Oracle Linux: Interface MII Status Shows as Down When Using "updelay" with non-zero Value "link status up for interface enox, enabling it in 500 ms "
(Doc ID 2671932.1)
Last updated on MAY 12, 2021
Applies to:
Linux OS - Version Oracle Linux 7.5 and laterLinux x86-64
Symptoms
Kernel: kernel-3.10.0-693.el7
MII status shows as down for one of the HW interfaces.
cat /proc/net/bonding/bond0
--------------------------------
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: eno1 (primary_reselect always) Currently Active Slave: eno1 MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 500 <<<<<===== Down Delay (ms): 200
Slave Interface: eno1 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: xy.yz... Slave queue ID: 0
Slave Interface: eno3
MII Status: down <<<<<<===== Status shows as down
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: xy.yz...
Slave queue ID: 0
These errors can be seen in /var/log/messages.
May 17 07:14:47 <HOSTNAME> kernel: [ 1652.018328] bondx: link status up for interface eno3, enabling it in 500 ms
May 17 07:14:47 <HOSTNAME> kernel: [ 1652.118322] bondx: link status up for interface eno3, enabling it in 500 ms
May 17 07:14:47 <HOSTNAME> kernel: [ 1652.218309] bondx: link status up for interface eno3, enabling it in 500 ms
May 17 07:14:47 <HOSTNAME> kernel: [ 1652.318304] bondx: link status up for interface eno3, enabling it in 500 ms
May 17 07:14:47 <HOSTNAME> kernel: [ 1652.418293] bondx: link status up for interface eno3, enabling it in 500 ms
May 17 07:14:47 <HOSTNAME> kernel: [ 1652.518277] bondx: link status up for interface eno3, enabling it in 500 ms
Cause
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In this Document
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Cause |
Solution |