[  520.474040] bond0: (slave eth0): making interface the new active one
[  520.474110] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.617972] bond0: (slave eth0): Releasing backup interface
[  524.681951] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.848178] bond0: (slave eth0): Releasing backup interface
[  528.881785] bond0 (unregistering): Released all slaves