[  521.708274] bond0: (slave eth0): making interface the new active one
[  521.708420] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.905164] bond0: (slave eth0): Releasing backup interface
[  525.977206] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.134204] bond0: (slave eth0): Releasing backup interface
[  530.162201] bond0 (unregistering): Released all slaves