[  506.876255] bond0: (slave eth0): making interface the new active one
[  506.876369] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.050775] bond0: (slave eth0): Releasing backup interface
[  511.124046] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.284233] bond0: (slave eth0): Releasing backup interface
[  515.316575] bond0 (unregistering): Released all slaves