[  516.646316] bond0: (slave eth0): making interface the new active one
[  516.646420] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.855603] bond0: (slave eth0): Releasing backup interface
[  520.934340] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.081424] bond0: (slave eth0): Releasing backup interface
[  525.115324] bond0 (unregistering): Released all slaves