[  499.788320] bond0: (slave eth0): making interface the new active one
[  499.788427] bond0: (slave eth0): Enslaving as an active interface with an up link
[  503.946388] bond0: (slave eth0): Releasing backup interface
[  504.022727] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.172549] bond0: (slave eth0): Releasing backup interface
[  508.208482] bond0 (unregistering): Released all slaves