[  520.408849] bond0: (slave eth0): making interface the new active one
[  520.408949] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.554698] bond0: (slave eth0): Releasing backup interface
[  524.633559] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.777448] bond0: (slave eth0): Releasing backup interface
[  528.799498] bond0 (unregistering): Released all slaves