[  513.955061] bond0: (slave eth0): making interface the new active one
[  513.955133] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.175612] bond0: (slave eth0): Releasing backup interface
[  518.282083] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.461974] bond0: (slave eth0): Releasing backup interface
[  522.487964] bond0 (unregistering): Released all slaves