[  509.230487] bond0: (slave eth0): making interface the new active one
[  509.230580] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.427854] bond0: (slave eth0): Releasing backup interface
[  513.529698] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.717933] bond0: (slave eth0): Releasing backup interface
[  517.757818] bond0 (unregistering): Released all slaves