Vertical Horizon VH-2402S FAST ETHERNET SWITCH USER GUIDE 9033644
Notice Only qualified personnel should perform installation procedures. NOTICE 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. The hardware, firmware, or software described in this manual is subject to change without notice.
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Notice viii 9033644
TABLE OF CONTENTS PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XI Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi Message Formats . . . . . . . . . . . . . . . . . .
Connecting a Terminal to the Console Port . . . . . . . . . . . . . . . . . . . . . Console Port (Out-of-Band) Connections . . . . . . . . . . . . . . . . . . . Remote Management via the Console Port . . . . . . . . . . . . . . . . . In-Band Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Management Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Powering the Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PREFACE Purpose This guide provides information about the features and applications of the Enterasys Networks Vertical Horizon VH-2402S stackable switch system.
Other Conventions This guide uses the following typographical conventions: • Initial Caps Menu titles and console menu selections. • [Enter] Used to designate the Enter or Return key. • courier font Screen messages and user prompts. • Selection Describes a user-configurable user interface item. • Field Describes a read-only information item. Organization Chapter 1. Product Overview: Describes the features of the switch, front and rear panel components and application examples. Chapter 2.
1. PRODUCT OVERVIEW This chapter provides the following information: • Product Description • Features • Front and Rear Panel Component Descriptions • Feature Summaries • Application Example Description This installation guide describes Enterasys Networks’ Vertical Horizon VH-2402S Fast Ethernet switch. The switch provides 24 10Base-T/100Base-TX ports, plus two slots for optional slide-in 100Base-FX, 1000Base-SX or 1000Base-LX modules.
to configure and control functions in the stack. The module also supports Remote Monitoring (RMON) for Statistics, History, Alarm and Event groups (Groups 1-3, 9). Network management can be performed in-band using TCP/IP or Telnet connection to the serial console port on the Management Module. This module also includes a built-in Web agent that provides management access via common http browsers such as Netscape Navigator and Microsoft’s Internet Explorer.
9033644 • Switch Architecture: - 3 controllers with 8 10/100 ports - IEEE 802.
Front Panel Figure 1-1 shows the front panel of the Enterasys Networks Vertical Horizon VH-2402S. Table 1-1 defines the VH-2402S front panel components. Figure 1-1. VH-2402S Front Panel Table 1-1. Front Panel Components Name Function Power LED Lights steady green to indicate power is supplied to the switch. Off indicates no power is supplied to the switch. RDP LED Lights steady to indicate that a redundant power unit is attached and is in backup or active mode.
Optional Modules Figure 1-2 shows the optional modules available for the Enterasys Networks Vertical Horizon VH-2402S. Table 1-2 defines the optional module components. Figure 1-2. Optional Modules Table 1-2. Optional Module Components Module Components 100Base-FX (MMF) Ports: Two multi-mode fiber ports using SC connectors for uplink. (See 100Base-FX/1000Base-SX/LX Fiber Ports on page 28 for a detailed description.) 100Base-FX (SMF) Ports: One single-mode fiber port using SC connectors for uplink.
Module Components 1000Base-LX Ports: One fiber port using SC connectors for uplink. (See 100Base-FX/1000Base-SX/LX Fiber Ports on page 28 for a detailed description of these ports.) Stacking Ports: Two SCSI II ports for stack uplink and downlink connections. One 32 cm cable included with the stacking module and both the 32 cm cable (9380142) and the 1 m cable (9380143) can be ordered separately, if required.
Feature Summaries The following summaries describe VH-2402S features in areas such as standards compliance, functionality, performance, and options. IEEE 802.1D Bridge The VH-2402S switch is fully compliant with IEEE 802.1D transparent bridging specifications. An address table is provided for learning, filtering, and forwarding. The switch can support up to a maximum of 8K addresses.
Software Download The VH-2402S switch supports the industry-standard Trivial File Transfer Protocol (TFTP) for downloading software to the switch. All switch software is stored in a 2 MB sectored flash ROM. The download feature allows you to easily install software upgrades to the unit. Software can alternatively be downloaded via the serial console port using the XMODEM protocol. A TFTP software download is invoked via the Management Setup Menu using the console menus.
• SNMP-based network manager, in-band The system can also be managed using SNMP, the most common protocol used today for network management. Standard agent MIBs embedded in the switch provide basic SNMP management through industry-standard SNMP applications. Management security protection is provided based on SNMP community names. See Chapter 4, “SNMP Management,” in the Management Guide for more information.
Auto-negotiation Auto-negotiation is a process that permits the switch to automatically select the operational modes of its 10/100 RJ-45 ports. Upon first being connected, the switch detects the speed of the network the port is connected to, either 10Mbps or 100Mbps, and the type of communication setting, half or full duplex. The port is then automatically set by the switch to operate in the proper mode, without user intervention.
