[  521.301680] bond0: (slave eth0): making interface the new active one
[  521.301757] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.519973] bond0: (slave eth0): Releasing backup interface
[  525.594220] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.749379] bond0: (slave eth0): Releasing backup interface
[  529.785845] bond0 (unregistering): Released all slaves