[  513.261134] bond0: (slave eth0): making interface the new active one
[  513.261208] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.465846] bond0: (slave eth0): Releasing backup interface
[  517.563769] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.755029] bond0: (slave eth0): Releasing backup interface
[  521.780073] bond0 (unregistering): Released all slaves