[  516.538088] bond0: (slave eth0): making interface the new active one
[  516.538161] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.801407] bond0: (slave eth0): Releasing backup interface
[  520.920217] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.143100] bond0: (slave eth0): Releasing backup interface
[  525.174987] bond0 (unregistering): Released all slaves