[  516.382530] bond0: (slave eth0): making interface the new active one
[  516.382617] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.604546] bond0: (slave eth0): Releasing backup interface
[  520.710654] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.892963] bond0: (slave eth0): Releasing backup interface
[  524.912913] bond0 (unregistering): Released all slaves