[  520.302932] bond0: (slave eth0): making interface the new active one
[  520.303012] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.489717] bond0: (slave eth0): Releasing backup interface
[  524.557520] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.717866] bond0: (slave eth0): Releasing backup interface
[  528.749980] bond0 (unregistering): Released all slaves