[  513.900610] bond0: (slave eth0): making interface the new active one
[  513.900704] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.115533] bond0: (slave eth0): Releasing backup interface
[  518.245205] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.463116] bond0: (slave eth0): Releasing backup interface
[  522.500012] bond0 (unregistering): Released all slaves