[  513.962462] bond0: (slave eth0): making interface the new active one
[  513.962536] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.168036] bond0: (slave eth0): Releasing backup interface
[  518.279639] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.465693] bond0: (slave eth0): Releasing backup interface
[  522.503207] bond0 (unregistering): Released all slaves