[  521.438184] bond0: (slave eth0): making interface the new active one
[  521.438250] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.580341] bond0: (slave eth0): Releasing backup interface
[  525.653091] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.804822] bond0: (slave eth0): Releasing backup interface
[  529.838632] bond0 (unregistering): Released all slaves