[  516.211102] bond0: (slave eth0): making interface the new active one
[  516.211190] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.411760] bond0: (slave eth0): Releasing backup interface
[  520.529360] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.695954] bond0: (slave eth0): Releasing backup interface
[  524.713873] bond0 (unregistering): Released all slaves