[  516.133512] bond0: (slave eth0): making interface the new active one
[  516.133634] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.337677] bond0: (slave eth0): Releasing backup interface
[  520.399644] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.569228] bond0: (slave eth0): Releasing backup interface
[  524.597168] bond0 (unregistering): Released all slaves