[  520.168311] bond0: (slave eth0): making interface the new active one
[  520.168393] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.383301] bond0: (slave eth0): Releasing backup interface
[  524.496840] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.726095] bond0: (slave eth0): Releasing backup interface
[  528.764311] bond0 (unregistering): Released all slaves