On server installed X520-DA2 adapter Every time mac_stats.checksum_errs is increased. But netstat -nI ix0 no show error's netstat -nI ix0 Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll ix0 1500 <Link#5> 90:e2:ba:14:4d:04 17171149630 195 0 10214496959 0 0 flood ping from neighbor linux server not lost packet's ping -c 10000 -i 0.0001 192.168.8.2 PING 192.168.8.2 (192.168.8.2) 56(84) bytes of data. 64 bytes from 192.168.8.2: icmp_seq=1 ttl=64 time=0.076 ms 64 bytes from 192.168.8.2: icmp_seq=2 ttl=64 time=0.067 ms 64 bytes from 192.168.8.2: icmp_seq=3 ttl=64 time=0.075 ms 64 bytes from 192.168.8.2: icmp_seq=4 ttl=64 time=0.105 ms 64 bytes from 192.168.8.2: icmp_seq=5 ttl=64 time=0.121 ms 64 bytes from 192.168.8.2: icmp_seq=6 ttl=64 time=0.084 ms ..... --- 192.168.8.2 ping statistics --- 10000 packets transmitted, 10000 received, 0% packet loss, time 1027ms rtt min/avg/max/mdev = 0.034/0.070/0.282/0.021 ms, ipg/ewma 0.102/0.072 ms AND ping -c 10000 -i 0.0001 192.168.8.2 -s 1472 PING 192.168.8.2 (192.168.8.2) 1472(1500) bytes of data. 1480 bytes from 192.168.8.2: icmp_seq=1 ttl=64 time=0.113 ms 1480 bytes from 192.168.8.2: icmp_seq=2 ttl=64 time=0.189 ms 1480 bytes from 192.168.8.2: icmp_seq=3 ttl=64 time=0.119 ms 1480 bytes from 192.168.8.2: icmp_seq=4 ttl=64 time=0.317 ms .... --- 192.168.8.2 ping statistics --- 10000 packets transmitted, 10000 received, 0% packet loss, time 2119ms rtt min/avg/max/mdev = 0.071/0.181/0.567/0.057 ms, ipg/ewma 0.212/0.183 ms # ifconfig -vvvvv ix0 ix0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=e000bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,RXCSUM_IPV6,TXCSUM_IPV6> ether 90:e2:ba:14:4d:04 hwaddr 90:e2:ba:14:4d:04 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: Ethernet autoselect (10Gbase-SR <full-duplex>) status: active plugged: SFP/SFP+/SFP28 10G Base-SR (LC) vendor: Intel Corp PN: FTLX8571D3BCV-IT SN: SC12690003 DATE: 2011-03-02 module temperature: 34.69 C Voltage: 3.28 Volts RX: 0.58 mW (-2.36 dBm) TX: 0.63 mW (-2.00 dBm) SFF8472 DUMP (0xA0 0..127 range): 03 04 07 10 00 00 01 00 00 00 00 06 67 02 14 C8 08 03 00 1E 49 6E 74 65 6C 20 43 6F 72 70 20 20 20 20 20 20 00 00 1B 21 46 54 4C 58 38 35 37 31 44 33 42 43 56 2D 49 54 41 20 20 20 05 1E 00 32 00 3A 00 00 53 43 31 32 36 39 30 30 30 33 20 20 20 20 20 20 31 31 30 33 30 32 20 20 68 FA 03 F1 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Created attachment 187132 [details] sysctl statistic
Created attachment 187133 [details] netstat info
yes
(In reply to Anton from comment #0) Is mac_stats.checksum_errs counter increasing while receiving ICMP packets or with other specific type of traffic?
it increasing on any traffic at random time.
Fixed in 8de48df35c3bf4800176b7aa54c75a01864d458b