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SmartStack
STS16-20D/STS16-20R
Token Ring Switches
Installation
and
User Guide
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i Notice Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software described in this manual is subject to change without notice. IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT
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ii FCC Notice This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection again
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iii Declaration of Conformity Addendum Application of Council Directive(s): 89/336/EEC 73/23/EEC Manufacturer’s Name: Cabletron Systems, Inc. Manufacturer’s Address: 35 Industrial Way PO Box 5005 Rochester, NH 03867 European Representative Name: Mr. J. Solari European Representative Address: Cabletron Systems Limited Nexus House, Newbury Business Park London Road, Newbury Berkshire RG13 2PZ, England Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC EC Directive 73/23/EEC EN
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iv Table of Contents 1. Introduction 1 Switching Technology . . . . . . . . . . . . . . . . . . . . . . . 2 Switch of Switches . . . . . . . . . . . . . . . . . . . . . . 2 Switch of Servers . . . . . . . . . . . . . . . . . . . . . . . 3 Switch of Hubs . . . . . . . . . . . . . . . . . . . . . . . . 3 Switch of Desktops . . . . . . . . . . . . . . . . . . . . . . 3 Switch of Floors and
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v Spanning Tree Protocol Support . . . . . . . . . . . . . . . . 30 VLAN Support . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Dynamic Source Route Recovery . . . . . . . . . . . . . . . . 32 Management . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 SmartStack Manager for Windows . . . . . . . . .
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vi Using Building Wiring . . . . . . . . . . . . . . . . . . . . 61 Checking the Installation . . . . . . . . . . . . . . . . . . . . 62 Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . 63 Stacker Link Module . . . . . . . . . . . . . . . . . . . . . . 65 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 65 SmartStack STS-LM Connectors and LEDs . .
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vii CrossLink Menu . . . . . . . . . . . . . . . . . . . . . . 112 CrossLink Configuration Screen . . . . . . . . . . . . . . 113 Setting up a CrossLink . . . . . . . . . . . . . . . . . . . 114 Current CrossLink Information Screen . . . . . . . . . . 115 Address Filtering . . . . . . . . . . . . . . . . . . . . . . . . 116 Filters and Port Security Menu . . . . . . . . . . . . . . 117 Config
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viii Port Statistics Menu . . . . . . . . . . . . . . . . . . . . . . . 162 General Statistics Screen . . . . . . . . . . . . . . . . . . 163 802.5 Statistics Screen . . . . . . . . . . . . . . . . . . . 167 802.5 State Information Screen . . . . . . . . . . . . . . . 170 802.5 DTR MAC Information Menu . . . . . . . . . . . . . 172 TXI Information Screen . . . . . . . . . . . . . . . . . . . 173
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ix 11. Getting in Touch with Technical Support 221 Problem Report Form . . . . . . . . . . . . . . . . . . . . . 222 Appendix A. Abbreviations 225 Appendix B. Cable and Pin Information 229 Connecting to the Out-of-Band Management Port . . . . 229 Out-of-Band Management Port and Cable Pin-Outs . . . 229 Twisted-Pair Cable Pin Outs . . . . . . . . . . . . . . . . 232 Cabling Recommendations . . . . . . . . . . . . . . . . 233 Cable Len
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x List of Figures Figure 1. SmartStack STS16-20D Token Ring Switch . . . . . . . . . 1 Figure 2. Location of LEDs, Switches and Connectors . . . . . . . . . 5 Figure 3. The back panel of the SmartStack STS16-20D . . . . . . . 9 Figure 4. The back panel of the SmartStack STS16-20R . . . . . . . 9 Figure 5. Multiple Conversations Through a SmartStack STS16-20RM Switch . . . . . . . . . . . . . . . . . . . . 18 Figure 6. Typical Configuration with S
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xi List of Tables Table 1. Status LEDs and their Meanings . . . . . . . . . . . . . . . 7 Table 2. Stack-link LEDs and Their Meanings . . . . . . . . . . . . . 8 Table 3. Port LEDs and Their Meanings . . . . . . . . . . . . . . . . 8 Table 4. Back Panel Connectors . . . . . . . . . . . . . . . . . . . . 9 Table 5. Capacity Specifications . . . . . . . . . . . . . . . . . . . 13 Table 6. Performance Specifications . .
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xii Notice
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1 1. Introduction This chapter discusses switching technology and how the SmartStack STS16-20D and/or SmartStack STS16-20R Token Ring Switch can be used to improve network performance. This chapter also includes a list of features and specifications for the SmartStack STS16-20D/STS16-20R. The topics of this chapter are presented under the following titles: “Switching Technology”, starting on page 2. “Front Panel Details”, starting on page 5 and “Back Panel Details” starting on page 9.
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2 Switching Technology Demand for network bandwidth continues to grow, driven by the increasing number of systems used in network-intensive applications. LAN segmentation has been the prevalent method for addressing these demands and has been further popularized by trends toward server centralization. However, the implementation costs of LAN segmentation, as well as the real performance characteristics of conventional network components, have served to limit growth of some Token Ring netwo
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3 STS16-20D/STS16-20R to be used as a switch of switches which provides media flexibility in an Token Ring configuration. The SmartStack STS16-20D/STS16-20R can easily connect with other SmartStack products to deliver a broad range of network carrying capacity. Bandwidth is easily scaled to meet all performance requirements. Switch of Servers With client/server applications, many client workstations may attempt to access a single server at the same time. This traffic pattern may create bott
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4 network management statistics. Total network capacity and throughput increase dramatically for attached desktop workstations. Switch of Floors and Buildings For network managers, multistorey buildings and campuses can represent a unique networking challenge. How can a network manager provide an efficient LAN interconnect for users that are located on several floors of a building or in different buildings? Token Ring switching and the SmartStack product family can provide the best solution
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5 Front Panel Details The front panel details of the switches are illustrated in Figure 2. This section lists all the connectors, controls, and LEDs of the front panel. Figure 2. Location of LEDs, Switches and Connectors The MANAGEMENT Port The 9-pin, male, Out-of-Band Management (OBM) port labeled MANAGEMENT functions as a DTE port. This port enables attachment of a terminal, either local or remote, through a modem connection. The terminal can be used to configure and monitor the switch. Th
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6 — a connection to a shared-media segment via a Token Ring concentrator, Station mode (on SmartStack STS16-20D only via the network ports 17– 20) — a connection to another Token Ring switch (on SmartStack STS16-20D only via network ports 17–20) — operating at 4 Mbps or at 16 Mbps — a connection to a dedicated-media segment, directly to a Token Ring LAN station operating in half-duplex or full-duplex mode (Port mode). — Ports 19 and 20 on SmartStack STS16-20R can attach to a MAU/CAU RI/ RO p
