Extreme 3804 Supplementary Manual
16
Advanced System Diagnostics and Troubleshooting Guide
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.
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
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.
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.
four chassis slots for MSMs.
•
BlackDiamond 6808—Modular chassis with passive backplane; eight chassis slots for I/O modules;
two chassis slots for MSMs.
two chassis slots for MSMs.
•
BlackDiamond 6804—Modular chassis with passive backplane; four chassis slots for I/O modules;
two chassis slots for MSMs.
two chassis slots for MSMs.
Management Bus
PQM
OTP
VPST
FDB
AFQM
ASIC
(Quake)
PM
CPU
Subassembly
MAC
PHY
PHY
MAC
MAC
MAC
PHY
PHY
MAC
I/O Module
MSM
PHY
PHY
MAC
PHY
PHY
PHY
PHY
PHY
PHY
NVRAM
E-NET
Console
PCMCIA
SE
ASIC
(Twister)
Data Bus
Data Bus
PCI Bus
PQM
OTP
VPST
FDB
AFQM
ASIC
(Quake)
PM
SE
ASIC
(Twister)
Data Bus
Data Bus
Backplane
DN_024B