[  517.673463] bond0: (slave eth0): making interface the new active one
[  517.673555] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.885158] bond0: (slave eth0): Releasing backup interface
[  522.001744] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.233288] bond0: (slave eth0): Releasing backup interface
[  526.261056] bond0 (unregistering): Released all slaves