[  519.894798] bond0: (slave eth0): making interface the new active one
[  519.894875] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.125113] bond0: (slave eth0): Releasing backup interface
[  524.226378] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.409835] bond0: (slave eth0): Releasing backup interface
[  528.435771] bond0 (unregistering): Released all slaves