[  518.561563] bond0: (slave eth0): making interface the new active one
[  518.561632] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.774868] bond0: (slave eth0): Releasing backup interface
[  522.873437] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.060886] bond0: (slave eth0): Releasing backup interface
[  527.093893] bond0 (unregistering): Released all slaves