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: (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: (eth0): carrier now OFF (device state 1)
Apr 30 17:07:11 localhost NetworkManager: (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: (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: (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,

Latest Articles

  • Linux named / bind how to dump, view and clear the cache!
  • Centos 6 / 7 / 8 How To Change Default nameservers in /etc/resolv.conf when using DHCP / dhclient
  • Adobe Acrobat Reader for Linux to use and view XFA Fillable Forms
  • Debian Linux Mint Ubuntu iptables save and restore settings automatically onboot and reboot
  • Why SMART is not smart at all and doesn't properly predict disk errors that cause a kernel panic or crash
  • scp: ambiguous target error and solution
  • VirtualBox How To Add iSCSI Storage using VBoxManage
  • iSCSI on Centos 7 Configuration and Setup Guide for Initiator and Target
  • Python and BeautifulSoup4's BS4's Decompose Method To Remove Unwanted Inner Tags
  • httpd AH00534: httpd: Configuration error: No MPM loaded. solution
  • bash script to remove modules from httpd.conf that are not actually installed
  • bash scripting how to create a function
  • Centos 7 PHP MySQL Not Working Solution
  • Bash How To Cut or Split Natively And Get The LAST Field
  • Bash Script How To Manipulate Text/Strings By Searchig and Replacing Natively
  • How Does Cisco CUCM (Cisco Unified Communication Manager) Work?
  • What DNS Options Does Active Directory Offer in Windows Server 2008,2012,2016 ?
  • syntax error, unexpected T_SL in PHP Solution
  • grep regular expression match number range between specific numbers
  • bash how to print out lines of text within a range from the first occurrence