[  515.007231] bond0: (slave eth0): making interface the new active one
[  515.007318] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.191323] bond0: (slave eth0): Releasing backup interface
[  519.295500] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.473952] bond0: (slave eth0): Releasing backup interface
[  523.502903] bond0 (unregistering): Released all slaves