[  521.466917] bond0: (slave eth0): making interface the new active one
[  521.467003] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.654374] bond0: (slave eth0): Releasing backup interface
[  525.733423] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.885174] bond0: (slave eth0): Releasing backup interface
[  529.914458] bond0 (unregistering): Released all slaves