[  511.985369] bond0: (slave eth0): making interface the new active one
[  511.985513] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.173916] bond0: (slave eth0): Releasing backup interface
[  516.235023] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.406191] bond0: (slave eth0): Releasing backup interface
[  520.434179] bond0 (unregistering): Released all slaves