[  503.284638] bond0: (slave eth0): making interface the new active one
[  503.284706] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.473351] bond0: (slave eth0): Releasing backup interface
[  507.545968] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.704342] bond0: (slave eth0): Releasing backup interface
[  511.737274] bond0 (unregistering): Released all slaves