Summit Systems - Extreme Networks BlackDiamond 6804 Troubleshooting Manual

Summit Systems

Unlike the BlackDiamond and Alpine systems, the Summit "i"-series stackables are not modular
systems: all of the system components are integrated into one unit. (See Figure 7.)
Figure 7: Summit architecture
PHY
PHY
PHY
PHY
PHY
PHY
PHY
PHY
PHY
The Summit CPU subsystem is similar to the CPU subsystem of the BlackDiamond MSM and the
Alpine SMMi in that it is equipped with the same basic hardware components: dual CPUs, memory
(DRAM, NVRAM, and flash memory), console port connectors, management interface, and a PCMCIA
slot.
The Summit switching fabric subsystem uses the same basic set of ASICs (the switch engine ASIC and
the address filtering and queue management ASIC) and memory (packet memory for storing packets;
OTP RAM, PQ RAM, and VPST RAM) that are used on the BlackDiamond and Alpine switches, so it,
too, offers wire-speed switching.
The Summit I/O subsystem provides PHY and MAC functionality in a variety of port configurations
(types of ports and numbers of ports).
Advanced System Diagnostics and Troubleshooting Guide
MAC
SE
ASIC
SE
ASIC
MAC
SE
ASIC
SE
ASIC
MAC
Flash
NVRAM
PBUS
AFQM
ASIC
OTP RAM
PQ RAM
VPST RAM
CPU
256 MB
DRAM
CPU
DN_030A
Summit Systems
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