[  516.375564] bond0: (slave eth0): making interface the new active one
[  516.375651] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.605162] bond0: (slave eth0): Releasing backup interface
[  520.712913] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.889108] bond0: (slave eth0): Releasing backup interface
[  524.915983] bond0 (unregistering): Released all slaves