[  517.088124] bond0: (slave eth0): making interface the new active one
[  517.088195] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.275877] bond0: (slave eth0): Releasing backup interface
[  521.382415] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.570737] bond0: (slave eth0): Releasing backup interface
[  525.606592] bond0 (unregistering): Released all slaves