Network interface is flapping up and down in a system using a Qlogic FastLinQ Ethernet controller driver

Solution Unverified - Updated -

Issue

  • Multiple network interface is flapping up and down.
  • Message log shows Link is up/down with qede_link_update
$ cat var/log/messages|grep "Link is "
Oct 27 04:18:31 hostname kernel: [qede_link_update:3740(p2p2_1)]Link is down         
Oct 27 04:18:31 hostname kernel: [qede_link_update:3740(p2p2_3)]Link is down    
Oct 27 04:18:31 hostname kernel: [qede_link_update:3740(p2p2_4)]Link is down
Oct 27 04:18:31 hostname kernel: [qede_link_update:3733(p2p2_3)]Link is up  
Oct 27 04:18:31 hostname kernel: [qede_link_update:3733(p2p2_1)]Link is up 
Oct 27 04:18:31 hostname kernel: [qede_link_update:3733(p2p2_4)]Link is up 
Oct 27 04:34:45 hostname kernel: [qede_link_update:3740(p2p2_1)]Link is down
Oct 27 04:34:45 hostname kernel: [qede_link_update:3740(p2p2_3)]Link is down
Oct 27 04:34:45 hostname kernel: [qede_link_update:3740(p2p2_4)]Link is down
Oct 27 04:34:45 hostname kernel: [qede_link_update:3733(p2p2_3)]Link is up  
Oct 27 04:34:45 hostname kernel: [qede_link_update:3733(p2p2_1)]Link is up 
Oct 27 04:34:45 hostname kernel: [qede_link_update:3733(p2p2_4)]Link is up 
...

Environment

  • Red Hat Enterprise Linux 7.6
  • Qlogic FastLinQ Ethernet controller driver

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