Hi, All,
I met a strange NIC link down problem and couldn't find any useful clues by
now.
I ran RHEL6.0 (kernel version: 2.6.32.71), and used Intel 82571EB Gigabit
Ethernet Controller. The version of e1000e driver was 1.2.7, which was the
original version in RHEL6.0. My system could run for several months, but
suddenly saw these messages in log:
May 19 18:46:37 (none) kernel: e1000e: eth1 NIC Link is Down
May 19 18:46:39 (none) kernel: e1000e: eth1 NIC Link is Up 1000 Mbps Full
Duplex, Flow Control: RX/TX
Then eth1 couldn't be used any more. I checked the cables and the switch.
Both had no problems. After rebooting the system and not touching anything
else, then it could work again.
Previously I didn't notice this problem. But now I viewed the old logs and
found it happened for several times. Each time the system could run for
several months. The network traffic over the NIC was not heavy.
This problem could be reproduced on another hardware with the same hardware
and software configuration.
Is it related to a bug of e1000e? The driver version 1.2.7 seems very old.
Is it useful if I upgrade the driver?
Thanks,
Paul
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