Fast EtherHub 3500 System &INO
Installation and User’s Guide Fast EtherHub 3500 System Intelligent Fast Ethernet Stackable Hub with 12 100BASE-TX Ports; including SNMP Management Support
Copyright (c) 1996 by Accton Technology Corporation. All rights reserved. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Accton Technology Corporation. Accton makes no warranties with respect to this documentation and disclaims any implied warranties of merchantability, quality, or fitness for any particular purpose. The information in this document is subject to change without notice.
Package Contents Carefully unpack the contents of the package and verify them against the checklist given below. This checklist applies to all the Fast EtherHub 3500 Series models unless otherwise specified. Package Checklist æ Fast EtherHub-12i Intelligent Fast Ethernet Stackable Hub with 12 100BASE-TX Ports (Model No. EH3512I-TX) or Fast EtherHub-12mi SNMP Intelligent Fast Ethernet Stackable Hub with 12 100BASE-TX Ports; including SNMP Managment Support (Model No.
Quick Installation Accton’s Fast EtherHub 3500 models each contain 12 Fast Ethernet (100BASE-TX) RJ-45 ports, one MDI daisy-chain port, and one slot for an optional connection using 100BASE-TX (10BASE-T), 100BASE-T4 or 100BASE-FX. The smart design built into the front display panel and configure options provide a friendly interface that simplifies installation and network troubleshooting. If you are already familiar with basic network operations, you should be able to install this hub as described below: 1.
Fast EtherHub 3500 System User’s Guide Attach each hub to one of the backplane segments Use the SmartExtender Module to interconnect different segments in the stack Or interconnect the stack’s segments by attaching the daisychain port to a switch, or the station ports to a router Attach to the extended network via the daisy-chain port 6.
Fast EtherHub 3500 System User’s Guide Or attach to the extended network via the SmartExtender Module 10. If an optional SmartExtender Module is installed in the expansion port, it can be used to make a bridged connection from this hub to another network device using 100BASE-TX The SmartExtender Module can (10BASE-T), 100BASE-T4 or 100BASE-FX media types.
Fast EtherHub 3500 System User’s Guide Difference in connecting to the extended network via the daisychain port or SmartExtenter Module Check your connections The Fast EtherHub 3500 stack can be connected to a larger network using any device such as a switch, bridge or router. Depending on your network configuration, you may attain better performance by making a direct connection from the daisy-chain port (or a station port) on this hub to an interconnection device.
About this Guide This guide is designed for the experienced network installer. It describes how to install and operate Accton’s Fast EtherHub 3500 system. After reading this manual, you should be able to use the front display panel and configure options to manage all your network connections. This manual covers the following topics: Chapter 1 - Product Overview Brief description of Fast Ethernet, followed by a description of this hub and a summary of its important features and specifications.
