[  521.474186] bond0: (slave eth0): making interface the new active one
[  521.474258] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.719377] bond0: (slave eth0): Releasing backup interface
[  525.829606] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.013921] bond0: (slave eth0): Releasing backup interface
[  530.036929] bond0 (unregistering): Released all slaves