[  520.156513] bond0: (slave eth0): making interface the new active one
[  520.156628] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.363787] bond0: (slave eth0): Releasing backup interface
[  524.442798] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.585890] bond0: (slave eth0): Releasing backup interface
[  528.602888] bond0 (unregistering): Released all slaves