[  520.185924] bond0: (slave eth0): making interface the new active one
[  520.185996] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.383001] bond0: (slave eth0): Releasing backup interface
[  524.499633] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.667063] bond0: (slave eth0): Releasing backup interface
[  528.697005] bond0 (unregistering): Released all slaves