Contents Chapter 1: Product Overview 1-1 Introduction to Fast Ethernet Brief Description of the Fast EtherHub 3500 System Distinguishing Factors of Fast EtherHub 3500 System Basic Features of Fast EtherHub 3500 System Data Switching with the SmartExtender Modules Switching Technology Configuration Options for the SmartExtender Modules Switching Methods 1-1 1-1 1-5 1-6 1-9 1-9 1-9 1-10 Chapter 2: Installing the System 2-1 Pre-Installation Requirements Hardware Installation Stacking Hubs without a Rack
Fast EtherHub 3500 System User’s Guide x Chapter 3: Setting up Network Connections 3-1 Special Architecture Used for the Fast EtherHub 3500 Stack Multi-Segment Architecture FlexBus Management Link Hub ID Setting Using Management Agents Port Backup Function Security Features Sample Network Configurations Attaching the Stack to One Segment Attaching the Stack to Multiple Segments Isolating Specific Hub Connections Isolating Each Hub Extending the Network with Alternate Connections Linking the Stack to a M
Fast EtherHub 3500 System User’s Guide System Configuration Program for the 12mi and Stack Exiting the Configuration Program Restarting the Agent Displaying System Information Configuring the SNMP Agent Configuring SNMP Communities Configuring IP Trap Managers Configuring IPX Trap Managers Changing the Segment Configuration Configuring Hub Parameters Configuring Port Parameters Defining Backup Ports Port Intrusion Control Downloading System Software via a TFTP Server Xmodem Download Changing User Passwords
Fast EtherHub 3500 System User’s Guide Network Connections Station Ports Daisy-Chain Port Serial Port Rear Panel Components Power Supply Modules FlexBus Ports In Out 5-13 5-13 5-13 5-14 5-15 5-15 5-16 5-16 5-16 Appendix A: Troubleshooting A-1 Diagnosing Hub Indicators System Diagnostics Power and Cooling Problems Installation Physical Configuration System Integrity A-1 A-2 A-2 A-2 A-4 A-4 Appendix B: Pin Assignments RJ-45 Port DB9 Serial Port Pin Description Hub’s 9-Pin Serial Port to PC’s 9-Pin COM P
Fast EtherHub 3500 System User’s Guide Underwriters Laboratories Compliance Statement Sicherheitshinweise Appendix E: Product Support Services Product Registration Problem Report Hardware Repair Service Software Update and Upgrade Service Bulletin Board Service (BBS) Interactive Fast Fax (U.S.A.
Fast EtherHub 3500 System User’s Guide List of Figures Figure 2-1 Figure 2-2 Figure 3-1 Figure 3-2 Figure 3-3 Figure 3-4 Figure 3-5 Figure 3-6 Figure 3-7 Figure 3-8 Figure 3-9 Figure 3-10 Figure 3-11 Figure 4-1 Figure 4-2 Figure 4-3 Figure 4-4 Figure 4-5 Figure 4-6 Figure 4-7 Figure 4-8 Figure 4-9 Figure 4-10 Figure 4-11 Figure 4-12 Figure 4-13 Figure 4-14 Figure 4-15 Figure 4-16 Figure 4-17 Figure 4-18 Figure 4-19 Figure 4-20 Figure 4-21 Figure 4-22 Figure 4-23 Figure 4-24 xiv Contents Stacking Hubs wit
Fast EtherHub 3500 System User’s Guide Figure 4-25 Figure 4-26 Figure 4-27 Figure 4-28 Figure 4-29 Figure 5-1 Figure 5-2 Figure 5-3 Figure B-1 Figure B-2 Hub Statistics: Hub Selection Menu Hub Statistics Window Port Statistics: Port Selection Menu Port Statistics Menu SEM Port Statistics Menu Front Panel of EtherHub-12mi Indicators for EtherHub-12mi Rear Panel RJ-45 Connector (on the Hub Side) DB9 Serial Port (on the Hub Side) 4-38 4-38 4-39 4-40 4-42 5-1 5-2 5-15 B-1 B-2 List of Tables Table 2.
Fast EtherHub 3500 System User’s Guide Table 4.22 Table 5.1 Table 5.2 Table 5.3 Table 5.4 Table 5.5 Table 5.6 Table 5.7 Table 5.8 Table 5.10 Table 5.11 Table 5.12 Table 5.13 Table 5.14 Table 5.15 Table 5.16 Table 5.17 Table B.1 Table B.2 Table B.3 Table B.4 Table B.5 Table B.6 Table B.7 Table E.
Chapter 1: Product Overview Introduction to Fast Ethernet Standard 10 Mbps Ethernet has served well for past generations of 80286 and 80386 machines performing simple file transfers. However, with the inevitable growth in corporate network size and the introduction of fully-functional 32-bit PC architectures, and operating systems running complex applications, 10 Mbps Ethernet has become a serious bottleneck.
Fast EtherHub 3500 System User’s Guide Moreover, the Fast EtherHub 3500 System provides advanced network security features including “Intrusion Protection” which ensures that only designated workstations are able to transmit packets onto the network. Management access via the out-of-band serial port or in-band via telnet is also password protected.
