[  516.356889] bond0: (slave eth0): making interface the new active one
[  516.357001] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.534558] bond0: (slave eth0): Releasing backup interface
[  520.609640] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.757186] bond0: (slave eth0): Releasing backup interface
[  524.788181] bond0 (unregistering): Released all slaves