[  503.842245] bond0: (slave eth0): making interface the new active one
[  503.842370] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.051207] bond0: (slave eth0): Releasing backup interface
[  508.118694] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.280454] bond0: (slave eth0): Releasing backup interface
[  512.314364] bond0 (unregistering): Released all slaves