[  516.475423] bond0: (slave eth0): making interface the new active one
[  516.475491] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.659708] bond0: (slave eth0): Releasing backup interface
[  520.764820] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.951996] bond0: (slave eth0): Releasing backup interface
[  524.991980] bond0 (unregistering): Released all slaves