[  521.753660] bond0: (slave eth0): making interface the new active one
[  521.753767] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.962769] bond0: (slave eth0): Releasing backup interface
[  526.033314] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.196467] bond0: (slave eth0): Releasing backup interface
[  530.229454] bond0 (unregistering): Released all slaves