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Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

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Junos ®<br />

<strong>OS</strong> 12.3 <strong>Ethernet</strong> <strong>Interfaces</strong> <strong>Configuration</strong> Guide<br />

166<br />

On Router B interfaces<br />

Configuring an<br />

Extended VLAN TCC<br />

If traffic flows from Router A to Router C, the Junos <strong>OS</strong> strips all PPP encapsulation data<br />

from incoming packets and adds <strong>Ethernet</strong> encapsulation data before forwarding the<br />

packets. If traffic flows from Router C to Router A, the Junos <strong>OS</strong> strips all <strong>Ethernet</strong><br />

encapsulation data from incoming packets and adds PPP encapsulation data before<br />

forwarding the packets.<br />

Figure 15: Topology of Layer 2.5 Translational Cross-Connect<br />

Configure a full-duplex Layer 2.5 translational cross-connect between Router A and<br />

Router C, using a <strong>Juniper</strong> <strong>Networks</strong> router, Router B, as the TCC interface. Extended VLAN<br />

TCC encapsulation provides an <strong>Ethernet</strong> wide area circuit for interconnecting IP traffic.<br />

(See the topology in Figure 15 on page 166.)<br />

The Router A-to-Router B circuit is PPP, and the Router B-to-Router C circuit is <strong>Ethernet</strong><br />

with VLAN tagging enabled.<br />

On Router B interfaces<br />

ge-0/0/0 {<br />

vlan-tagging;<br />

encapsulation extended-vlan-tcc;<br />

unit 0 {<br />

vlan-id 1;<br />

family tcc {<br />

proxy {<br />

inet-address 10.10.10.3;<br />

}<br />

remote {<br />

inet-address 10.10.10.2;<br />

}<br />

}<br />

}<br />

Related<br />

Documentation<br />

• encapsulation<br />

• remote<br />

• proxy<br />

• TCC and Layer 2.5 Switching Overview on page 163<br />

• Configuring VLAN TCC Encapsulation on page 163<br />

• <strong>Junos®</strong> <strong>OS</strong> <strong>Ethernet</strong> <strong>Interfaces</strong><br />

Copyright © 2012, <strong>Juniper</strong> <strong>Networks</strong>, Inc.

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