OmniSwitch AOS Release 6 Network Configuration Guide September 2009 page 10-1
10 Configuring MPLS
Multiprotocol Label Switching (MPLS) is a label switching technology that provides the ability to set up
connection-oriented paths over a connectionless IP network. MPLS sets up a specific path for a sequence
of packets. The packets are identified by a label inserted into each packet.
This implementation of MPLS provides the network architecture that is needed to set up a Virtual Private
LAN Service (VPLS). VPLS allows multiple customer sites to transparently connect through a single
bridging domain over an IP/MPLS-based network.
The MPLS architecture provided is based on the Label Distribution Protocol (LDP). The LDP consists of a
set of procedures used by participating Label Switching Routers (LSRs) to define Label Switched Paths
(LSPs), also referred to as MPLS tunnels. These tunnels provide the foundation necessary to provision
VPLS.
This chapter documents the OmniSwitch implementation of an LDP-based MPLS network architecture.
For information about how to configure VPLS, see Chapter 11, “Configuring VPLS.”.
In This Chapter
This chapter describes the basic components of MPLS and how to configure them through the Command
Line Interface (CLI). CLI commands are used in the configuration examples; for more details about the
syntax of commands, see the Omniswitch CLI Reference Guide.
The following information and procedures are included in this chapter:
• “MPLS Specifications” on page 10-2.
• “MPLS Defaults” on page 10-3.
• “Quick Steps for Configuring MPLS” on page 10-4.
• “MPLS Overview” on page 10-12.
• “Interaction With Other Features” on page 10-16.
• “Interoperability With Alcatel-Lucent SR Series” on page 10-17.
• “Configuring MPLS” on page 10-18.
• “MPLS Application Example” on page 10-30.
• “Verifying the MPLS Configuration” on page 10-41.
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