[  516.327931] bond0: (slave eth0): making interface the new active one
[  516.328027] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.519215] bond0: (slave eth0): Releasing backup interface
[  520.578005] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.744276] bond0: (slave eth0): Releasing backup interface
[  524.781017] bond0 (unregistering): Released all slaves