[  519.371177] bond0: (slave eth0): making interface the new active one
[  519.371268] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.614734] bond0: (slave eth0): Releasing backup interface
[  523.731608] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.957005] bond0: (slave eth0): Releasing backup interface
[  527.977963] bond0 (unregistering): Released all slaves