[  521.618453] bond0: (slave eth0): making interface the new active one
[  521.618543] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.767395] bond0: (slave eth0): Releasing backup interface
[  525.826173] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.999281] bond0: (slave eth0): Releasing backup interface
[  530.026083] bond0 (unregistering): Released all slaves