Flow Control Flow control allows you to manage network traffic during congestion periods and to prevent the loss of packets when port buffer thresholds are exceeded. Flow control also serves to deny access to additional traffic that could add to a congestion condition. The VH-2402S switch supports flow control per the IEEE 802.3x standard.
Factory Defaults Table 1-4 lists the default settings for switch configuration parameters with the Management Module installed. Each parameter can be changed via the console menus or Telnet. Table 1-4.
Parameter Default Value Virtual LANs 9033644 Acceptable VLAN Frame Type All Configurable PVID Tagging Yes GVRP Disabled Untagged VLAN Group Assignment 1 VLAN Ingress Filtering False VLAN Learning SVL Product Overview 13
Application Examples The exploding popularity of the Internet and of corporate intranets, as well as new, high-bandwidth desktop applications, are driving the demand for Fast Ethernet. The increase in multimedia traffic and the need to support legacy protocols alongside new, data intensive applications is driving the need for network segmentation and traffic prioritization. The VH-2402S switch is ideal for meeting the needs of today’s high performance networks.
Client/Server Network Application To improve workstation performance in a client/server environment, the VH-2402S 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.
Local Backbone Application The VH-2402S 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. The fiber uplinks are available to connect the switch to a remote location, such as another building floor or a separate building.
2. INSTALLATION Inspecting Your Shipment When you receive the shipment of your switch, check the package contents and make sure you have the following items: • VH-2402S stackable switch • Mounting ears and mounting screws • Four rubber feet • ESD wrist strap • Power cord • Product documentation One 32 cm stack interconnection cable is included with every optional Stacking Module. The 32 cm cable (9380142) can also be ordered separately, if required.
• Environmental Install the VH-2402S 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.” • Ventilation Do not restrict airflow by covering or obstructing air inlets on the side of the switch.
Mounting the Switch in a Rack The switch ships with two (2) multi-position mounting ears and four (4) mounting screws. The mounting screws are used to attach the mounting ears to the switch. Once the ears are attached to the switch, you will need to provide appropriate screws to mount 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: 1.
Connecting Switches to the Stack’s Backplane The optional Stacking Module ships with one 32 cm stacking cable. The 32 cm stacking cable can also be ordered separately, if required. Figure 2-2 shows how the stack cables are cascaded between switches in a stack (rack). To connect up to seven switches to the backplane, plug one end of the stack cable in the “DOWN” port of the top switch and the other end to the “UP” port of the next switch. Repeat this step for each switch in the stack (or rack).
Installing an Optional Module into the Switch Optional modules are available for media expansion, stacking and management. These modules can be installed into the modular slots on the rear panel of the switch. The Management Module must be installed in the upper slot, and the Stacking Module in the lower-left slot. The media extension modules can be installed in either of the two lower slots. DO NOT install slide-in modules with the switch powered on.
Connecting a Terminal to the Console Port The console port is a serial RS-232 interface port that enables a connection to a terminal for performing switch monitoring and configuration functions. The terminal may be a PC or workstation running terminal emulation software, or a terminal configured as a Data Terminal Equipment (DTE) connection. Alternatively, this port can be connected to an external modem to enable remote dial-in management.
3. Connect the other end of the interface cable to a terminal (in some instances, an adapter may be required to make this connection). 4. From your terminal, start the terminal emulation program. 5. Configure the terminal to the following communication settings: VT100 emulation, 19200 baud, no parity, 8 data bits, 1 stop bit, no flow control, ASCII character set.
Management Module Table 2-2 provides information for the Management Module available for the VH-2402S. Table 2-2. Management Module Part Number Functions Description VH-SMGMT RMON/SNMP/ Web Management SNMP agent module used to manage the switch (or attached stack). Includes RS-232 serial port for console connection.
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 2-5). See Appendix A, “Technical Specifications” on page 29 for more information regarding specific international power cord requirements. Figure 2-5. Connecting the Power Cord The Power LED lights green (see Figure 1-1). If it does not, check to make sure that the power cable is plugged in correctly and that the power source is good.
Network Cable Requirements Copper Table 2-3 specifies the cable types and length constraints for the various copper interfaces on the VH-2402S. Table 2-3. Copper Cable Specifications Interface Type Cable Requirement Maximum Length 10Base-T Category 3 or 5 Unshielded Twisted Pair (UTP) 100m (328 ft.) 100Base-TX Category 5 UTP 100m (328 ft.) Fiber Table 2-4 specifies the fiber types, bandwidth requirements, and length constraints for the Fast Ethernet fiber interface on the fiber optic media modules.
