[  503.356122] bond0: (slave eth0): making interface the new active one
[  503.356201] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.542202] bond0: (slave eth0): Releasing backup interface
[  507.625593] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.767624] bond0: (slave eth0): Releasing backup interface
[  511.796612] bond0 (unregistering): Released all slaves