[  521.387088] bond0: (slave eth0): making interface the new active one
[  521.387212] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.585862] bond0: (slave eth0): Releasing backup interface
[  525.669506] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.815418] bond0: (slave eth0): Releasing backup interface
[  529.844446] bond0 (unregistering): Released all slaves