[  515.872018] bond0: (slave eth0): making interface the new active one
[  515.872114] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.097932] bond0: (slave eth0): Releasing backup interface
[  520.207344] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.386828] bond0: (slave eth0): Releasing backup interface
[  524.416795] bond0 (unregistering): Released all slaves