[  516.702955] bond0: (slave eth0): making interface the new active one
[  516.703049] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.925800] bond0: (slave eth0): Releasing backup interface
[  521.028935] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.210045] bond0: (slave eth0): Releasing backup interface
[  525.240969] bond0 (unregistering): Released all slaves