0     0   54758=
663=20
 277200     0   44831157     0
enc0      1536 <Link#6>      enc0                 11526     0     0    1236=
171=20
  16305     0    7547132     0
pfsync0   1500 <Link#8>      pfsync0            1281713     0     0  711380=
284=20
 567848     0  136556706     0
lagg0     1500 <Link#9>      ac:1f:6b:48:77:d6  1080456     0     0  115440=
653=20
 560335     9   90157068     0
lagg0.6   1500 <Link#10>     ac:1f:6b:48:77:d6   160122     0     0   19010=
320=20
  59811     3   13390952     0
lagg0.7   1500 <Link#11>     ac:1f:6b:48:77:d6   589109     0     0   51511=
565=20
 310604     3   49364530     0
lagg0.10  1500 <Link#12>     ac:1f:6b:48:77:d6    94802     0     0    8141=
900=20
   4320     3     473324     0

Here's the output of `sysctl dev.ix.1.mac_stats` from fw1 amd fw2 respectiv=
ely:

[dd@fw1 dd]$ sysctl dev.ix.1.mac_stats
dev.ix.1.mac_stats.tx_frames_1024_1522: 2731033
dev.ix.1.mac_stats.tx_frames_512_1023: 1069308
dev.ix.1.mac_stats.tx_frames_256_511: 527405
dev.ix.1.mac_stats.tx_frames_128_255: 5138744
dev.ix.1.mac_stats.tx_frames_65_127: 3667443
dev.ix.1.mac_stats.tx_frames_64: 345704
dev.ix.1.mac_stats.management_pkts_txd: 0
dev.ix.1.mac_stats.mcast_pkts_txd: 90006
dev.ix.1.mac_stats.bcast_pkts_txd: 67
dev.ix.1.mac_stats.good_pkts_txd: 13479637
dev.ix.1.mac_stats.total_pkts_txd: 13479637
dev.ix.1.mac_stats.good_octets_txd: 6322986085
dev.ix.1.mac_stats.checksum_errs: 9902
dev.ix.1.mac_stats.management_pkts_drpd: 0
dev.ix.1.mac_stats.management_pkts_rcvd: 0
dev.ix.1.mac_stats.recv_jabberd: 0
dev.ix.1.mac_stats.recv_oversized: 0
dev.ix.1.mac_stats.recv_fragmented: 0
dev.ix.1.mac_stats.recv_undersized: 0
dev.ix.1.mac_stats.rx_frames_1024_1522: 1656044
dev.ix.1.mac_stats.rx_frames_512_1023: 797853
dev.ix.1.mac_stats.rx_frames_256_511: 1043221
dev.ix.1.mac_stats.rx_frames_128_255: 8148642
dev.ix.1.mac_stats.rx_frames_65_127: 3508997
dev.ix.1.mac_stats.rx_frames_64: 1502805
dev.ix.1.mac_stats.bcast_pkts_rcvd: 779246
dev.ix.1.mac_stats.mcast_pkts_rcvd: 47489
dev.ix.1.mac_stats.good_pkts_rcvd: 16657562
dev.ix.1.mac_stats.total_pkts_rcvd: 16657563
dev.ix.1.mac_stats.good_octets_rcvd: 5610262402
dev.ix.1.mac_stats.total_octets_rcvd: 5610262402
dev.ix.1.mac_stats.xoff_recvd: 0
dev.ix.1.mac_stats.xoff_txd: 0
dev.ix.1.mac_stats.xon_recvd: 0
dev.ix.1.mac_stats.xon_txd: 0
dev.ix.1.mac_stats.rx_missed_packets: 0
dev.ix.1.mac_stats.rec_len_errs: 0
dev.ix.1.mac_stats.remote_faults: 0
dev.ix.1.mac_stats.local_faults: 10
dev.ix.1.mac_stats.short_discards: 0
dev.ix.1.mac_stats.byte_errs: 0
dev.ix.1.mac_stats.ill_errs: 0
dev.ix.1.mac_stats.crc_errs: 0
dev.ix.1.mac_stats.rx_errs: 9902

[dd@fw2 dd]$ sysctl dev.ix.1.mac_stats
dev.ix.1.mac_stats.tx_frames_1024_1522: 11685
dev.ix.1.mac_stats.tx_frames_512_1023: 5965
dev.ix.1.mac_stats.tx_frames_256_511: 10170
dev.ix.1.mac_stats.tx_frames_128_255: 113592
dev.ix.1.mac_stats.tx_frames_65_127: 125954
dev.ix.1.mac_stats.tx_frames_64: 4238
dev.ix.1.mac_stats.management_pkts_txd: 0
dev.ix.1.mac_stats.mcast_pkts_txd: 263
dev.ix.1.mac_stats.bcast_pkts_txd: 118
dev.ix.1.mac_stats.good_pkts_txd: 271604
dev.ix.1.mac_stats.total_pkts_txd: 271604
dev.ix.1.mac_stats.good_octets_txd: 56640166
dev.ix.1.mac_stats.checksum_errs: 1216
dev.ix.1.mac_stats.management_pkts_drpd: 0
dev.ix.1.mac_stats.management_pkts_rcvd: 0
dev.ix.1.mac_stats.recv_jabberd: 0
dev.ix.1.mac_stats.recv_oversized: 0
dev.ix.1.mac_stats.recv_fragmented: 0
dev.ix.1.mac_stats.recv_undersized: 0
dev.ix.1.mac_stats.rx_frames_1024_1522: 4146
dev.ix.1.mac_stats.rx_frames_512_1023: 14575
dev.ix.1.mac_stats.rx_frames_256_511: 10745
dev.ix.1.mac_stats.rx_frames_128_255: 36205
dev.ix.1.mac_stats.rx_frames_65_127: 334569
dev.ix.1.mac_stats.rx_frames_64: 823070
dev.ix.1.mac_stats.bcast_pkts_rcvd: 783535
dev.ix.1.mac_stats.mcast_pkts_rcvd: 138032
dev.ix.1.mac_stats.good_pkts_rcvd: 1223310
dev.ix.1.mac_stats.total_pkts_rcvd: 1223310
dev.ix.1.mac_stats.good_octets_rcvd: 110608648
dev.ix.1.mac_stats.total_octets_rcvd: 110608648
dev.ix.1.mac_stats.xoff_recvd: 0
dev.ix.1.mac_stats.xoff_txd: 0
dev.ix.1.mac_stats.xon_recvd: 0
dev.ix.1.mac_stats.xon_txd: 0
dev.ix.1.mac_stats.rx_missed_packets: 0
dev.ix.1.mac_stats.rec_len_errs: 0
dev.ix.1.mac_stats.remote_faults: 0
dev.ix.1.mac_stats.local_faults: 10
dev.ix.1.mac_stats.short_discards: 0
dev.ix.1.mac_stats.byte_errs: 0
dev.ix.1.mac_stats.ill_errs: 0
dev.ix.1.mac_stats.crc_errs: 0
dev.ix.1.mac_stats.rx_errs: 1216

The upgrade from 12.2-STABLE to 12.4-RELEASE was the only change made when =
the
errors began to appear. Everything else remained the same -- the physical l=
ayer
(network cables, switch, etc.), the monitoring check plugin, the switch con=
fig,
the rc.conf config, etc.

--=20
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