[  513.246513] bond0: (slave eth0): making interface the new active one
[  513.246618] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.465270] bond0: (slave eth0): Releasing backup interface
[  517.576397] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.751059] bond0: (slave eth0): Releasing backup interface
[  521.780994] bond0 (unregistering): Released all slaves