The Blackdiamond Systems; Blackdiamond 6800 Series Hardware Architecture Differences - Extreme Networks BlackDiamond 6804 Troubleshooting Manual

Hardware Architecture

The BlackDiamond Systems

In the context of the system diagnostics, the BlackDiamond family of core chassis switches share the
same fundamental hardware architecture: a multislot modular chassis containing a passive backplane
that supports redundant load-sharing, hot-swappable switch fabric modules. On BlackDiamond
systems, each I/O module and MSM represents an individual switch containing its own switching
fabric and packet memory.
Figure 1: BlackDiamond 6800 Series architecture, general block diagram
I/O Module
PHY
AFQM
MAC
ASIC
(Quake)
PHY
PHY
PM
MAC
SE
ASIC
PHY
(Twister)

BlackDiamond 6800 Series Hardware Architecture Differences

In the context of understanding the ExtremeWare diagnostics and their use in troubleshooting system
problems, these are the key hardware distinctions between the BlackDiamond 6816, 6808, and 6804.
• BlackDiamond 6816—Modular chassis with passive backplane; sixteen chassis slots for I/O modules;
four chassis slots for MSMs.
• BlackDiamond 6808—Modular chassis with passive backplane; eight chassis slots for I/O modules;
two chassis slots for MSMs.
• BlackDiamond 6804—Modular chassis with passive backplane; four chassis slots for I/O modules;
two chassis slots for MSMs.
16
PHY
PHY
MAC MAC
PHY PHY
PHY PHY
MAC MAC
PHY PHY
Management Bus
NVRAM
E-NET
Console
PCMCIA
MSM
AFQM
ASIC
(Quake)
PM
SE
ASIC
(Twister)
CPU
Subassembly
DN_024B
Advanced System Diagnostics and Troubleshooting Guide