[  503.354661] bond0: (slave eth0): making interface the new active one
[  503.354727] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.540558] bond0: (slave eth0): Releasing backup interface
[  507.640616] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.837987] bond0: (slave eth0): Releasing backup interface
[  511.864909] bond0 (unregistering): Released all slaves