[  509.213479] bond0: (slave eth0): making interface the new active one
[  509.213562] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.435350] bond0: (slave eth0): Releasing backup interface
[  513.546764] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.723054] bond0: (slave eth0): Releasing backup interface
[  517.756912] bond0 (unregistering): Released all slaves