[  516.535281] bond0: (slave eth0): making interface the new active one
[  516.535403] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.712783] bond0: (slave eth0): Releasing backup interface
[  520.783137] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.945048] bond0: (slave eth0): Releasing backup interface
[  524.975993] bond0 (unregistering): Released all slaves