[  519.196646] bond0: (slave eth0): making interface the new active one
[  519.196789] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.414248] bond0: (slave eth0): Releasing backup interface
[  523.504780] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.700985] bond0: (slave eth0): Releasing backup interface
[  527.740911] bond0 (unregistering): Released all slaves