[  513.874430] bond0: (slave eth0): making interface the new active one
[  513.874522] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.037034] bond0: (slave eth0): Releasing backup interface
[  518.118199] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.272267] bond0: (slave eth0): Releasing backup interface
[  522.313350] bond0 (unregistering): Released all slaves