[  505.163281] bond0: (slave eth0): making interface the new active one
[  505.163563] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.399918] bond0: (slave eth0): Releasing backup interface
[  509.486998] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.681049] bond0: (slave eth0): Releasing backup interface
[  513.717899] bond0 (unregistering): Released all slaves