[  507.525161] bond0: (slave eth0): making interface the new active one
[  507.525255] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.702936] bond0: (slave eth0): Releasing backup interface
[  511.779673] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.924221] bond0: (slave eth0): Releasing backup interface
[  515.950169] bond0 (unregistering): Released all slaves