[  503.216442] bond0: (slave eth0): making interface the new active one
[  503.216518] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.396613] bond0: (slave eth0): Releasing backup interface
[  507.462678] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.626423] bond0: (slave eth0): Releasing backup interface
[  511.659338] bond0 (unregistering): Released all slaves