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Example: Configuring LSP Tunnel Cross-Connects

Configure a full-duplex MPLS LSP tunnel cross-connect from Router A to Router D, passing through Router B and Router C. See the topology in Figure 31.

Figure 31: Example Topology of MPLS LSP Tunnel Cross-Connect

Image g017094.gif

On Router B:



[edit]
interfaces {


at-7/1/1 {


atm-options {
vpi 1 maximum-vcs 600;
}




unit 1 {
point-to-point; # default interface type
encapsulation atm-ccc-vc-mux;
vci 1.234;
}


}


}
protocols {


connections {


remote-interface-switch router-b-to-router-c { 
interface at-7/1/1.1;
transmit-lsp lsp1;
receive-lsp lsp2;
}


}


}

On Router C:



[edit]
interfaces {


at-3/0/0 {


atm-options {
vpi 2 maximum-vcs 600;
}




unit 2 {
point-to-point; # default interface type
encapsulation atm-ccc-vc-mux;
vci 2.591;
}


}


}
protocols {


connections {


remote-interface-switch router-b-to-router-c {
interface at-3/0/0.2;
transmit-lsp lsp2;
receive-lsp lsp1;
}


}


}

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