[  673.162498] bond0: (slave eth0): making interface the new active one
[  673.162593] bond0: (slave eth0): Enslaving as an active interface with an up link
[  677.324051] bond0: (slave eth0): Releasing backup interface
[  677.394139] bond0: (slave eth0): Enslaving as an active interface with an up link
[  681.548370] bond0: (slave eth0): Releasing backup interface
[  681.575376] bond0 (unregistering): Released all slaves