[  516.379741] bond0: (slave eth0): making interface the new active one
[  516.379850] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.609186] bond0: (slave eth0): Releasing backup interface
[  520.710571] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.893578] bond0: (slave eth0): Releasing backup interface
[  524.923249] bond0 (unregistering): Released all slaves