Text Part Number:
Contents
78-5572-02
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).
• “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
Corporate Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
Copyright © 1999
Cisco Systems, Inc.
All rights reserved.
1
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 receiv e the correct version, or download the lates t 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.
2 Release Notes for the Cisco 1548M Micro Switch 10/100
Loading...