[  514.965645] bond0: (slave eth0): making interface the new active one
[  514.965709] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.189249] bond0: (slave eth0): Releasing backup interface
[  519.286404] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.480048] bond0: (slave eth0): Releasing backup interface
[  523.511034] bond0 (unregistering): Released all slaves