[  540.881777] bond0: (slave eth0): making interface the new active one
[  540.881856] bond0: (slave eth0): Enslaving as an active interface with an up link
[  545.106576] bond0: (slave eth0): Releasing backup interface
[  545.204685] bond0: (slave eth0): Enslaving as an active interface with an up link
[  549.397171] bond0: (slave eth0): Releasing backup interface
[  549.442689] bond0 (unregistering): Released all slaves