[  519.294969] bond0: (slave eth0): making interface the new active one
[  519.295103] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.468850] bond0: (slave eth0): Releasing backup interface
[  523.538800] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.695421] bond0: (slave eth0): Releasing backup interface
[  527.712148] bond0 (unregistering): Released all slaves