[  513.112421] bond0: (slave eth0): making interface the new active one
[  513.112508] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.266851] bond0: (slave eth0): Releasing backup interface
[  517.350332] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.489844] bond0: (slave eth0): Releasing backup interface
[  521.514881] bond0 (unregistering): Released all slaves