[  501.411779] bond0: (slave eth0): making interface the new active one
[  501.411873] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.618959] bond0: (slave eth0): Releasing backup interface
[  505.697654] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.850382] bond0: (slave eth0): Releasing backup interface
[  509.884257] bond0 (unregistering): Released all slaves