[  515.336574] bond0: (slave eth0): making interface the new active one
[  515.336680] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.580674] bond0: (slave eth0): Releasing backup interface
[  519.702423] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.874196] bond0: (slave eth0): Releasing backup interface
[  523.917307] bond0 (unregistering): Released all slaves