[  501.948400] bond0: (slave eth0): making interface the new active one
[  501.948509] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.119549] bond0: (slave eth0): Releasing backup interface
[  506.194171] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.363948] bond0: (slave eth0): Releasing backup interface
[  510.393932] bond0 (unregistering): Released all slaves