[  519.434808] bond0: (slave eth0): making interface the new active one
[  519.434922] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.599189] bond0: (slave eth0): Releasing backup interface
[  523.695664] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.890402] bond0: (slave eth0): Releasing backup interface
[  527.923338] bond0 (unregistering): Released all slaves