[  515.702152] bond0: (slave eth0): making interface the new active one
[  515.702270] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.882890] bond0: (slave eth0): Releasing backup interface
[  519.953684] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.108239] bond0: (slave eth0): Releasing backup interface
[  524.147371] bond0 (unregistering): Released all slaves