[  516.993326] bond0: (slave eth0): making interface the new active one
[  516.993422] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.241000] bond0: (slave eth0): Releasing backup interface
[  521.342574] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.545463] bond0: (slave eth0): Releasing backup interface
[  525.570543] bond0 (unregistering): Released all slaves