[  503.013218] bond0: (slave eth0): making interface the new active one
[  503.013328] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.211506] bond0: (slave eth0): Releasing backup interface
[  507.290298] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.432237] bond0: (slave eth0): Releasing backup interface
[  511.456213] bond0 (unregistering): Released all slaves