Enterasys VH-4802 User Manual
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Enterasys VH-4802 User Manual

Enterasys VH-4802 User Manual

Vertical horizon fast ethernet switch
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VERTICAL HORIZON
VH-4802
FAST ETHERNET SWITCH
USER GUIDE
9033630

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Summary of Contents for Enterasys VH-4802

  • Page 1 VERTICAL HORIZON VH-4802 FAST ETHERNET SWITCH USER GUIDE 9033630...
  • Page 3 Only qualified personnel should perform installation procedures. Enterasys Networks 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 Enterasys Networks to determine whether any such changes have been made.

  • Page 4: Fcc Notice

    SAFETY INFORMATION CLASS 1 LASER TRANSCEIVERS The VH-4802 48-port switch uses Class 1 Laser transceivers. Read the following safety information before installing or operating these modules. Class 1 laser transceivers use an optical feedback loop to maintain Class 1 operation limits. This control loop eliminates the need for maintenance checks or adjustments.

  • Page 5: Avertissment: Ports Pour Fibres Optiques - Sécurité Sur Le Plan Optique

    Do not use optical instruments to view the laser output. The use of optical instruments to view laser output increases eye hazard. When viewing the output optical port, power must be removed from the switch. WARNING: FIBER OPTIC PORT SAFETY When using a fiber optic port, never look at the transmit laser while it is powered on.
  • Page 6 Notice WICHTIGE SICHERHEITSHINWEISE (GERMANY) Bitte lesen Sie diese Hinweise sorgfältig durch. Heben Sie diese Anleitung für den späteren Gebrauch auf. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie keine Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur Reinigung. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht zugänglich sein.

  • Page 7: Program License Agreement

    BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT, CAREFULLY READ THIS LICENSE AGREEMENT. This document is an agreement (“Agreement”) between You, the end user, and Enterasys Networks, Inc. (“Enterasys”) that sets forth your rights and obligations with respect to the Enterasys software program (“Program”) in the package.
  • Page 8 Notice UNITED STATES GOVERNMENT RESTRICTED RIGHTS. The enclosed Product (i) was developed solely at private expense; (ii) contains “restricted computer software” submitted with restricted rights in accordance with section 52.227-19 (a) through (d) of the Commercial Computer Software-Restricted Rights Clause and its successors, and (iii) in all respects is proprietary data belonging to Enterasys and/or its suppliers.

  • Page 9: Declaration Of Conformity

    Title Rochester, NH, USA ___________________________________ Location 9033630 89/336/EEC 73/23/EEC Manufacturer’s Name: Enterasys Networks, Inc. 35 Industrial Way PO Box 5005 Rochester, NH 03867 Mr. J. Sims Enterasys Networks Limited Nexus House, Newbury Business Park London Road, Newbury Berkshire RG14 2PZ, England...
  • Page 10 Notice 9033630 viii...

  • Page 11: Table Of Contents

    Mounting the Switch on a Table or Shelf ..... . . 18 Mounting the Switch in a Rack ....... 19 Installing an Optional Module into the Switch .
  • Page 12 Powering the Switch........

  • Page 13: Preface

    PREFACE Purpose This guide provides information about the features and applications of the Enterasys Networks Vertical Horizon VH-4802 switch system. Audience This guide is intended for Ethernet Local Area Network (LAN) administrators and Management Information Systems (MIS) personnel with the following background: •...

  • Page 14: Other Conventions

    Chapter 2. Installation: Describes the content of your switch shipment, lists site requirements, and provides mounting instructions. Instructions for making connections and powering up the switch are provided as well. Appendix A. Technical Specifications: Provides a list of standards compliance and certifications as well as physical and operational specifications.

  • Page 15: Product Overview

    Application Example Description This installation guide describes Enterasys Networks’ Vertical Horizon VH-4802 Fast Ethernet switch. The switch provides 48 10Base-T/100Base-TX ports, plus two slots for optional slide-in 100Base-FX, 1000Base-SX or 1000Base-LX modules. There is also a fixed SNMP-based management card included in the switch. This management card supports both in-band and out-of-band access for managing the switch.

