UCP and UFO
With UFO (Upstream forwarding only) and UCP (Upstream Control Protocol) interfaces can have many different forwarding types.
officer SEC>> set vlan 10 int 10.2 forward upstream
officer SEC>> set vlan 10 int 10.1 forward downstram
officer SEC>> set vlan 10 int 10.2 forward EPSR
officer SEC>> set vlan 10 int 10.2 forward STP
officer SEC>> set vlan 10 int 10.2 forward primaryUpstream
officer SEC>> set vlan 10 int 10.2 forward secondaryUpstream
officer SEC>> set vlan 10 int 10.2 forward ucp