[  511.572136] bond0: (slave eth0): making interface the new active one
[  511.572205] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.796624] bond0: (slave eth0): Releasing backup interface
[  515.878385] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.085830] bond0: (slave eth0): Releasing backup interface
[  520.107820] bond0 (unregistering): Released all slaves