[  521.879667] bond0: (slave eth0): making interface the new active one
[  521.879784] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.027052] bond0: (slave eth0): Releasing backup interface
[  526.096455] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.255154] bond0: (slave eth0): Releasing backup interface
[  530.288146] bond0 (unregistering): Released all slaves