[  510.880919] bond0: (slave eth0): making interface the new active one
[  510.881002] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.095119] bond0: (slave eth0): Releasing backup interface
[  515.192400] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.374993] bond0: (slave eth0): Releasing backup interface
[  519.392958] bond0 (unregistering): Released all slaves