Extreme Networks BlackDiamond 6800 MPLS Installation And User Manual page 15

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
MPLS Module Installation and User Guide 1-1