[  521.659044] bond0: (slave eth0): making interface the new active one
[  521.659162] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.841493] bond0: (slave eth0): Releasing backup interface
[  525.919437] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.061636] bond0: (slave eth0): Releasing backup interface
[  530.090152] bond0 (unregistering): Released all slaves