Cisco 1548M Anleitung zur Verwendung
1
Cisco Systems, Inc.
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Cisco Systems, Inc.
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Copyright © 1999
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
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.
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
information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387,
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
T
his document is to be used in conjunction with the Cisco 1548M Micro Switch 10/100 Installation and Configuration Guide.
A
ccess Registrar, AccessPath, Any to Any, AtmDirector, CCDA, CCDE, CCDP, CCIE, CCNA, CCNP, CCSI, CD-PAC, the Cisco logo, Cisco Certified Internetwork Expert logo,
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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
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etworking Academy, the Cisco Systems Networking Academy logo, the Cisco Technologies logo, ConnectWay, Fast Step, FireRunner, GigaStack, IGX, Internet Quotient, Kernel Prox
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GX, MultiPath Data, MultiPath Voice, Natural Network Viewer, NetSonar, Network Registrar, Packet, PIX, Point and Click Internetworking, Policy Builder, Precept, Secure Script,
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erviceWay, SlideCast, SMARTnet, TheCell, TrafficDirector, TransPath, ViewRunner, Virtual Service Node, VisionWay, VlanDirector, WebViewer, Workgroup Director, and Workgrou
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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
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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,
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therSwitch, FastHub, FastLink, FastPAD, FastSwitch, GeoTel, IOS, IP/TV, IPX, LightStream, LightSwitch, MICA, NetRanger, Post-Routing, Pre-Routing, Registrar, StrataView Plus
,
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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
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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)
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opyright © 1999, Cisco Systems, Inc.
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ll rights reserved.
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