[  520.548964] bond0: (slave eth0): making interface the new active one
[  520.549049] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.743048] bond0: (slave eth0): Releasing backup interface
[  524.817560] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.962295] bond0: (slave eth0): Releasing backup interface
[  528.986254] bond0 (unregistering): Released all slaves