[  502.624408] bond0: (slave eth0): making interface the new active one
[  502.624504] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.828763] bond0: (slave eth0): Releasing backup interface
[  506.909984] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.058488] bond0: (slave eth0): Releasing backup interface
[  511.095133] bond0 (unregistering): Released all slaves