[  513.907145] bond0: (slave eth0): making interface the new active one
[  513.907232] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.102579] bond0: (slave eth0): Releasing backup interface
[  518.203075] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.393808] bond0: (slave eth0): Releasing backup interface
[  522.436795] bond0 (unregistering): Released all slaves