[  504.662947] bond0: (slave eth0): making interface the new active one
[  504.663027] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.881505] bond0: (slave eth0): Releasing backup interface
[  508.980370] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.168831] bond0: (slave eth0): Releasing backup interface
[  513.200746] bond0 (unregistering): Released all slaves