[  515.908389] bond0: (slave eth0): making interface the new active one
[  515.908482] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.165257] bond0: (slave eth0): Releasing backup interface
[  520.268202] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.446223] bond0: (slave eth0): Releasing backup interface
[  524.469167] bond0 (unregistering): Released all slaves