VPLS SAP DHCP snooping commands

config
    - service
        - vpls service-id [customer customer-id] [create] [vpn vpn-id] [m-vpls] [r-vpls] [svc-sap-type {null-star | dot1q-preserve | any}] [customer-vid vlan-id] [allow-l2pt-xstp-bpdu enable | disable]
        - vpls service-id [customer customer-id] [create] [vpn vpn-id] [m-vpls] [customer-vid vlan-id] [svc-sap-type {null-star | dot1q-preserve | any}] [r-vpls]
        - no vpls service-id
            - sap sap-id [split-horizon-group group-name] [g8032-shg-enable] [eth-ring ring-index]
            - no sap sap-id 
                - dhcp
                    - description description-string
                    - no description
                    - [no] option
                        - action [dhcp-action]
                        - no action
                        - [no] circuit-id [ascii-tuple | vlan-ascii-tuple]
                        - [no] remote-id [mac | string string]
                        - [no] vendor-specific-option
                            - [no] client-mac-address
                            - [no] sap-id
                            - [no] service-id
                            - string text
                            - no string
                            - [no] system-id
                    - [no] shutdown
                    - [no] snoop