[  515.413183] bond0: (slave eth0): making interface the new active one
[  515.413300] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.786003] bond0: (slave eth0): Releasing backup interface
[  519.922980] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.130108] bond0: (slave eth0): Releasing backup interface
[  524.160048] bond0 (unregistering): Released all slaves