[  520.847529] bond0: (slave eth0): making interface the new active one
[  520.847667] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.003414] bond0: (slave eth0): Releasing backup interface
[  525.075936] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.230146] bond0: (slave eth0): Releasing backup interface
[  529.257123] bond0 (unregistering): Released all slaves