[  520.585425] bond0: (slave eth0): making interface the new active one
[  520.585532] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.828510] bond0: (slave eth0): Releasing backup interface
[  524.946083] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.114591] bond0: (slave eth0): Releasing backup interface
[  529.148596] bond0 (unregistering): Released all slaves