[  513.100271] bond0: (slave eth0): making interface the new active one
[  513.100347] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.273050] bond0: (slave eth0): Releasing backup interface
[  517.355216] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.502785] bond0: (slave eth0): Releasing backup interface
[  521.532349] bond0 (unregistering): Released all slaves