[  516.057087] bond0: (slave eth0): making interface the new active one
[  516.057163] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.210720] bond0: (slave eth0): Releasing backup interface
[  520.289858] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.441444] bond0: (slave eth0): Releasing backup interface
[  524.475466] bond0 (unregistering): Released all slaves