[  532.670141] bond0: (slave eth0): making interface the new active one
[  532.670237] bond0: (slave eth0): Enslaving as an active interface with an up link
[  536.845056] bond0: (slave eth0): Releasing backup interface
[  536.926141] bond0: (slave eth0): Enslaving as an active interface with an up link
[  541.077125] bond0: (slave eth0): Releasing backup interface
[  541.107091] bond0 (unregistering): Released all slaves