[  521.959351] bond0: (slave eth0): making interface the new active one
[  521.959444] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.158007] bond0: (slave eth0): Releasing backup interface
[  526.240204] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.385271] bond0: (slave eth0): Releasing backup interface
[  530.414177] bond0 (unregistering): Released all slaves