[  516.700551] bond0: (slave eth0): making interface the new active one
[  516.700640] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.920119] bond0: (slave eth0): Releasing backup interface
[  521.000164] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.148488] bond0: (slave eth0): Releasing backup interface
[  525.171498] bond0 (unregistering): Released all slaves