[  513.067291] bond0: (slave eth0): making interface the new active one
[  513.067432] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.262136] bond0: (slave eth0): Releasing backup interface
[  517.347813] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.553198] bond0: (slave eth0): Releasing backup interface
[  521.581077] bond0 (unregistering): Released all slaves