[  513.053044] bond0: (slave eth0): making interface the new active one
[  513.053146] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.253315] bond0: (slave eth0): Releasing backup interface
[  517.344442] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.535102] bond0: (slave eth0): Releasing backup interface
[  521.564009] bond0 (unregistering): Released all slaves