[  521.549094] bond0: (slave eth0): making interface the new active one
[  521.549200] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.722143] bond0: (slave eth0): Releasing backup interface
[  525.801457] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.949367] bond0: (slave eth0): Releasing backup interface
[  529.986242] bond0 (unregistering): Released all slaves