[  519.420813] bond0: (slave eth0): making interface the new active one
[  519.420951] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.603513] bond0: (slave eth0): Releasing backup interface
[  523.683083] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.828254] bond0: (slave eth0): Releasing backup interface
[  527.854181] bond0 (unregistering): Released all slaves