[  500.230164] bond0: (slave eth0): making interface the new active one
[  500.230256] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.405391] bond0: (slave eth0): Releasing backup interface
[  504.481362] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.633535] bond0: (slave eth0): Releasing backup interface
[  508.659417] bond0 (unregistering): Released all slaves