Extreme Networks e" series, Hardware Installation Manual

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Configuring I/O Modules
Extreme Networks Consolidated "e" and "i" Series Hardware Installation Guide 287
MPLS Module
Figure 168 shows the MultiProtocol Label Switching (MPLS) module.
Figure 168: MultiProtocol Label Switching (MPLS) module
The MultiProtocol Label Switching (MPLS) module contains a powerful set of network processors that
are specifically programmed to implement the MPLS function. The module has no external ports, but it
contains four full-duplex Gigabit Ethernet internal ports that connect to the BlackDiamond backplane
switch fabric. Each internal processor provides media-speed packet processing for two internal
full-duplex Gigabit Ethernet ports. The MPLS module operates in a one-armed fashion:
• Receiving frames from the switch fabric.
• Processing the frames.
• Transmitting the frames back into the switch fabric which then sends them to the appropriate I/O
module.
A maximum of four MPLS modules can be installed in a BlackDiamond 6800 series switch at any one
time.
Physical Description
The MPLS module (see Figure 169) has the following key components:
• Two high-performance network processors
• A GPP subsystem
The network processors are high-performance, programmable devices that enhance the Extreme “ i ”
chipset to support expanded functionality, features, and flexibility.
The GPP subsystem handles system control and MPLS management functions. The GPP subsystem
resides outside the packet forwarding data path to optimize routing and billing performance.
Module status LEDs
Service port
Reset
Service port
MPLS_13