Is your NIC really down and really dying? r8169: eth0: link up r8169: eth0: link down NetworkManager: (eth0): carrier now OFF (device state 1)

Apr 30 17:07:07 localhost kernel: [12265558.582378] r8169: eth0: link up
Apr 30 17:07:07 localhost NetworkManager: <info>  (eth0): carrier now ON (device state 1)
Apr 30 17:07:08 localhost kernel: [12265559.237961] r8169: eth0: link down
Apr 30 17:07:08 localhost NetworkManager: <info>  (eth0): carrier now OFF (device state 1)
Apr 30 17:07:11 localhost NetworkManager: <info>  (eth0): carrier now ON (device state 1)
Apr 30 17:07:11 localhost kernel: [12265562.162804] r8169: eth0: link up
Apr 30 17:07:11 localhost kernel: [12265562.577849] r8169: eth0: link down
Apr 30 17:07:12 localhost NetworkManager: <info>  (eth0): carrier now OFF (device state 1)
Apr 30 17:07:14 localhost kernel: [12265565.312582] r8169: eth0: link up
Apr 30 17:07:14 localhost NetworkManager: <info>  (eth0): carrier now ON (device state 1)

Apr 30 17:09:10 localhost kernel: [12265681.639307] r8169: eth0: link down
Apr 30 17:09:13 localhost kernel: [12265684.402984] r8169: eth0: link up
Apr 30 17:09:14 localhost kernel: [12265685.660805] r8169: eth0: link down
Apr 30 17:09:18 localhost kernel: [12265688.942400] r8169: eth0: link up
Apr 30 17:09:18 localhost kernel: [12265689.826486] r8169: eth0: link down
Apr 30 17:09:21 localhost kernel: [12265692.512789] r8169: eth0: link up
Apr 30 17:09:22 localhost kernel: [12265693.134914] r8169: eth0: link down
Apr 30 17:09:31 localhost kernel: [12265702.700430] r8169: eth0: link up
Apr 30 17:09:34 localhost kernel: [12265705.571668] r8169: eth0: link down
Apr 30 17:09:37 localhost kernel: [12265708.281532] r8169: eth0: link up

I was getting frustrated by when I checked the Cat5 cable it was a little bit loose on the NIC.  This is a case where any tug somewhere on the line knocked it loose.

So I would double check with your datacenter or if you can, physically check the server yourself to see if the NIC's RJ45 cable is actually plugged in snugly and fully seated.


Tags:

nic, eth, networkmanager, carrier, apr, localhost, kernel, info, frustrated, tug, datacenter, server, rj, plugged, snugly, seated,

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