[  512.620217] bond0: (slave eth0): making interface the new active one
[  512.620323] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.829299] bond0: (slave eth0): Releasing backup interface
[  516.946264] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.107972] bond0: (slave eth0): Releasing backup interface
[  521.138855] bond0 (unregistering): Released all slaves