Cisco 1548M Anleitung zur Verwendung

Cisco Systems, Inc.

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San Jose, CA 95134-1706

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Cisco Systems, Inc.

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Text Part Number:

Release Notes for the Cisco 1548M

Micro Switch 10/100

November 29, 1999

These release notes provide information on the Cisco 1548M Micro Switch 10/100 (hereafter

referred to as the Micro Switch).

Contents •“Firmware Release v1.01.00” section on page 2

•“Limitations” section on page 2

•“Usage Guidelines” section on page 2

•“Related Documentation” section on page 2

•“Cisco Connection Online” section on page 2

•“Documentation CD-ROM” section on page 3

78-5572-02

2Release Notes for the Cisco 1548M Micro Switch 10/100

Firmware Release v1.01.00

•When Spanning Tree Protocol is enabled in some configurations, memory may become

corrupted, causing the switch to hang. Firmware Release v1.01.00 corrects this problem.

Limitations •When monitoring ports on the switch, you will not see port activity for the corresponding port in

vertical alignment with the monitor port. This applies to traffic to or from the affected port, as

well as inputs from other ports that output to the affected port. [CSCdk83884]

For example, if Port 1 is the Monitor port, you will not be able to see traffic going into or out of

port 5, as well as any traffic coming into ports 2, 3, 4, 6, 7, and 8 that go out to port 5.

•By default, Cisco Discovery Protocol (CDP) is disabled. When you enable CDP, the switch sends

and receives CDP packets. However, all CDP packets are forwarded to all ports. This results in

an inaccurate topology display for the device in Cisco network management applications.

[CSCdk59807]

•You can only enable Spanning-Tree Protocol (STP) on VLAN 1. [CSCdk60304]

Usage Guidelines

•The Cisco ConfigMaker CD that shipped with your switch does not support this device. Contact

your Cisco representative or reseller to receive the correct version, or download the latest version

from CCO.

•Before connecting a Micro Switch to a modem, you should configure your modem to ignore

input from the data terminal equipment (DTE) during dial-out or dial-in. Without this precaution,

there is a small chance that the modem could disconnect. Refer to your modem manual for the

correct configuration command syntax.

Related Documentation

Use the following publications with this document:

•Cisco 1548M Micro Switch 10/100 Cabling and Start Up

•Cisco 1548M Micro Switch 10/100 Installation and Configuration Guide

•Cisco 1548M Micro Switch 10/100 Command Reference (online only)

•Cisco 1548M Micro Switch 10/100 Switch Manager online help

Cisco Connection Online

Cisco Connection Online (CCO) is Cisco Systems’ primary, real-time support channel. Maintenance

customers and partners can self-register on CCO to obtain additional information and services.

Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added

services to Cisco’s customers and business partners. CCO services include product information,

product documentation, software updates, release notes, technical tips, the Bug Navigator,

configuration notes, brochures, descriptions of service offerings, and download access to public and

authorized files.

Release Notes for the Cisco 1548M Micro Switch 10/100 3

Documentation CD-ROM

CCO serves a wide variety of users through two interfaces that are updated and enhanced

simultaneously: a character-based version and a multimedia version that resides on the World Wide

Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet

e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version

of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well

as hyperlinks to related information.

You can access CCO in the following ways:

•WWW: http://www.cisco.com

•WWW: http://www-europe.cisco.com

•WWW: http://www-china.cisco.com

•Telnet: cco.cisco.com

•Modem: From North America, 408 526-8070; from Europe, 33 1 64 46 40 82. Use the

following terminal settings: VT100 emulation; databits: 8; parity: none; stop bits: 1; and

connection rates up to 28.8 kbps.

For a copy of CCO’s Frequently Asked Questions (FAQ), contact [email protected]. For

additional information, contact [email protected].

Note If you are a network administrator and need personal technical assistance with a Cisco

product that is under warranty or covered by a maintenance contract, contact Cisco’s Technical

Assistance Center (TAC) at 800 553-2447, 408 526-7209, or [email protected]. To obtain general

information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387,

408 526-7208, or [email protected].

Documentation CD-ROM

Cisco documentation and additional literature are available in aCD-ROM package, which ships with

your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated

monthly. Therefore, it might be more current than printed documentation. To order additional copies

of the Documentation CD-ROM, contact your local sales representative or call customer service.

The CD-ROM package is available as a single package or as an annual subscription. You can also

access Cisco documentation on the World Wide Web at http://www.cisco.com,

http://www-china.cisco.com, or http://www-europe.cisco.com.

If you are reading Cisco product documentation on the World Wide Web, you can submit comments

electronically. Click Feedback in the toolbar and select Documentation. After you complete the

form, click Submit to send it to Cisco. We appreciate your comments.

4Release Notes for the Cisco 1548M Micro Switch 10/100

Documentation CD-ROM

his document is to be used in conjunction with the Cisco 1548M Micro Switch 10/100 Installation and Configuration Guide.

ccess Registrar, AccessPath, Any to Any, AtmDirector, CCDA, CCDE, CCDP, CCIE, CCNA, CCNP, CCSI, CD-PAC, the Cisco logo, Cisco Certified Internetwork Expert logo,

iscoLink, the Cisco Management Connection logo, the Cisco NetWorks logo, the Cisco Powered Network logo, Cisco Systems Capital, the Cisco Systems Capital logo, Cisco Systems

etworking Academy, the Cisco Systems Networking Academy logo, the Cisco Technologies logo, ConnectWay, Fast Step, FireRunner, GigaStack, IGX, Internet Quotient, Kernel Prox

GX, MultiPath Data, MultiPath Voice, Natural Network Viewer, NetSonar, Network Registrar, Packet, PIX, Point and Click Internetworking, Policy Builder, Precept, Secure Script,

erviceWay, SlideCast, SMARTnet, TheCell, TrafficDirector, TransPath, ViewRunner, Virtual Service Node, VisionWay, VlanDirector, WebViewer, Workgroup Director, and Workgrou

tack are trademarks; Changing the Way We Work, Live, Play, and Learn, Empowering the Internet Generation, The Internet Economy, and The New Internet Economy are service mark

nd ASIST, BPX, Catalyst, Cisco, Cisco IOS, the Cisco IOS logo, Cisco Systems, the Cisco Systems logo, the Cisco Systems Cisco Press logo, Enterprise/Solver, EtherChannel,

therSwitch, FastHub, FastLink, FastPAD, FastSwitch, GeoTel, IOS, IP/TV, IPX, LightStream, LightSwitch, MICA, NetRanger, Post-Routing, Pre-Routing, Registrar, StrataView Plus

tratm, TeleRouter, and VCO are registered trademarks of Cisco Systems, Inc. or its affiliates in the U.S. and certain other countries. All other trademarks mentioned in this document a

he property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any of its resellers. (9910R)

ll rights reserved.

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