[  502.212651] bond0: (slave eth0): making interface the new active one
[  502.212767] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.380536] bond0: (slave eth0): Releasing backup interface
[  506.454486] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.606368] bond0: (slave eth0): Releasing backup interface
[  510.638299] bond0 (unregistering): Released all slaves