[  519.848396] bond0: (slave eth0): making interface the new active one
[  519.848481] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.042685] bond0: (slave eth0): Releasing backup interface
[  524.115702] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.273250] bond0: (slave eth0): Releasing backup interface
[  528.302517] bond0 (unregistering): Released all slaves