Fast EtherHub 3500 System User’s Guide This hub can be used in a stand-alone configuration to form a simple Fast Ethernet LAN networking 2 to 12 computers using the RJ-45 station ports. Further network expansion can be achieved using the embedded tri-segment backplane, the MDI daisy-chain port, or one of the optional SmartExtender Modules.
Fast EtherHub 3500 System User’s Guide via auto-sensing. Transmission mode for 100BASE-T4 is fixed at half duplex. • 100BASE-FX (EM3551-FX-SC or EM3551-FX-ST) Provides two SC or ST type connectors for 100BASE-FX connection. Transmission mode is automatically set to half or full duplex via auto-negotiation. Transmission speed is fixed at 100 Mbps. Power Module Power Module (EM3550-PWR) Slide-in power module for use in the slots on the back of hub.
Fast EtherHub 3500 System User’s Guide Distinguishing Factors of Fast EtherHub 3500 System This system provides the following key features: • Provides multi-segment architecture allowing the network to be split into three segments • Supports fault-tolerant configuration by allowing port link backup and agent backup • Supports management functions via SNMP • Supports on-board management (using Accton’s proprietary Fast EtherHub 3500 System Configuration Program), and full software configurable in-band ma
Fast EtherHub 3500 System User’s Guide Basic Features of Fast EtherHub 3500 System In addition to all the features mentioned above, the system provides: Basic Repeater Functions • Repeats all incoming frames to the connected segment • Automatically partitions and reconnects devices which experience excessive collisions • Jabber lockup protection provided by disabling any port that receives 64 Kbytes of continues data, and re-enabling the port after the condition improves Outstanding Performance • Total
Fast EtherHub 3500 System User’s Guide • Firmware update supported for the Fast EtherHub-12mi models via out-of-band Xmodem file transfer through the serial port, or in-band TFTP file transfer over the network Networking Flexibility (via SmartExtender Modules) • One slot supports optional slide-in network extender modules for connection to 10BASE-T, 100BASE-TX, 100BASE-T4 or 100BASE-FX (on a separate segment) • Transparent bridging (between stack and external device) via optional network extender modules
Fast EtherHub 3500 System User’s Guide • Adapts to universal wide range voltage power (i.e., 100V AC to 240V AC 10%, 50~60 3Hz) • Provides a slot for an optional backup power supply Complete Standards Conformance • Conforms to IEEE 802.3u Class I repeater specification and 100BASE-TX standard (i.e.
Fast EtherHub 3500 System User’s Guide Data Switching with the SmartExtender Modules Switching Technology The SmartExtender Modules that plug into the expansion slot on the front panel of the Fast Ethernet 3500 series use advanced switching techniques to provide a high-speed network backbone. Each extender module acts as a two-port Ethernet switch which effectively partitions the stack from the backbone.
Fast EtherHub 3500 System User’s Guide As a device functioning on the media access control (MAC) layer, the extender modules are protocol independent, and therefore compatible with IEEE802.3, IEEE802.3u, TCP/IP, NetWare, DECnet and XNS protocols. They can provide a connection between conventional 10BASE-T and high-speed 100BASE-TX networks; or can serve as a 2-port bridge in a 100BASE-TX or 100BASE-FX environment.
Fast EtherHub 3500 System User’s Guide flawless performance. To ensure that you can manage any kind of network load, the extender modules provide adaptive cutthrough switching based on Accton’s smart algorithm. This method dynamically changes the way it handles data based on the current error rate. This switching strategy start at fragmentfree for a clean to moderately dirty data environment, and changes to store-and-forward for a highly contentious environment.
Chapter 2: Installing the System This chapter describes how to install the Fast EtherHub unit and establish network connections. You may install this hub on any level surface (e.g., a table or shelf) or in a standard equipment rack. However, please take note of the following minimum site requirements before you begin.
