Cisco LAN2LAN Software

Document ID: 14991

Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Problem
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Related Information

Introduction

This document provides information about a PC/AT Motherboard bus incompatibility issue.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

This document is not restricted to specific software and hardware versions.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Problem

Due to an inconsistency in PC 386 Motherboards that use the OPTI 82C381 and 82C382 chip set with a revision level of B or earlier, LAN²LAN does not operate properly when performing 16-bit transfers on odd byte boundaries, and the WD diagnostic fails during the High Speed Ports test.

The problem was first experienced in a Silicon Valley Computer SVC386DX, but other computers might use the same chip set.

If you experience a problem when you run LAN²LAN in a 386 clone, run WD. If you receive an error code in the 4141-4147 range, check to see if your PC contains the chip set in question.

Note: This problem has been fixed beginning with Revision C OPTI chip sets, but models with Revision A or B sets might still exist.

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Related Information

• LAN Product Support Pages
• LAN Switching Support Page
• Technical Support & Documentation - Cisco Systems