[  515.897120] bond0: (slave eth0): making interface the new active one
[  515.897215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.150698] bond0: (slave eth0): Releasing backup interface
[  520.249951] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.435888] bond0: (slave eth0): Releasing backup interface
[  524.461877] bond0 (unregistering): Released all slaves