[  499.356005] bond0: (slave eth0): making interface the new active one
[  499.356093] bond0: (slave eth0): Enslaving as an active interface with an up link
[  503.532391] bond0: (slave eth0): Releasing backup interface
[  503.668126] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.874899] bond0: (slave eth0): Releasing backup interface
[  507.902366] bond0 (unregistering): Released all slaves