[  513.653793] bond0: (slave eth0): making interface the new active one
[  513.653895] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.854166] bond0: (slave eth0): Releasing backup interface
[  517.974171] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.197967] bond0: (slave eth0): Releasing backup interface
[  522.233896] bond0 (unregistering): Released all slaves