Fast EtherHub 3500 System User’s Guide Hardware Installation F This hub is suitable for desktop or rack-mount installation. A good location is at the center of all the devices you want to link, close to a collapsed backbone, and near a power outlet. These hubs can be stacked with other hubs using a mounting rack or directly on top of one another. Refer to the sections on Stacking Hubs without a Rack or Mounting Hubs in a Rack for a description of these methods.
Fast EtherHub 3500 System User’s Guide Mounting Hubs in a Rack If you need to install a redundant power module, refer to Installing a Backup Power Supply on page 2-11, and complete that procedure before stacking the hub. Please comply with the following instructions to ensure that your hub is securely mounted in the rack. 1. Use an standard EIA 19-inch rack. 2. Use a Phillips (i.e., cross-head) screwdriver to attach the brackets to the sides of the hub. 3.
Fast EtherHub 3500 System User’s Guide Connecting the Hub System Remember to label all your connections at both ends of the cable to facilitate troubleshooting or future changes to network configuration. The Fast EtherHub has 12 RJ-45 shielded ports (i.e., 100BASE-TX) that support connections to 100 Mbps Fast Ethernet. Ports 1 - 12 (MDI-X) allow you to connect to devices such as a workstation, server or router. While Port 12 (MDI) lets you easily cascade to a compatible switch (i.e.
Fast EtherHub 3500 System User’s Guide 2. Connect one end of the cable to the RJ-45 port of the network interface card, and the other end to any available (MDI-X) station port on the hub. Just remember that if you use Port 12MDI-X, the daisy-chain port (12MDI) cannot be used. When inserting an RJ-45 plug, be sure the tab on the plug clicks into position to ensure that it is properly seated. Using the hub in a stand-alone configuration, you can network up to 12 nodes.
Fast EtherHub 3500 System User’s Guide Making a Connection via the MDI Daisy-Chain Port The Fast EtherHub 3500 hubs are Class I repeaters. Class I repeaters cannot be cascaded to another repeater in the same collision domain. The daisy-chain port can only be cascaded to another device which breaks up the collision domain (e.g., an Ethernet switch).
Fast EtherHub 3500 System User’s Guide 10BASE-T 100BASE-TX 100BASE-T4 100BASE-FX - EM3551-TX SmartExtender Module - EM3551-TX SmartExtender Module - EM3551-T4 SmartExtender Module - EM3551-FX-ST SmartExtender Module EM3551-FX-SC SmartExtender Module Note: The EM3551-TX automatically adjusts to 10 or 100 Mbps using auto-sensing. Refer to SmartExtender Module in Chapter 1. I Retain the face plate for possible future use. I The SmartExtender Modules and not hot-swappable.
Fast EtherHub 3500 System User’s Guide connect one end of the cable to the MDI port on the extender module, and the other end to the MDI-X port on the target device (or vice versa). When inserting an RJ-45 plug, be sure the tab on the plug clicks into position to ensure that it is properly seated. Note that as a general rule, the length of any twisted-pair cable should not exceed 100 meters.
Fast EtherHub 3500 System User’s Guide Note: To determine the power loss incurred by intervening devices and specific cable type, inquire with the manufacturer. The power budget depends on the gauge of cable as shown below. Gauge of Fiber Cable 50/125 mm 62.5/125 mm Power Budget 9.2 dB 13 dB Table 2.2 Power Budget for Common Guage Fiber Optics For a sample calculation, assume the following values: • cable gauge - 62.
Fast EtherHub 3500 System User’s Guide Setting the Communication Mode - The 100BASE-TX and 100BASE-FX SmartExtender Modules both support half and full-duplex communications. The hub uses auto-negotiation to determine the transmission mode for any new connection made to these modules. However, if a connected device does not also support auto-negotiation, and a link cannot be established using half duplex (i.e.
Fast EtherHub 3500 System User’s Guide SEM RJ-45 SEM SEG1 SEG2 RJ-45 SEG3 This stack has been fully interconnected using two extender modules. Interconnecting Stack Segments - Hubs can be completely isolated from the stack, or can be attached to any of the three available segments embedded in the backplane. When attached to a segment (i.e., common collision domian), the hub can communicate with all other devices attached to that segment.
