[  514.868487] bond0: (slave eth0): making interface the new active one
[  514.868567] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.072047] bond0: (slave eth0): Releasing backup interface
[  519.193862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.415074] bond0: (slave eth0): Releasing backup interface
[  523.442994] bond0 (unregistering): Released all slaves