[  521.700177] bond0: (slave eth0): making interface the new active one
[  521.700269] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.846572] bond0: (slave eth0): Releasing backup interface
[  525.926251] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.076151] bond0: (slave eth0): Releasing backup interface
[  530.119993] bond0 (unregistering): Released all slaves