[  502.699611] bond0: (slave eth0): making interface the new active one
[  502.699703] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.891333] bond0: (slave eth0): Releasing backup interface
[  506.972344] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.114447] bond0: (slave eth0): Releasing backup interface
[  511.136435] bond0 (unregistering): Released all slaves