[  515.011280] bond0: (slave eth0): making interface the new active one
[  515.011370] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.257291] bond0: (slave eth0): Releasing backup interface
[  519.360169] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.548277] bond0: (slave eth0): Releasing backup interface
[  523.581053] bond0 (unregistering): Released all slaves