[  521.535531] bond0: (slave eth0): making interface the new active one
[  521.535628] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.704228] bond0: (slave eth0): Releasing backup interface
[  525.777425] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.935026] bond0: (slave eth0): Releasing backup interface
[  529.970035] bond0 (unregistering): Released all slaves