[  516.535146] bond0: (slave eth0): making interface the new active one
[  516.535212] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.727287] bond0: (slave eth0): Releasing backup interface
[  520.838736] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.007982] bond0: (slave eth0): Releasing backup interface
[  525.035852] bond0 (unregistering): Released all slaves