User guide

MPLS Module Installation and User Guide 1-1

Overview

The MPLS module is a self-contained module for the BlackDiamond 6800 series

chassis-based system. Unlike other BlackDiamond modules, there are no external

network interfaces on the MPLS module. Instead, the MPLS module provides advanced

IP services for the other input/output (I/O) modules installed in the chassis. The MPLS

module contains a powerful set of packet processing resources that operate in a

one-armed fashion: receiving frames from the switch fabric, processing the frames, and

transmitting the frames back into the switch fabric.

This chapter covers the following topics:

• Summary of Features on page 1-2

• MPLS Module Physical Description on page 1-2

• BlackDiamond 6800 Series Switch Overview on page 1-5

• About the MPLS Module on page 1-6

• About MPLS on page 1-6

• About IP Unicast Forwarding on page 1-8

• About Destination-Sensitive Accounting on page 1-8