[  521.603794] bond0: (slave eth0): making interface the new active one
[  521.603896] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.770697] bond0: (slave eth0): Releasing backup interface
[  525.845300] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.001549] bond0: (slave eth0): Releasing backup interface
[  530.029255] bond0 (unregistering): Released all slaves