[  515.739520] bond0: (slave eth0): making interface the new active one
[  515.739625] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.958444] bond0: (slave eth0): Releasing backup interface
[  520.041119] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.187790] bond0: (slave eth0): Releasing backup interface
[  524.208465] bond0 (unregistering): Released all slaves