[  515.482016] bond0: (slave eth0): making interface the new active one
[  515.482089] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.726517] bond0: (slave eth0): Releasing backup interface
[  519.836089] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.012100] bond0: (slave eth0): Releasing backup interface
[  524.037992] bond0 (unregistering): Released all slaves