[  513.208004] bond0: (slave eth0): making interface the new active one
[  513.208081] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.396592] bond0: (slave eth0): Releasing backup interface
[  517.471735] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.627422] bond0: (slave eth0): Releasing backup interface
[  521.657375] bond0 (unregistering): Released all slaves