Extreme Networks BlackDiamond 6804 Troubleshooting Manual page 50

Diagnostics
Figure 10: Backplane health check paths (BlackDiamond architecture)
I/O Module
PHY
AFQM
MAC
ASIC
(Quake)
PHY
PHY
PM
MAC
SE
ASIC
PHY
(Twister)
CPU loads test packet
to MSM fabric
Test packet transferred
on data bus (fast path)
Test packet returned to
CPU
50
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