[  974.356117][T21533] 8021q: adding VLAN 0 to HW filter on device test-bond0
[  974.357216][T21533] test-bond1: (slave test-bond0): making interface the new active one
[  974.357588][T21533] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link
[  974.623716][T21538] 8021q: adding VLAN 0 to HW filter on device test-bond1
[  974.685614][T21541] test-bond1: entered promiscuous mode
[  974.685779][T21541] test-bond0: entered promiscuous mode
[  975.705327][T21541] test-bond1: left promiscuous mode
[  975.705497][T21541] test-bond0: left promiscuous mode
[  977.339656][T21543] test-dummy0: entered promiscuous mode
[  979.381979][T21543] test-dummy0: left promiscuous mode
[  979.576824][T21546] test-bond1 (unregistering): (slave test-bond0): Releasing backup interface
[  979.587970][T21546] test-bond1 (unregistering): Released all slaves
[  979.657826][T21547] test-bond0 (unregistering): Released all slaves