[  514.666477] bond0: (slave eth0): making interface the new active one
[  514.666568] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.875749] bond0: (slave eth0): Releasing backup interface
[  518.981114] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.158281] bond0: (slave eth0): Releasing backup interface
[  523.193221] bond0 (unregistering): Released all slaves