[  519.955582] bond0: (slave eth0): making interface the new active one
[  519.955675] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.120714] bond0: (slave eth0): Releasing backup interface
[  524.200725] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.348945] bond0: (slave eth0): Releasing backup interface
[  528.379467] bond0 (unregistering): Released all slaves