Arm - Extreme Networks Summit Summit1i Hardware Installation Manual

ARM

Figure 130 shows the Accounting and Routing Module (ARM).
Figure 130: Accounting and Routing Module (ARM)
Module status LEDs
Service port
Reset
Service port
The ARM is a self-contained module for the BlackDiamond 6800 series chassis-based system. Unlike
most other BlackDiamond modules, there are no external interfaces on the ARM. Instead, the ARM
provides advanced IP services for the other I/O modules installed in the chassis. The ARM contains a
powerful set of packet processing resources and four full-duplex Gigabit Ethernet internal ports that
connect to the BlackDiamond backplane switch fabric. The ARM 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 ARM modules can be placed in a BlackDiamond 6800 series switch at any one
time.
Physical Description
This section describes the components and the LEDs of the ARM module, as shown in Figure 131.
The ARM module 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 ARM management functions. The GPP subsystem
resides outside the packet forwarding data path to optimize routing and billing performance.
Extreme Networks Consolidated "i" Series Hardware Installation Guide
ARM_001
Configuring I/O Modules
257