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In this topology, Router B has a PPP connection to Router A and an ATM connection
to Router C.
Figure 12: Layer 2.5 Switching Translational Cross-Connect
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;
}
}
Chapter 6: Configuring Circuit and Translational Cross-Connects
Example: Configuring a TCC
241
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