3com 3CB9LF36RL User Manuals

Table of Contents

• Contents

  3
• Overview

  7
  • Important Notices

    7
  • Supported Modules

    8
  • System Requirements

    9
    • Boot Code and Operational Code

      9
    • Optional Switch Fabric Module Redundancy

      10
    • Optional Management Redundancy

      10
• Release Highlights

  11
  • Web-based Management

    12
  • ISO Date and Time Format

    13
  • New Modules

    13
  • IGMP

    14
  • 10/100 Mbps Ethernet Port Monitoring

    14
  • RMON Monitoring Applications

    15
  • 802.1p CoS

    15
  • Loop Detection

    15
  • Bridge Address Learning Limits

    19
  • Secure Address Learning Mode

    20
  • Configuring One Untagged System VLAN

    22
  • Broadcast, Multicast, and Flood Rate Limiting

    23
    • Module Packet-egress Rate Limiting

      23
    • Port Multicast Packet-ingress Rate Limiting

      25
    • How Port Rate Limits and Thresholds Work

      26
• Release Issues

  27
  • Corrected Problems

    27
    • System

      27
    • Management

      27
    • Ethernet

      27
    • Bridging

      28
    • VLANs

      29
  • System Issues

    29
    • Staging

      29
    • System

      29
    • Management

      30
    • Web-based Management

      30
    • SNMP

      30
    • Ethernet

      30
    • Bridging

      31
    • Resilient Links

      32
    • IGMP

      32
    • Trunking

      32
    • VLANs

      32
  • Known Problems

    34
    • System

      34
    • Management

      34
    • Ethernet

      37
    • Bridging

      38
    • Trunking

      38
  • Documentation Changes

    40
    • Ethernet

      40
    • Web-based Management

      40
• Software Installation

  41
  • How to Obtain Software Image Files

    41
  • Installation and Upgrade Prerequisites

    41
    • Verifying and Updating Modules for an Existing Chassis

      42
    • Verifying and Updating Modules for a NewChassis

      43
  • Downloading Software

    44
    • Downloading Release3.0 Software

      44
    • Update Emergency Download Parameters

      46
  • Downgrading Switching Modules to Software Release2.1.0

    48
• Reference

  49
  • Identifying Modules in the Switch

    49
  • Applicable Documents

    51
  • MIB Files

    51
    • 3Com Enterprise MIBs

      52
  • Entering Commands

    53
  • Understanding Autonegotiation

    53
  • Year 2000 Compliance

    54
• Technical Support

  55
  • Online Technical Services

    55
    • World Wide Web Site

      55
    • 3Com Knowledgebase Web Services

      55
    • 3Com FTP Site

      56
    • 3Com Bulletin Board Service

      56
      • Access by Analog Modem

        56
      • Access by Digital Modem

        57
    • 3Com Facts Automated Fax Service

      57
  • Support from Your Network Supplier

    57
  • Support from 3Com

    57
  • Returning Products forRepair

    59