[  505.250103] bond0: (slave eth0): making interface the new active one
[  505.250199] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.463799] bond0: (slave eth0): Releasing backup interface
[  509.542114] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.687853] bond0: (slave eth0): Releasing backup interface
[  513.713839] bond0 (unregistering): Released all slaves