I'm seeing a NIC hang-up/crash on my server and every time i check ifconfig output, it gives me very high errors, dropped and frame:
$ ifconfig eth1
eth1 Link encap:Ethernet HWaddr 00:25:90:A4:37:A2
inet6 addr: fe80::225:90ff:fea4:37a2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:438813 errors:295321951204200 dropped:49220325200700 overruns:0 frame:196881300802800
TX packets:459806 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:52727916 (50.2 MiB) TX bytes:419213796 (399.7 MiB)
Interrupt:16 Memory:df900000-df920000
And when i check the interface:
$ grep "" /sys/class/net/eth1/*
/sys/class/net/eth1/addr_assign_type:0
/sys/class/net/eth1/address:00:25:90:a4:37:a2
/sys/class/net/eth1/addr_len:6
/sys/class/net/eth1/broadcast:ff:ff:ff:ff:ff:ff
/sys/class/net/eth1/carrier:0
/sys/class/net/eth1/dev_id:0x0
/sys/class/net/eth1/dormant:0
/sys/class/net/eth1/duplex:unknown
/sys/class/net/eth1/features:0x110ba9
/sys/class/net/eth1/flags:0x1103
/sys/class/net/eth1/ifindex:3
/sys/class/net/eth1/iflink:3
/sys/class/net/eth1/link_mode:0
/sys/class/net/eth1/mtu:1500
/sys/class/net/eth1/operstate:down
/sys/class/net/eth1/speed:-1
/sys/class/net/eth1/tx_queue_len:1000
/sys/class/net/eth1/type:1
/sys/class/net/eth1/uevent:INTERFACE=eth1
/sys/class/net/eth1/uevent:IFINDEX=3
Kernel: 2.6.32-431.5.1.el6.centos.plus.x86_64
At first, i did a modprobe -r module; modprobe module to reload the driver, and to reset the stats but after which it tells me that eth1 device is not present anymore on the system.
I can't say for sure if it's a NIC issue because this happens to multiple servers. But a reboot solves the problem. Any ideas?