Layer 3 Supervisor Module - Lucent Technologies Cajun P220 Operation Manual

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:
DIMM/SIMM
32 MB
32 MB
64 MB
64 MB
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
Table 1-1. Multiple Memory Configuration
Number of
Total Memory
Modules
1 32 MB
2 64 MB
1 64 MB (V3.0 or higher)
2 128 MB (V3.0 or higher)
Cajun P550 Switch Overview
1-3