[  520.929594] bond0: (slave eth0): making interface the new active one
[  520.929688] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.096748] bond0: (slave eth0): Releasing backup interface
[  525.174397] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.329726] bond0: (slave eth0): Releasing backup interface
[  529.363761] bond0 (unregistering): Released all slaves