[  521.454984] bond0: (slave eth0): making interface the new active one
[  521.455082] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.646064] bond0: (slave eth0): Releasing backup interface
[  525.721388] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.871771] bond0: (slave eth0): Releasing backup interface
[  529.903827] bond0 (unregistering): Released all slaves