[  513.032282] bond0: (slave eth0): making interface the new active one
[  513.032386] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.199090] bond0: (slave eth0): Releasing backup interface
[  517.272959] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.423316] bond0: (slave eth0): Releasing backup interface
[  521.450292] bond0 (unregistering): Released all slaves