[  500.870444] bond0: (slave eth0): making interface the new active one
[  500.870577] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.042610] bond0: (slave eth0): Releasing backup interface
[  505.121828] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.268338] bond0: (slave eth0): Releasing backup interface
[  509.289232] bond0 (unregistering): Released all slaves