Fast EtherHub 3500 System User’s Guide Powering on the Hub 1. Plug one end of the power cord into a power outlet, and the other end into the power socket at the rear of the hub (in that order for reasons of safety). Then plug in the backup power module if you purchased this option. For reliable backup, connect the backup power module to a separate AC circuit. 2. Check the LED indicator marked PWR1 (or PWR2) on the front panel to see if it is on.
Fast EtherHub 3500 System User’s Guide The following table shows the components to be tested.
Fast EtherHub 3500 System User’s Guide Configuring a Manageable Stack To manage the stack with the on-board configuration program or any optional network management software, the stack must include an EtherHub-12mi (i.e., a unit with an SNMP agent). Moreover, the network management station must be able to access the segment containing the management agent. You should also consider adding a backup SNMP agent to provide greater management reliability for critical applications.
Fast EtherHub 3500 System User’s Guide Verifying Port Status Check each connection by viewing the port status indicators listed below. (For a more detailed description on these indicators, refer to Chapter 5.) LED State Indication Link On Port has established a valid network connection. Traffic Blinking Traffic is traversing the port. Tx/Rx1 Blinking Traffic is traversing the port. 1001 On Communications have been set to a speed of 100 Mbps. FDX1 On Communications have been set to full-duplex mode.
Fast EtherHub 3500 System User’s Guide • Verify that you have not exceeded the specified limits for any attached media type as summarized in the following table: Media Type Twisted Pair Fiber Opitc Maximum Length (meters) 100 412 (at half duplex) 2000 (at full duplex) Table 2.5 Maximum Cable Length • If a computer is attached to the hub, verify that its adapter card is functioning properly by trying it in another computer that has been successfully connected to the network.
Chapter 3: Setting up Network Connections Special Architecture Used for the Fast EtherHub 3500 Stack Multi-Segment Architecture The Fast EtherHub 3500 system supports multi-segment configuration through the FlexBus cabling. Three Ethernet segments (i.e., separate collision domains) are embedded in the hub’s FlexBus port (i.e., the stack’s backplane). You can choose to attach a hub to one of these segments, or to leave it isolated except for the management channel. Nodes attached to a specific segment (e.
Fast EtherHub 3500 System User’s Guide FlexBus 3500 Management Link The management link in a chain of cascaded hubs must be connected to manage the stack as a single unit. This means that only hubs connected using the FlexBus can be controlled by an SNMP management agent (i.e., Fast EtherHub-12mi). At most, 6 hubs can be managed and linked together using the FlexBus connection. Hub ID Setting In a stacked system, each hub should have a unique ID number to identify itself.
Fast EtherHub 3500 System User’s Guide Multiple Agents The on-board configuration program only provides access to the private MIB. To gain full SNMP functionality, you must use optional network management software (e.g., AccView/Open). You may include multiple agents in a stack. To provide a failsafe backup management agent, include it in the same segment with the Master agent. You may also use several active agents in the same stack.
Fast EtherHub 3500 System User’s Guide Port Backup Function The Fast EtherHub 3500 system supports a port backup function (i.e., a redundant link). A hub system can have up to 18 pairs of redundant links. These links are configurable using the in-band or out-of-band management program. When a primary link fails, the secondary (i.e., backup) link automatically takes over. Notes: 1. To prevent traffic from looping, the primary port is enabled and the backup port disabled.
Fast EtherHub 3500 System User’s Guide Sample Network Configurations The Fast EtherHub 3500 series stackable hubs are designed to provide flexibility in configuring network connections. This hub can be used as a simple stand-alone hub or connected to other network interconnection devices in various configurations. This section includes sample applications, most of which take advantage of the multi-segment architecture. Pay attention to the examples that illustrate how to segment a hub stack.
