[  516.695627] bond0: (slave eth0): making interface the new active one
[  516.695702] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.925702] bond0: (slave eth0): Releasing backup interface
[  521.036006] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.207051] bond0: (slave eth0): Releasing backup interface
[  525.238977] bond0 (unregistering): Released all slaves