[  517.072052] bond0: (slave eth0): making interface the new active one
[  517.072144] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.243889] bond0: (slave eth0): Releasing backup interface
[  521.317444] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.476373] bond0: (slave eth0): Releasing backup interface
[  525.503300] bond0 (unregistering): Released all slaves