[  517.219606] bond0: (slave eth0): making interface the new active one
[  517.219677] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.439904] bond0: (slave eth0): Releasing backup interface
[  521.548562] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.780983] bond0: (slave eth0): Releasing backup interface
[  525.811940] bond0 (unregistering): Released all slaves