[  506.957362] bond0: (slave eth0): making interface the new active one
[  506.957433] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.129291] bond0: (slave eth0): Releasing backup interface
[  511.197240] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.359462] bond0: (slave eth0): Releasing backup interface
[  515.387460] bond0 (unregistering): Released all slaves