[  504.278431] bond0: (slave eth0): making interface the new active one
[  504.278517] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.435668] bond0: (slave eth0): Releasing backup interface
[  508.504634] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.661638] bond0: (slave eth0): Releasing backup interface
[  512.693498] bond0 (unregistering): Released all slaves