[  514.765950] bond0: (slave eth0): making interface the new active one
[  514.766046] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.929679] bond0: (slave eth0): Releasing backup interface
[  518.991106] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.157455] bond0: (slave eth0): Releasing backup interface
[  523.187426] bond0 (unregistering): Released all slaves