[  521.666748] bond0: (slave eth0): making interface the new active one
[  521.666879] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.834713] bond0: (slave eth0): Releasing backup interface
[  525.897823] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.064234] bond0: (slave eth0): Releasing backup interface
[  530.085782] bond0 (unregistering): Released all slaves