[  502.392507] bond0: (slave eth0): making interface the new active one
[  502.392624] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.577936] bond0: (slave eth0): Releasing backup interface
[  506.653148] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.809731] bond0: (slave eth0): Releasing backup interface
[  510.833490] bond0 (unregistering): Released all slaves