[  511.297558] bond0: (slave eth0): making interface the new active one
[  511.297685] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.474251] bond0: (slave eth0): Releasing backup interface
[  515.545574] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.702173] bond0: (slave eth0): Releasing backup interface
[  519.728161] bond0 (unregistering): Released all slaves