[  513.923787] bond0: (slave eth0): making interface the new active one
[  513.923857] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.170678] bond0: (slave eth0): Releasing backup interface
[  518.278584] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.453095] bond0: (slave eth0): Releasing backup interface
[  522.492097] bond0 (unregistering): Released all slaves