[  508.265722] bond0: (slave eth0): making interface the new active one
[  508.265818] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.474429] bond0: (slave eth0): Releasing backup interface
[  512.590634] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.756977] bond0: (slave eth0): Releasing backup interface
[  516.784995] bond0 (unregistering): Released all slaves