[  511.711882] bond0: (slave eth0): making interface the new active one
[  511.711969] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.917682] bond0: (slave eth0): Releasing backup interface
[  516.006096] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.212238] bond0: (slave eth0): Releasing backup interface
[  520.245203] bond0 (unregistering): Released all slaves