Define the CCC Encapsulation for LSP Tunnel Cross-Connects

To configure LSP tunnel cross-connects, you must configure the CCC encapsulation on the ingress and egress routers (Router B and Router C, respectively, in Figure 30).

NOTE: You cannot configure families on CCC interfaces; that is, you cannot include the family statement at the [edit interfaces interface-name unit logical-unit-number] hierarchy level.

For PPP or Cisco HDLC circuits, specify the encapsulation in the encapsulation statement. This statement configures the entire physical device. For these circuits to work, you must configure logical unit 0 on the interface

interfaces {

    type-fpc/pic/port {

        encapsulation (ppp-ccc | cisco-hdlc-ccc);

        unit 0;

    }

}

You can configure these statements at the following hierarchy levels:

• [edit logical-routers logical-router-name protocols interfaces]
• [edit protocols interfaces]

For ATM circuits, specify the encapsulation when configuring the VC. For each VC, you configure whether it is a circuit or a regular logical interface.

interfaces {

    at-fpc/pic/port {

        atm-options {

            vpi vpi-identifier maximum-vcs maximum-vcs;

        }

        unit logical-unit-number {

            point-to-point;                                 # Default interface type

            encapsulation atm-ccc-vc-mux;

            vci vpi-identifier.vci-identifier;

        }

    }

}

You can configure these statements at the following hierarchy levels:

• [edit logical-routers logical-router-name protocols interfaces]
• [edit protocols interfaces]

For Frame Relay circuits, specify the encapsulation when configuring the DLCI. For each DLCI, you configure whether it is a circuit or a regular logical interface. The DLCI for regular interfaces must be in the range 1 through 511. For CCC interfaces, it must be in the range 512 through 1022.

interfaces {

    type-fpc/pic/port {

        encapsulation frame-relay-ccc;

        unit logical-unit-number {

            point-to-point;                     # default interface type

            encapsulation frame-relay-ccc;

            dlci dlci-identifier;

        }

    }

}

You can configure these statements at the following hierarchy levels:

• [edit logical-routers logical-router-name protocols interfaces]
• [edit protocols interfaces]

For more information about the encapsulation statement, see the JUNOS Network Interfaces and Class of Service Configuration Guide.