[  517.754132] bond0: (slave eth0): making interface the new active one
[  517.754215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.941697] bond0: (slave eth0): Releasing backup interface
[  522.021562] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.164366] bond0: (slave eth0): Releasing backup interface
[  526.201402] bond0 (unregistering): Released all slaves