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Riverstone Networks RS Switch Router User Guide Release 8.0 17-1
17 MPLS CONFIGURATION
Multiprotocol Label Switching (MPLS) is a technology that enables routers to forward traffic based on a simple
label embedded into the packet header. A router can simply examine the label to determine the next hop for the
packet, rather than perform a much more complex route lookup on the destination IP address.While originally
designed to speed up layer 3 routing of packets, label-based switching can provide other benefits to IP networks.
Riverstone’s MPLS allows you to do the following:
•
set the path that traffic will take through a network and set performance characteristics for a
class of traffic
•
add new network routing services without changing the basic forwarding paradigm
•
create virtual private network (VPN) tunnels throughout the network (without the need for
encryption or end-user applications)
Note
The MPLS features described in this chapter are only supported on
MPLS-enabled RS line cards. See your Riverstone representative for specific
part numbers and applicable RS platforms.
This chapter contains the following sections:
•
For an overview of MPLS concepts and terminology, and the MPLS features supported on the
RS, see Section 17.1, "MPLS Architecture Overview."
•
To enable MPLS on the RS switch router, see Section 17.2, "Enabling and Starting MPLS on
the RS."
•
To configure Resource Reservation Protocol (RSVP) signaling for MPLS, see Section 17.3,
"RSVP Configuration."
•
To configure Label Distribution Protocol (LDP) signaling for MPLS, see Section 17.4, "LDP
Configuration."
•
To configure layer 3 label switching, see Section 17.5, "Configuring L3 Label Switched Paths."
This section includes information on configuring static and dynamic L3 paths, as well as
example configurations.
•
To configure layer 2 label switching, see Section 17.6, "Configuring L2 Tunnels." This section
includes information on configuring static and dynamic L2 tunnels, as well as example
configurations.
•
To use MPLS traffic engineering features, see Section 17.7, "Traffic Engineering."
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