[  501.929796] bond0: (slave eth0): making interface the new active one
[  501.929877] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.131587] bond0: (slave eth0): Releasing backup interface
[  506.193145] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.360461] bond0: (slave eth0): Releasing backup interface
[  510.396164] bond0 (unregistering): Released all slaves