Installation guide

BlackDiamond 20808 Switch Hardware Installation Guide
17
2 BlackDiamond 20808 Switch Modules
This chapter includes the following sections:
● Overview of the BlackDiamond 20808 Modules on page 17
● Management Modules on page 17
● Switch Fabric Module on page 21
● I/O Modules on page 21
Overview of the BlackDiamond 20808 Modules
Modules for the BlackDiamond 20808 switch include management modules, I/O modules, and switch
fabric modules.
Each module for the BlackDiamond 20808 switch consists of a printed circuit board mounted on a metal
panel that acts as the insertion vehicle in the switch. The module carrier also includes ejector/injector
levers and captive retaining screws at each end of the module front panel.
Table 3 lists the module types and models available for the BlackDiamond 20808 switch.
Management Modules
Two BlackDiamond 20808 management modules are available, the MM-Base and the MM-Adv. The
MM-Adv management modules support larger MAC address, IP route, and ACL capacity than the
MM-Base. Management modules provide the CPU control subsystem for the switch.
The BlackDiamond 20808 switch has two dedicated management module slots, labeled A and B. One
management module is required for switch operation; however, adding a second management module
increases system availability through redundancy. Each management module contains a temperature
sensor, nonvolatile random-access memory (NVRAM), and a real-time clock.
Table 3: Modules for the BlackDiamond 20808 Switch
Type Model
Management module MM-Base
MM-Adv
Switch fabric module XFM-1
I/O module XM-8XB
GM-40XB
GM-40XA