[  516.003330] bond0: (slave eth0): making interface the new active one
[  516.003411] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.216273] bond0: (slave eth0): Releasing backup interface
[  520.306094] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.503266] bond0: (slave eth0): Releasing backup interface
[  524.541158] bond0 (unregistering): Released all slaves