[  516.279175] bond0: (slave eth0): making interface the new active one
[  516.279250] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.542150] bond0: (slave eth0): Releasing backup interface
[  520.648871] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.822932] bond0: (slave eth0): Releasing backup interface
[  524.849847] bond0 (unregistering): Released all slaves