VLAN tagging (802.1q) failover on bonded interface not working in RHEL 6.3?

Solution Verified - Updated -

Issue

  • Network interfaces are bonded together using active-backup mode and vlan tagged interfaces are created on top of the bond.
  • Bonding works perfectly but failover does not happen if the current active interface goes down.
[root@xxxx ~]# cat /sys/class/net/bond0.131/operstate 
lowerlayerdown
  • This works properly if vlan tagging is not used.

Environment

  • Red Hat Enterprise Linux 6.3
  • Bonded Network Interfaces and VLAN tagging (802.1q)

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