[  505.726064] bond0: (slave eth0): making interface the new active one
[  505.726145] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.897079] bond0: (slave eth0): Releasing backup interface
[  509.965356] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.128195] bond0: (slave eth0): Releasing backup interface
[  514.176183] bond0 (unregistering): Released all slaves