[  520.163258] bond0: (slave eth0): making interface the new active one
[  520.163341] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.379180] bond0: (slave eth0): Releasing backup interface
[  524.482289] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.668244] bond0: (slave eth0): Releasing backup interface
[  528.697162] bond0 (unregistering): Released all slaves