[  520.113973] bond0: (slave eth0): making interface the new active one
[  520.114040] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.316508] bond0: (slave eth0): Releasing backup interface
[  524.418398] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.596065] bond0: (slave eth0): Releasing backup interface
[  528.634972] bond0 (unregistering): Released all slaves