  • Page 16: Features

    The VH-4802 switch is desktop or rack-mountable. LEDs on the front panel provide information about the operating status of the switch. The rear panel contains the power connector, redundant power connector, serial console port, and two slots for the optional modules. The side panel includes two fans that maintain ventilation and cooling for internal switch components.
  • Page 17 • Network Management: - SNMP compliant agent: MIB II (RFC 1213); Bridge MIB (RFC 1493); Ethernet-like MIB (RFC 1643); RMON - Statistics, History, Alarm and Event groups (RFC 1757); Interface Evolution MIB (RFC 1573); Q-MIB (IEEE 802.1Q); private MIB extensions - Access via in-band, Internet browser, or Telnet - Console port (RS-232, male DB-9 connector, null modem) supports access via direct or modem connection...

  • Page 18: Front Panel

    Front Panel Figure 1-1 shows the front panel of the Enterasys Networks Vertical Horizon VH-4802. Table 1-1 defines the VH-4802 front panel components. Figure 1-1. VH-4802 Front Panel Table 1-1. Front Panel Components Name Power LED RDP LED Mgmt LED...

  • Page 19: Optional Modules

    Optional Modules Figure 1-2 shows the optional modules available for the Enterasys Networks Vertical Horizon VH-4802. Table 1-2 defines the optional module components. Table 1-2. Optional Module Components Module 100Base-FX (MMF) 100Base-FX (SMF) 1000Base-SX 1000Base-LX 9033630 Figure 1-2. Optional Modules...

  • Page 20: Rear Panel

    Rear Panel Figure 1-3 shows the VH-4802 rear panel and Table 1-3 defines the rear panel components. Table 1-3. Rear Panel Components Name Power Connector Redundant Power Connector Management Connector Slots for Optional Modules 6 Product Overview Figure 1-3. VH-4802 Rear Panel Function Provides AC power to the switch.

  • Page 21: Feature Summaries

    To minimize the possibility of dropping frames on congested ports, the VH-4802 switch provides 512 KB of frame buffering per port. This buffer space is used to queue packets for transmission on congested networks. This is an additional advantage over cut-through switching technology, which drops packets immediately when experiencing collisions.

  • Page 22: Software Download

    Configuration and Management Interfaces The VH-4802 switch can be managed using any of the following methods: • Serial console, out-of-band An RS-232 connection, using a DB-9 connector, is included on the rear panel for system management.

  • Page 23: Rmon

    SNMP management station. The VH-4802 supports four of the nine groups of RMON defined for Ethernet networks on a per segment basis. Specifically, these are: •...

  • Page 24: Auto-Negotiation

    It is not required that the network device being connected to the switch supports auto- negotiation as the VH-4802 switch automatically adjusts to the network device’s communication settings. Auto-negotiation is configurable using the console interface menus, the on-board Web agent, or via SNMP.

  • Page 25: Flow Control

    The VH-4802 allows up to four ports of the same media type to be joined together as a trunk. RJ-45 ports must...

  • Page 26: Factory Defaults

    Factory Defaults Table 1-4 lists the default settings for switch configuration parameters. Each parameter can be changed via the console menus or Telnet. Table 1-4. Factory Default Settings Parameter Multicast Filtering GMRP IGMP Multicast Filtering Port Configuration Flow Control Speed and Duplex...
  • Page 27 Parameter Virtual LANs Acceptable VLAN Frame Type Configurable PVID Tagging GVRP Untagged VLAN Group Assignment VLAN Ingress Filtering VLAN Learning 9033630 Default Value Disabled False Product Overview 13...

  • Page 28: Application Examples

    The VH-4802 switch is ideal for meeting the needs of today’s high performance networks. The switch’s low cost and high port count makes it attractive and affordable for dedicated 10/100Mbps connections to the desktop.

  • Page 29: Client/Server Network Application

    Client/Server Network Application To improve workstation performance in a client/server environment, the VH-4802 switch can be configured to provide 200 Mbps full duplex Fast Ethernet connections to servers by connecting each to a dedicated switch port (Figure 1-4). Users can be accommodated through connections to hubs, both at 10Mbps and 100Mbps speeds, through 10Mbps switches with 100Mbps uplinks, or through direct connections.

  • Page 30: Local Backbone Application

    Local Backbone Application The VH-4802 switch can be used in a local backbone application, connecting network segments together and providing file-server access (Figure 1-5). Workgroup hubs are provided with a single connection to the switch while servers are put on dedicated 100 Mbps ports. Routers and other networking devices can connect off of the switched backbone as well.

