[  514.967764] bond0: (slave eth0): making interface the new active one
[  514.967885] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.126230] bond0: (slave eth0): Releasing backup interface
[  519.215647] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.348404] bond0: (slave eth0): Releasing backup interface
[  523.375394] bond0 (unregistering): Released all slaves