[  514.738175] bond0: (slave eth0): making interface the new active one
[  514.738271] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.943242] bond0: (slave eth0): Releasing backup interface
[  519.063312] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.286995] bond0: (slave eth0): Releasing backup interface
[  523.324879] bond0 (unregistering): Released all slaves