[  504.959598] bond0: (slave eth0): making interface the new active one
[  504.959737] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.134869] bond0: (slave eth0): Releasing backup interface
[  509.213748] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.361250] bond0: (slave eth0): Releasing backup interface
[  513.387297] bond0 (unregistering): Released all slaves