[  521.903088] bond0: (slave eth0): making interface the new active one
[  521.903175] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.090712] bond0: (slave eth0): Releasing backup interface
[  526.157851] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.317050] bond0: (slave eth0): Releasing backup interface
[  530.348070] bond0 (unregistering): Released all slaves