[  521.842491] bond0: (slave eth0): making interface the new active one
[  521.842578] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.034605] bond0: (slave eth0): Releasing backup interface
[  526.091421] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.263469] bond0: (slave eth0): Releasing backup interface
[  530.304184] bond0 (unregistering): Released all slaves