[  506.571087] bond0: (slave eth0): making interface the new active one
[  506.571173] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.799698] bond0: (slave eth0): Releasing backup interface
[  510.895989] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.087679] bond0: (slave eth0): Releasing backup interface
[  515.121642] bond0 (unregistering): Released all slaves