[Contents] [Prev] [Next] [Index] [Report an Error]

Defining the Encapsulation for Layer 2 TCC Switching

To begin implementation of Layer 2 TCC switching, configure TCC encapsulation on the desired interfaces of the router that is acting as the switch (Router B in Figure 66).

Note: You cannot configure standard protocol families on TCC or CCC interfaces. Only the CCC family is allowed on CCC-encapsulated interfaces. Likewise, only the TCC family is allowed on TCC-encapsulated interfaces.

For ATM connections, specify the encapsulation type when configuring ATM virtual circuits (VCs) at the [edit interfaces interface-name unit unit-number] hierarchy level. For each VC, you configure whether it is a circuit or a regular logical interface. The default interface type is point-to-point.



[edit]
interfaces {


at-fpc/pic/port {


atm-options {
vpi vpi-identifier  maximum-vcs maximum-vcs;
}




unit logical-unit-number {
point-to-point; # This is the default interface type.
encapsulation (atm-tcc-vc-mux | atm-tcc-snap);
vci vpi-identifier.vci-identifier;
}


}


}

For Cisco HDLC and PPP circuits, specify the encapsulation in the encapsulation statement at the [edit interfaces interface-name] hierarchy level. This statement configures the entire physical device. Also, you must configure the logical interface unit 0 .



[edit]
interfaces {



type-fpc/pic/port {
encapsulation (cisco-hdlc-tcc | ppp-tcc);
unit 0;
}


}

You can specify the encapsulation for Frame Relay circuits at the [edit interfaces interface-name] hierarchy level and the [edit interfaces interface-name unit unit-number] hierarchy level. For TCC and CCC interfaces, the DLCI value must be configured in the range of 512 through 1022. The default interface type is point-to-point.



[edit]
interfaces {



type-fpc/pic/port                {
encapsulation frame-relay-tcc;


unit logical-unit-number {
point-to-point; # This is the default interface type.
encapsulation frame-relay-tcc;
dlci dlci-identifier;
}


}


}

[Contents] [Prev] [Next] [Index] [Report an Error]