Configuring MPLS, MPLS VPN, MPLS OAM, and
EoMPLS
This chapter describes how to configure multiprotocol label switching (MPLS) and Ethernet over MPLS
(EoMPLS) on the Cisco ME 3800X and ME 3600X switches. MPLS is a packet-switching technology
that integrates link layer (Layer 2) switching with network layer (Layer 3) routing. With MPLS, data is
transferred over any combination of Layer 2 technologies, using any Layer 3 protocol, with increased
scalability. MPLS supports different routes between a source and destination over a router-based Internet
backbone.
MPLS virtual private networks (VPNs) provides the capability to deploy and administer scalable
•
Layer 3 VPN backbone services to business customers. A VPN is a secure IP-based network that
shares resources on one or more physical networks.
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Cisco IOS Release 12.2(52)EY supports:
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EoMPLS is a tunneling mechanism that transports Layer 2 Ethernet frames over an MPLS network.
You can connect two Layer 2 networks that are in different locations, without bridges, routers, or
switches at the locations. You enable the MPLS backbone to accept Layer 2 traffic by configuring
the label-edge routers (LERs) at both ends of the MPLS backbone.
Note
For more information about MPLS, see the "Multiprotocol Label Switching" section of the Cisco IOS
Switching Services Configuration Guide for Release 12.2 t this URL:
http://www.cisco.com/en/US/docs/ios/12_2/switch/configuration/guide/xcftagc_ps1835_TSD_
Products_Configuration_Guide_Chapter.html
For complete syntax and usage information for the MPLS commands used in this chapter, see this URL:
http://www.cisco.com/en/US/docs/ios/mpls/command/reference/mp_book.html
This chapter contains these sections:
•
Understanding MPLS Services, page 34-2
•
Understanding MPLS VPNs, page 34-4
OL-23400-01
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MPLS Operations, Administration, and Maintenance (OAM) functionality to allow service
providers to monitor label switched path (LSP) integrity and to quickly isolate MPLS
forwarding problems.
MPLS IP Service Level Agreements (IP SLAs).
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MPLS traffic engineering fast reroute link protection. This feature provides link protection to
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label-switched paths (LSPs), enabling LSP traffic that crosses a failed link to be rerouted around
the failure.
C H A P T E R
Cisco ME 3800X and 3600X Switch Software Configuration Guide
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34-1