[  960.059316][T21511] bond0: (slave eth0): making interface the new active one
[  960.059745][T21511] bond0: (slave eth0): Enslaving as an active interface with an up link
[  960.108441][T21512] 8021q: adding VLAN 0 to HW filter on device bond0
[  964.377945][T21515] bond0: (slave eth0): Releasing backup interface
[  964.588632][T21518] bond0: (slave eth0): Enslaving as an active interface with an up link
[  964.650479][T21519] 8021q: adding VLAN 0 to HW filter on device bond0
[  968.822406][  T217] bond0: (slave eth0): Releasing backup interface
[  968.866128][  T217] bond0 (unregistering): Released all slaves