Configuring a VLL Service with CLI
Page 184 7750 SR OS Services Guide
The following example displays the Fpipe SAP configurations. 
PE Router 1 (ALA-41):
A:ALA-41>config>service# info
-------------------------------------
...
        fpipe 1 customer 1 create
            description "fpipe test"
            service-mtu 1400
            sap 1/2/1:16 create
               ingress
                   qos 101
               exit
               egress
                   qos 1020
               exit
            exit
            no shutdown
        exit
...
-------------------------------------
A:ALA-41>config>service#
PE Router 2 (ALA-42):
A:ALA-42>config>service# info
-------------------------------------
...
        fpipe 1 customer 1 create
            description "fpipe test"
            service-mtu 1400
            sap 2/1/1.1:16 create
               ingress
                   qos 101
               exit
               egress
                   qos 1020
               exit
            exit
            no shutdown
        exit
...
-------------------------------------
A:ALA-42>config>service#