  • Page 31: Installation

    Power cord • RS-232 null-modem cable • Product documentation Site Requirements Before you install the switch, make sure the site meets the following requirements: • Mounting Provide a flat table, shelf surface, or an optional 19 in. (48.3 cm) equipment rack.

  • Page 32: Mounting The Switch On A Table Or Shelf

    • Environmental Install the VH-4802 switch in a dry area, with adequate air circulation. Avoid placing the switch in direct sunlight or near other heat sources, such as hot-air vents. For temperature and humidity specifications, see Appendix A, “Technical Specifications.”...

  • Page 33: Mounting The Switch In A Rack

    Figure 2-1 shows the orientation of the mounting ears for attaching the ears to the switch for a rack mount application. Mount the switch with the front panel facing forward. Do the following: Mount one of the ears to the switch using two (2) of the supplied screws.

  • Page 34: Installing An Optional Module Into The Switch

    Be sure you power off the switch before installing any module. To install an optional module into the switch, do the following: Disconnect power to the switch. Remove the blank metal plate (or a previously installed module) from the appropriate slot by removing the two screws with a flat-head screwdriver.

  • Page 35: Connecting A Terminal To The Console Port

    This cable is shielded to comply with emissions regulations and requirements. Console Port (Out-of-Band) Connections To connect the VH-4802 console port to a terminal, do the following: Connect a VT100 compatible terminal or a PC running a terminal emulation program to the console port (Figure 2-3). Use the null-...

  • Page 36: Remote Management Via The Console Port

    25-pin port, you will have to provide an RS-232 cable with a 9-pin connector on one end and a 25-pin connection on the other end. You do not have to set the modem at the switch’s site, because the switch will automatically configure it to auto-answer mode.

  • Page 37: Powering The Switch

    Powering the Switch To supply power to the switch, connect the power cord to the switch and to a grounded three-prong wall outlet (Figure 2-4). See Appendix A, “Technical Specifications” on page 27 for more information regarding specific international power cord requirements.

  • Page 38: Network Cable Requirements

    Network Cable Requirements Copper Figure 2-1 specifies the cable types and length constraints for the various copper interfaces on the VH-4802. Table 2-1. Copper Cable Specifications Interface Type 10Base-T 100Base-TX Fiber Figure 2-2 specifies the fiber types, bandwidth requirements, and length constraints for the Fast Ethernet fiber interface on the fiber optic media modules.

  • Page 39: 10Base-T/100Base-Tx Ports

    Figure 2-4 specifies the fiber types, bandwidth requirements, and length constraints for the Gigabit Ethernet long-wavelength fiber interface on the fiber optic media module. Table 2-4. 1000Base-LX Fiber Specifications Fiber Diameter (microns) 62.5 µm MMF 50 µm MMF 50 µm MMF 10 µm SMF 10Base-T/100Base-TX Ports The 10Base-T/100Base-TX ports use RJ-45 connectors.

  • Page 40: 100Base-Fx/1000Base-Sx/Lx Fiber Ports

    The 100Base-FX and 1000Base-SX/LX fiber ports use SC connectors. Figure 2-6 shows an SC fiber connector being inserted into a fiber port on the VH-4802. Figure 2-6. Inserting an SC Fiber Connector into a Fiber Port The fiber uplink modules employed (Table 2-5) support multi-mode 62.5/ 125µm fiber and single-mode 10/125µm fiber.

  • Page 41: Appendix A. Technical Specifications

    APPENDIX A. TECHNICAL SPECIFICATIONS General Standards Compliance IEEE 802.1D Transparent Bridging Specifications (ISO/IEC 10038) IEEE 802.1p Traffic Class Expediting and Dynamic Multicast Filtering IEEE 802.1Q Virtual Bridged Local Area Networks IEEE 802.2 Local Area Networks, Logical Link Control (LLC) IEEE 802.3 CSMA/CD 9 (ISO/IEC 8802-3) IEEE 802.3i 10Base-T (ISO/IEC 8802-3, clause 14) IEEE 802.3u 100Base-TX (ISO/IEC 8802-3, clause 25) IEEE 802.3u 100Base-FX...