Table 2-6 specifies the fiber types, bandwidth requirements, and length constraints for the Gigabit Ethernet long-wavelength fiber interface on the fiber optic media module. Table 2-6. 1000Base-LX Fiber Specifications Fiber Diameter (microns) Modal Bandwidth @ 1300 nm Range 62.5 µm MMF 500 MHz/km 2-550 Meters 50 µm MMF 500 MHz/km 2-550 Meters 50 µm MMF 400 MHz/km 2-550 Meters 10 µm SMF N/A 2-5000 Meters 10Base-T/100Base-TX Ports The 10Base-T/100Base-TX ports use RJ-45 connectors.
100Base-FX/1000Base-SX/LX Fiber Ports The 100Base-FX and 1000Base-SX/LX fiber ports use SC connectors. Figure 2-7 shows an SC fiber connector being inserted into a fiber port on the VH-2402S. Figure 2-7. Inserting an SC Fiber Connector into a Fiber Port The fiber uplink modules employed (Table 2-7) support multi-mode 62.5/ 125µm fiber and single-mode 10/125µm fiber. The 100Base-FX and 1000Base-SX/LX ports use SC fiber connectors. The fiber connectors are configured as a receive (RX) / transmit (TX) pair.
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 IEEE 802.
Electrical Specifications Input voltage: 100-240 VAC Input frequency: 50-60 Hz Maximum power consumption: 80 VA Physical Specifications Height: 2.5 in. (6.4 cm) Length: 11.2 in. (28.5 cm) Width: 17.3 in. (44 cm mountable in a standard 19 in. rack) Weight: 10.63 lb. (4.
Port Specifications Console Port Table A-1 shows the console port pin assignments. Table A-1. RS-232 Console Port Pin Assignments Pin Signal Name 1 DCD 2 RXD 3 TXD 4 DTR 5 Ground 6 DSR 7 RTS 8 CTS 9 RI 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.
MDI/MDI-X Crossover Cable Wiring Figure A-1 shows the wiring scheme for implementing a crossover cable if needed for connection to the switch’s 10Base-T or 100Base-TX ports. Such a cable may be required when connecting the switch to another switch or a hub device. Figure A-1. External Crossover Cable Wiring Power Cord Set Requirements The wide-range input feature of the VH-2402S Ethernet switch permits it to operate from any line voltage between 100 and 240 VAC.
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.
Note 2 Flexible cord must be Type SV, SJ, SPT or equivalent, No. 18 AWG, 3-conductor. Wall plug must be a two-pole grounding type with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A 250V) configuration. Note 3 Appliance coupler, flexible cord, and wall plug must bear a “T” mark and registration number in accordance with the Japanese Dentori Law. Flexible cord must be Type VCT or VCTF, 3-conductor, 0.75mm2 conductor size.
APPENDIX B. FLOW CONTROL Flow control is a mechanism which allows you to protect the switch from overload conditions and to keep additional traffic off the network when excessive congestion will result. Figure B-1 illustrates flow control for both half- and full-duplex applications. Figure B-1. Flow Control for Half- and Full-Duplex Applications Each port of the switch has a transmit queue which buffers frames to be sent out on that port.
36 Flow Control VH-2402S
APPENDIX C.
Term Definition SNMP Simple Network Management Protocol TCP/IP Transmission Control Protocol/Internet Protocol TFTP Trivial File Transfer Protocol TXD Transmit Data UTP Unshielded Twisted Pair VLAN Virtual LAN 38 Acronyms & Abbreviations VH-2402S
INDEX D 1000Base-LX cables, 27 module defined, 6 1000Base-SX cables, 26 module defined, 5 100Base-FX modules defined, 5 10Base-T/100Base-TX ports, 27 802.1D, 7 802.1p, 11 802.1Q, 3, 11 802.3, 27 802.
H N hardware features, 3 hardware tests, 25 network applications, 14 network management features, 3 network traffic analysis, 9 non-volatile Flash memory, 8 null-modem connection, 22 I ID LCD defined, 4 IEEE 802.1D, 7 IEEE 802.1p, 11 IEEE 802.1Q, 3, 11 IEEE 802.3, 27 IEEE 802.
S T safety compliance, 29 SC ports, 28 screws, mounting, 19 SCSI II ports, 6 serial port connecting to, 22 out-of-band management, 8 pin assignments, 31 short-wavelength fiber interface, 26 single-mode fiber, 26, 28 site requirements, 17 slots for modules, 6 SNMP-based network manager, 9 software features, 3 software tests, 25 Spanning Tree Protocol, 7 stacking connecting switches, 20 module features, 2, 6 stack cables, 20 standards compliance, IEEE, 29 Status LEDs, module, 4 store-and-forward switching,
4 Index VH-2402S
150xxx-102 R01
