[  513.770822] bond0: (slave eth0): making interface the new active one
[  513.770929] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.977592] bond0: (slave eth0): Releasing backup interface
[  518.105381] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.327088] bond0: (slave eth0): Releasing backup interface
[  522.358911] bond0 (unregistering): Released all slaves