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Example: Configuring a TCC

Configure a full-duplex switching translational cross-connect with PPP TCC encapsulation between Router A and Router C, using a Juniper Networks routing platform, Router B, as the virtual switch. See the topology in Figure 11.

In this topology, Router B has a PPP connection to Router A and an ATM connection to Router C.

Figure 11: Layer 2.5 Switching Translational Cross-Connect

Image g017013.gif

On Router A



[edit]
interfaces {


so-0/1/0 {
description "to Router B so-1/0/0";
encapsulation ppp;


unit 0 {


family inet {
address 10.1.1.1/30;
}


}


}


}

On Router B



[edit]
interfaces {


so-1/0/0 {
description "to Router A so-0/1/0";
encapsulation ppp-tcc;


unit 0 {
}


}




at-1/1/0 {
description "to Router C at-0/3/0";


atm-options {
vpi 0 maximum-vcs 2000;
}




unit 32 {
vci 32;
encapsulation atm-tcc-vc-mux;
}


}


}
[edit]
protocols {


mpls {
interface so-1/0/0.0;
interface at-1/1/0.32;
}




connections {


interface-switch PPP-to-ATM {
interface so-1/0/0.0;
interface at-1/1/0.32;
}


}


}

On Router C



[edit]
interfaces {


at-0/3/0 {
description "to Router B at-1/1/0";


atm-options {
vpi 0 maximum-vcs 2000;
}




unit 32 {
vci 32;
encapsulation atm-vc-mux;


family inet {
address 10.1.1.2/30;
}


}


}


}

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