Network Interface Using forcedeth Driver Flapping
Issue
- Network interface down, unable to ping or ssh
- Following messages appear daily in logs:
grep eth1 /var/log/messages*
/var/log/messages:Dec 4 23:42:37 ... ntpd[3898]: Listening on interface eth1, 192.168.100.178#123
/var/log/messages:Dec 4 23:42:35 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 4 23:42:53 ... kernel: forcedeth 0000:00:09.0: ifname eth1, PHY OUI 0x5043 @ 3, addr 00:21:28:3d:75:07
/var/log/messages:Dec 4 23:45:54 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 4 23:46:01 ... kernel: eth1: link up.
/var/log/messages:Dec 4 23:46:02 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 4 23:55:10 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 4 23:55:17 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 5 00:01:30 ... kernel: eth1: link down.
/var/log/messages:Dec 5 00:01:32 ... kernel: eth1: link up.
/var/log/messages:Dec 5 00:06:48 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 5 00:06:58 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 5 00:11:09 ... ntpd[3900]: Listening on interface eth1, 192.168.100.178#123
/var/log/messages:Dec 5 00:11:06 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 5 00:11:24 ... kernel: forcedeth 0000:00:09.0: ifname eth1, PHY OUI 0x5043 @ 3, addr 00:21:28:3d:75:07
/var/log/messages:Dec 6 01:47:04 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 6 01:47:10 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 7 01:38:59 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 7 01:39:09 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 7 01:51:49 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 7 01:51:56 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 7 01:54:59 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 7 01:55:06 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 8 01:45:33 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 8 01:45:41 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 8 01:48:52 ... network: Shutting down interface eth1: succeeded
/var/log/messages:Dec 8 01:48:57 ... network: Bringing up interface eth1: succeeded
/var/log/messages:Dec 8 01:48:58 ... kernel: eth1: link up
Environment
- Red Hat Enterprise Linux, version 4.9
- Kernel 2.6.9-103.ELsmp
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