[  514.983414] bond0: (slave eth0): making interface the new active one
[  514.983506] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.194682] bond0: (slave eth0): Releasing backup interface
[  519.319166] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.550006] bond0: (slave eth0): Releasing backup interface
[  523.585973] bond0 (unregistering): Released all slaves