Chapter 1 Introduction; Features - Cabletron Systems 9F122-12 User Manual

Enterasys mmac-plus 9f122-12 microlan module: user guide

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Introduction

The 9F120-08, 9F122-12 and 9F125-08 MicroLAN™ Modules are Dual Attached

Concentrator modules for the SmartSwitch 9000 (see Figure 1-1). The 9F120-08

provides eight multi-mode ﬁber Master ports, the 9F122-12 provides twelve

unshielded twisted pair Master ports, and the 9F125-08 provides eight single

mode ﬁber Master ports. All allow connections of Single or Dual Attached

Stations. The 9F120-08, 9F122-12 and 9F125-08 are ANSI FDDI-compliant with

SMT (version 7.3), MAC, PHY, and PMD. These modules attach directly to the

SmartSwitch 9000 FNB backplane, delivering up to 400 Mbps of bandwidth. The

modules use the Intel i960 microprocessor for all SMT and local/remote SNMP

management functions.

Processor

The concentrator modules are equipped with an advanced Intel i960

microprocessor. This microprocessor provides a platform for all management

functions within a scalable RISC-based architecture.

Management

Management features include the following:

• Module insert/bypass control

• MAC placement

• MAC level and network level statistics

• An FDDI station list

• Individual Master port assignments

Chapter 1

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