[  518.654552] bond0: (slave eth0): making interface the new active one
[  518.654642] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.915537] bond0: (slave eth0): Releasing backup interface
[  523.031952] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.259281] bond0: (slave eth0): Releasing backup interface
[  527.286229] bond0 (unregistering): Released all slaves