[  521.743806] bond0: (slave eth0): making interface the new active one
[  521.743915] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.897320] bond0: (slave eth0): Releasing backup interface
[  525.966844] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.130675] bond0: (slave eth0): Releasing backup interface
[  530.171720] bond0 (unregistering): Released all slaves