[  514.506215] bond0: (slave eth0): making interface the new active one
[  514.506320] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.675951] bond0: (slave eth0): Releasing backup interface
[  518.755896] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.900321] bond0: (slave eth0): Releasing backup interface
[  522.922167] bond0 (unregistering): Released all slaves