Cajun P550 Switch Overview

Layer 3 Supervisor Module

The Layer 3 supervisor module features include:

❒PowerPC 750 (RISC) processor

❒Memory: 4 MB Flash, 64 MB DRAM, 128 KB NVRAM, 512 KB cache, with multiple memory configurations:

Table 1-1.Multiple Memory Configuration

DIMM/SIMM

Number of

Total Memory

Modules

 

 

 

32 MB

1

32 MB

 

 

 

32 MB

2

64 MB

 

 

 

64 MB

1

64 MB (V3.0 or higher)

 

 

 

64 MB

2

128 MB (V3.0 or higher)

 

 

 

❒Real-time clock

❒Out-of-band console: 10/100Base-T & RS-232

❒RMON support

❒Simple Network Management Protocol (SNMP) management agent

❒Dot matrix display

The supervisor module is responsible for address learning, address cache management, and spanning tree management.

In addition, the Layer 3 supervisor module:

❒Implements system management functions and management interfaces.

❒Uses standard routing protocols and maintains routing table and caches.

❒Provides 1.5 million packets per second of hardware-based routing for packets that arrive on Layer 2-only media modules.

❒Supplies software-based routing for packets that are not routed in hardware.

❒Supports implementation of AppleTalk, and DECnet, that are not implemented in hardware.

The Layer 3 supervisor module requires a faster CPU and more memory. Also unlike the Layer 2 supervisor, the Layer 3 supervisor is part of the path that some packets take through the system. To accomplish this, the Layer 3 supervisor requires faster data transfer to and from the switching fabric.

Cajun P550/P220 Switch Operation Guide

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