[  517.213295] bond0: (slave eth0): making interface the new active one
[  517.213398] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.430362] bond0: (slave eth0): Releasing backup interface
[  521.555376] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.722142] bond0: (slave eth0): Releasing backup interface
[  525.763023] bond0 (unregistering): Released all slaves