Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 1696

Complete Software Guide for Junos
Example: Configuring Layer 2 Protocol Tunneling on EX Series Switches
Requirements
Overview and Topology
1592
®
OS for EX Series Ethernet Switches, Release 10.4
Layer 2 protocol tunneling (L2PT) allows you to send Layer 2 protocol data units (PDUs)
across a service provider network and deliver them to EX Series switches that are not
part of the local broadcast domain. This feature is useful when you want to run Layer 2
protocols on a network that includes switches located at remote sites that are connected
across a service provider network.
NOTE: L2PT and VLAN translation configured with the mapping statement
cannot both be configured on the same VLAN. However, L2PT can be
configured on one VLAN on a switch while VLAN translation can be configured
on a different VLAN that has no L2PT.
This example describes how to configure L2PT:
Requirements on page 1592
Overview and Topology on page 1592
Configuration on page 1594
Verification on page 1595
This example uses the following hardware and software components:
Six EX Series switches, with three each at two customer sites, with one of the switches
at each site designated as the provider edge (PE) device
Junos OS Release 10.0 or later for EX Series switches
L2PT allows you to send Layer 2 PDUs across a service provider network and deliver them
to EX Series switches that are not part of the local broadcast domain.
Figure 43 on page 1593 shows a customer network that includes two sites that are connected
across a service provider network. Site 1 contains three switches connected in a Layer 2
network, with Switch A designated as a provider edge (PE) device in the service provider
network. Site 2 contains a Layer 2 network with a similar topology to that of Site 1, with
Switch D designated as a PE device.
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