Defining 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, include the encapsulation statement to configure the entire physical device. For these circuits to work, you must configure logical unit 0 on the interface.

type-fpc/pic/port {

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

    unit 0;

}

You can include these statements at the following hierarchy levels:

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

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

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 include these statements at the following hierarchy levels:

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

For Frame Relay circuits, include the following statements to 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.

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 include these statements at the following hierarchy levels:

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

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