[  519.098789] bond0: (slave eth0): making interface the new active one
[  519.098921] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.282826] bond0: (slave eth0): Releasing backup interface
[  523.345615] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.513376] bond0: (slave eth0): Releasing backup interface
[  527.550277] bond0 (unregistering): Released all slaves