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Fabric Modules 17
Fabric Modules The Switch Fabric serves as the core of the Switch 8800 Family.The following fabric
models are available to the Switch 8800 Family:
■ 3C17508 - 3Com Switch 8800 360 Gbps Fabric
■ 3C17539 - 3Com Switch 8800 720 Gbps Fabric
These fabric modules provide:
■ Route calculating and forwarding table maintenance.
■ Integrating Crossbar switching fabric to accomplish service exchange between
different boards.
■ System configuration and monitoring functions, which allows the system to
monitor other boards and upgrade/reset service board software.
360 Gbps Switch Fabric Technical specifications
This model applies to the 3C17508. See Table 5 for its specifications.
Panel
On its panel, the 360 Gbps Switch Fabric provides a CF port, CF LED (CFS),
10Base-T/100Base-TX port, RS232/485 port, Console port, AUX port, RESET
button, I/O module status LEDs, and 360 Gbps Switch Fabric status LEDs (SFS,
ACT, ALM, RUN) in turn, as shown in
Figure 10.
Table 4 LEDs on fan tray panel
LED Color Status Status
RUN Green OFF The fan tray is faulty.
ON The fan tray is operating normally.
ALM Red OFF The fan tray is operating normally.
ON The fan tray is faulty.
Table 5 360 Gbps Switch Fabric specifications
Item Specifications
CPU MPC755
Boot ROM 512 KB
SDRAM 512 MB (expandable to 1 GB)
Physical dimensions (W x D) 366.7 x 340 mm (14.4 x 13.4 in.)
Port One Console port, for local configuration management
One AUX port, for remote dialup configuration management
One 10Base-T/100Base-TX port, for software upgrade and
network management
One RS232/485 port, for connecting external PoE power frame
to provide the PoE function
One hot-swap-supported CF port
Max power consumption 60 W