[  521.674340] bond0: (slave eth0): making interface the new active one
[  521.674438] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.837602] bond0: (slave eth0): Releasing backup interface
[  525.904523] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.068249] bond0: (slave eth0): Releasing backup interface
[  530.105168] bond0 (unregistering): Released all slaves