[  520.602819] bond0: (slave eth0): making interface the new active one
[  520.602910] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.746651] bond0: (slave eth0): Releasing backup interface
[  524.812481] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.975269] bond0: (slave eth0): Releasing backup interface
[  529.007805] bond0 (unregistering): Released all slaves