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3Com MSR 20-20 User Manual

3Com MSR 20-20
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3Com MSR Family Release Notes
Software Version 5.20
3Com MSR Models 20-20, 20-21, 20-40, 30-16, 30-20, 30-40,
30-60, 50-40, 50-60
Software Version 5.20 Release 1508
Part Number: 10016435 rev. AA
Published Date: October 2007
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3Com MSR 20-20 Specifications

General IconGeneral
Form FactorDesktop
Connectivity TechnologyWired
Flash Memory32 MB
RAM128 MB
VPN SupportYes
FirewallYes
WirelessNo
Product TypeRouter
Product SeriesMSR
Data Link ProtocolEthernet, Fast Ethernet
Network / Transport ProtocolTCP/IP
Remote Management ProtocolSNMP, Telnet
FeaturesFirewall protection, VLAN support, Quality of Service (QoS), DHCP server, VPN support
Encryption AlgorithmDES, AES
Authentication MethodRADIUS
Interfaces1 x console - RJ-45
WAN Ports2
LAN Ports2
Operating System3Com Router OS

Summary

Introduction

Scope

Release notes summarize operational requirements and known issues for new 3Com MSR software releases.

Online Resources

Provides website for latest documentation and software updates, and how to obtain guides.

System Requirements

Lists minimum requirements for successful 3Com MSR operation, including chassis, power supply, and modules.

Known Issues for 3Com MSR

System Management

Lists known issues related to system management commands and FTP client behavior.

Interface Management

Details issues with packet dropping, load-sharing counts, CLI command availability, and port mirroring on specific modules.

Link Layer Protocol

Describes issues with link auto-negotiation on specific SICs and port mirroring direction.

Network Protocol

Covers RIP timer options, packet fragmentation, unsupported NAT ALGs, and DHCP behavior in bridge sets.

Routing Protocol

Notes missing commands for IPv6 processes and issues with non-existing OSPFv3 IDs and static routes.

Multicast Protocol

States that multicast is not supported with VLAN interfaces and IGMP is not supported in a bridge template.

Quality of Service (QoS)

Indicates that NQA does not support hostnames and requires IP addresses instead.

MPLS

Details limitations in the `debug mpls` command regarding the display of received hello messages.

Voice and Router Inter-Operability - VCX and NBX issues

Reports that SIP Statistics do not show error events and Attendant Call Transfer fails under busy conditions.

Documentation Errors

Notes that port-id is not required for configuring a monitor port in a mirror group.

Hardware

Mentions a specific power cord strain relief clip is designed only for China.

Upgrading Software

Upgrading with FTP

Provides step-by-step instructions for upgrading software using the FTP protocol, requiring level 3 privileges.

BOOT Menu

Explains how to enter the Boot Menu by pressing Ctrl+B and lists various boot options.

Boot Menu 4: File Control

Details managing application files (main, backup, secure) in Flash memory via the Boot ROM menu.

Boot Menu 5. Modify Bootrom Password

Describes how to change the Boot ROM password.

Boot Menu 6: Ignore System Configuration

Explains how to set an ignore flag to use default factory configuration for booting.

Boot Menu 7: Boot Rom Operation Menu

Outlines options for upgrading, backing up, or restoring the Boot ROM program.

Boot Menu 8: Clear Super Password

Explains how to temporarily clear the Super Password.

Boot Menu 9: Device Operation

Briefly mentions device operation, noting it's not typically used with single storage devices.

Upgrading Software Using Xmodem

Details upgrading software via the console port using the Xmodem protocol.

Upgrading the application image

Provides steps for upgrading an application image using Xmodem, including baud rate settings.

Upgrading Software Using TFTP (option 1)

Outlines the procedure for upgrading software using TFTP client-server model.

Upgrading Software Using TFTP (option 2)

Describes upgrading via an Ethernet interface using TFTP, requiring a TFTP server.

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