[  519.579627] bond0: (slave eth0): making interface the new active one
[  519.579916] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.805012] bond0: (slave eth0): Releasing backup interface
[  523.908065] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.090210] bond0: (slave eth0): Releasing backup interface
[  528.120233] bond0 (unregistering): Released all slaves