[  515.021563] bond0: (slave eth0): making interface the new active one
[  515.021654] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.185109] bond0: (slave eth0): Releasing backup interface
[  519.267540] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.415214] bond0: (slave eth0): Releasing backup interface
[  523.441193] bond0 (unregistering): Released all slaves