  • Page 42: Electrical Specifications

    Maximum power consumption: Physical Specifications Height: Length: Width: Weight: 28 Technical Specifications 100-240 VAC 50-60 Hz 90 VA 3.3 in. (8.4 cm) 13.8 in. (35 cm) 17.3 in. (44 cm mountable in a standard 19 in. rack) 10.63 lb. (4.82 kg) VH-4802...

  • Page 43: Port Specifications

    Port Specifications Console Port Table A-1 shows the console port pin assignments. Table A-1. RS-232 Console Port Pin Assignments 10Base-T and 100Base-TX Ports Table A-2 shows the 10Base-T/100Base-TX pinouts. These ports are wired MDI-X. All undefined pins are not used. Table A-2.

  • Page 44: Mdi/Mdi-X Crossover Cable Wiring

    Figure A-1. External Crossover Cable Wiring Power Cord Set Requirements The wide-range input feature of the VH-4802 Ethernet switch permits it to operate from any line voltage between 100 and 240 VAC. The power cord set (appliance coupler, flexible cord, and wall plug) you received with the switch meets the requirements for use in the country where you purchased the switch.

  • Page 45: Country-Specific Requirements

    Country-Specific Requirements Table A-3 lists the power cord set requirements by country and identifies the accredited agency within that country. Table A-3. Power Cord Set Requirements by Country Country Australia Austria Belgium Canada Denmark Finland France Germany Italy Japan Netherlands Norway Sweden Switzerland...
  • Page 46 Japanese Dentori Law. Flexible cord must be Type VCT or VCTF, 3-conductor, 0.75mm conductor size. Wall plug must be a two-pole grounding type with a Japanese Industrial Standard C8303 (15A, 125V) configuration. 32 Technical Specifications VH-4802...

  • Page 47: Appendix B. Flow Control

    Workstation A to stop sending packets by inducing collisions on port X. The pause-frame flow-control mechanism supported by the VH-4802 switch conforms with the IEEE 802.3x specification for full- duplex flow control. For the full-duplex pause-frame mechanism to work, the device connected to the switch port must also support IEEE 802.3x flow control.
  • Page 48 34 Flow Control VH-4802...

  • Page 49: Appendix C. Acronyms & Abbreviations

    APPENDIX C. ACRONYMS & ABBREVIATIONS Term 10Base-T 100Base-TX 100Base-FX 1000Base-SX 1000Base-LX ANSI BootP CAT5 CSMA/CD HTTP ICMP IEEE RMON 9033630 Definition 10 Mbps twisted-pair Ethernet 100 Mbps twisted-pair Fast Ethernet 100 Mbps fiber option Fast Ethernet 1000 Mbps fiber option short-wavelength Gigabit Ethernet 1000 Mbps fiber option long-wavelength Gigabit Ethernet...
  • Page 50 Term SNMP TCP/IP TFTP VLAN 36 Acronyms & Abbreviations Definition Simple Network Management Protocol Transmission Control Protocol/Internet Protocol Trivial File Transfer Protocol Transmit Data Unshielded Twisted Pair Virtual LAN VH-4802...

  • Page 51: Index

    802.1D, 7 802.1p, 11 802.1Q, 3, 11 802.3, 25 802.3x, 11 activity LEDs, 4 application examples, 14 architecture of switch, 2 auto-negotiation, 2, 10 back-pressure flow control, 33 BootP, 10, 22 browsers, Web, 8, 22 buffers, frame, 7 cable requirements, 24...
  • Page 52 27 reliability features, 3 RJ-45 ports connections, 25 defined, 4 pinouts, 29 RMON, 9 RS-232 port cable connection, 21 out-of-band management, 8 pin assignments, 29 rubber foot pads, 18 safety compliance, 27 SC ports, 26 screws, mounting, 19 VH-4802...
  • Page 53 3 software tests, 23 Spanning Tree Protocol, 7 standards compliance, IEEE, 27 Status LEDs, module, 4 store-and-forward switching, 7 switch description, 1 TCP/IP protocol, 8 Telnet, 8, 22 terminal connection, 8, 21 tests, hardware and software, 23 TFTP download, 8...
  • Page 54 4 Index VH-4802...
  • Page 56 150420-102 R01...

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