[  516.758859] bond0: (slave eth0): making interface the new active one
[  516.758958] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.987850] bond0: (slave eth0): Releasing backup interface
[  521.092325] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.272027] bond0: (slave eth0): Releasing backup interface
[  525.300952] bond0 (unregistering): Released all slaves