cc/td/doc/product/l3sw/8510/rel_12_0/wx5_11a
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Table of Contents

Overview of the
Five-Slot Chassis

Overview of the
Five-Slot Chassis

Your system uses a five-slot, modular chassis with dual, fault-tolerant, load-sharing AC or DC power supplies. (See Figure 1-1.) The five-slot chassis contains up to four line modules and a switch fabric card. The system allows for redundant power supplies and supports wirespeed Layer 2/Layer 3 operation.


Figure 1-1: Five-Slot Chassis

The center slot in the chassis is dedicated to a switch processor that provides a 10-Gbps shared memory-based, nonblocking switch router fabric. The remaining slots support up to four hot-swappable line modules.

The chassis should be installed in a standard 19-inch (48-centimeter) rack.

See the software products provided on your CD-ROM or the Catalyst 8510 Campus Switch Router Software Feature and Configuration Guide for detailed configuration information.

Support Functions

This section describes functions that support and maintain the chassis.

The hot-swapping feature for line modules and the redundant for power supplies allow you to install new equipment without interrupting system power or shutting down interfaces.

The environmental monitoring and reporting functions continuously monitor temperature and voltage points in the system and provide reports and warning messages that allow you to locate and resolve problems and maintain uninterrupted operation.

The redundant power option provides dual load-sharing power supplies. In the event of a power supply failure, or a failure of one of two separate AC power sources, the redundant power option assures uninterrupted operation.

Hot-Swapping Feature

The hot-swapping feature lets you install and replace line modules while the system is operating; you do not need to disable the software or shut down the system power. All line modules support hot swapping.

Caution The switch processor is a required system component. Removing a switch processor while the system is operating causes the system to shut down and can damage
the processor.

Port Densities

You can install any combination of modules in any of the four available module slots. There are no restrictions on either the number of modules that can be installed or their proximity to the processor. See the Catalyst 8510 Campus Switch Router Processor and Line Module Installation Guide for detailed port density information.

Environmental Monitoring Functions

You can maintain normal system operation by identifying and resolving adverse conditions before the system fails by using environmental monitoring and reporting functions. Environmental monitoring functions constantly monitor the internal chassis air temperature. Each power supply monitors its own voltage and shuts down if it detects a critical condition within the power supply. The reporting functions let you retrieve and display the present values of measured parameters, and they display alarms on the console if any of the monitored parameters exceed defined thresholds.

The environmental monitoring functions use three levels of status conditions to monitor the system: normal, alarm, and critical. The processor monitors the temperature inside the module compartment, and the power supplies use the normal and critical levels to monitor DC voltages.

Table 1-1 lists temperature thresholds for the processor-monitored levels.


Table 1-1: Processor-Monitored Temperature Thresholds
Parameter Normal Alarm

Airflow

10-55ºC

> 55ºC

Table 1-2 lists the DC power thresholds for the normal and critical power
supply-monitored levels.


Table 1-2: Power Supply-Monitored Voltage Thresholds
Parameter Critical Normal Critical

+5V

< 4.74V

4.74-5.26V

> 5.26V

The levels of status condition include:

The power supply monitors its own internal temperature and voltages. The power supply is either within tolerance (normal) or out of tolerance (alarm level). (See Table 1-1.) If an internal power supply temperature or voltage reaches a critical level, the power supply shuts down without any interaction with the switch processor.


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Posted: Wed Oct 27 11:57:23 PDT 1999
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