[  513.243209] bond0: (slave eth0): making interface the new active one
[  513.243294] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.469965] bond0: (slave eth0): Releasing backup interface
[  517.569692] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.754321] bond0: (slave eth0): Releasing backup interface
[  521.779260] bond0 (unregistering): Released all slaves