[  516.243134] bond0: (slave eth0): making interface the new active one
[  516.243208] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.475950] bond0: (slave eth0): Releasing backup interface
[  520.583164] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.768204] bond0: (slave eth0): Releasing backup interface
[  524.800146] bond0 (unregistering): Released all slaves