[  513.761040] bond0: (slave eth0): making interface the new active one
[  513.761117] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.974271] bond0: (slave eth0): Releasing backup interface
[  518.061714] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.261022] bond0: (slave eth0): Releasing backup interface
[  522.293034] bond0 (unregistering): Released all slaves