[  513.902887] bond0: (slave eth0): making interface the new active one
[  513.902995] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.099109] bond0: (slave eth0): Releasing backup interface
[  518.181020] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.321445] bond0: (slave eth0): Releasing backup interface
[  522.347246] bond0 (unregistering): Released all slaves