Fast EtherHub 3500 System User’s Guide Attaching the Stack to Multiple Segments This example shows 3 independent Ethernet LANs in a stacked system. Hubs 1 and 2 are attached to segment 1, while hubs 3 and 4 are attached to segment 2, and hubs 5 and 6 are attached to segment 3. This configuration serves to both balance the network load and improve performance. Using three separate segments provides 300 Mbps of Ethernet bandwidth to the overall stack.
Fast EtherHub 3500 System User’s Guide Isolating Specific Hub Connections You can interconnect or isolate the hubs in a stack using a multi-segment configuration. In a stacked system, some hubs may be connected to a segment while others are isolated (not attached to any segment). In this example, hubs 1 and 2 are attached to segment 1, while hubs 3 and 4 are attached to segment 2. However, hubs 5 and 6 are not connected to any segment. These hubs form isolated segments.
Fast EtherHub 3500 System User’s Guide Isolating Each Hub In this example, each hub in the stack is an independent segment (i.e., isolated collision domain). Hubs 2 to 6 are not connected to any of the 3 segments embedded in the FlexBus 3500 cable. ID 1 E the rH ub 350 0 A G E NT M AN AG E M E N T C H ANN E L E therH ub3500 HU B ID 2 S E G . L IN K 1 S E G . L IN K 2 E therH ub3500 HU B ID 3 ID 4 S E G .
Fast EtherHub 3500 System User’s Guide Extending the Network with Alternate Connections You can extend your network by connecting any of the hubs in a stacked system to other compatible hubs via the SmartExtender Module. In the diagram below, a stand-alone hub is connected to hub 3 in the stacked system using the extender module. However, remember that the Fast EtherHub 3500 Agent can only manage hubs connected to it through the FlexBus connection.
Fast EtherHub 3500 System User’s Guide Linking the Stack to a Management Station In a stacked system, connect the in-band management workstation to the same segment that the management agent is attached to. In this example, the management agent is attached to segment 1. Thus, the in-band management workstation (e.g., a PC running AccView/Open) should also be connected to segment 1. SEGMENT 1 EtherHub 3500 AGENT MANAGEMENT CHANNEL EtherHub3500 HUB SEG. LINK 1 SEGMENT 1 SEG.
Fast EtherHub 3500 System User’s Guide Interconnecting the Segments The 3 segments within a stacked system can be combined into an interconnected network using the SmartExtender Modules. For example, you can connect all the segments in the stack using just two extender modules as shown below. Using this approach, you provide a higher bandwidth by using three separate collision domains, but still permit stations to communicate with nodes in other segments, as required.
Fast EtherHub 3500 System User’s Guide Connecting Remote Stacks Fast EtherHub stacks can be connected by using the SmartExtender Modules. For example, you can connect two stacks by running a cable from the extender module in one stack to any station port in a remote stack. When using twisted-pair cable, the maximum cable length is 100 meters. Also note that when you connect directly to a repeater bus in this manner, the transmission mode is limited to half duplex.
Fast EtherHub 3500 System User’s Guide Operating in the Novell NetWare IPX Environment If you’re using Novell NetWare server as your Network Operating System, you can have up to 3 LAN adapters installed in the File Server. With this type of setup, the network is perceived as logically divided into different collision domains, but the File Server is still accessible by all nodes.
Fast EtherHub 3500 System User’s Guide Operating in the TCP/IP Environment In TCP/IP Internet environment, gateways are used to improve performance and regulate network traffic by confining most network activity to their respective local network, and still maintain communication links among LANs of the same or different architectures. You can implement an IP subnet gateway if you have an IP network address (e.g., 140.20.0.0).
Fast EtherHub 3500 System User’s Guide Connecting to the Network Backbone The stack can be connected to the network backbone by attaching it to a device such as a Fast Ethernet switch. The following figure shows a direct connection from the stack’s daisy-chain port to a 100BASE-TX switch which is serving as collapsed network backbone.
Chapter 4: Configuring the System Making the Connections Required for System Configuration The Fast EtherHub 3500 series provides a menu-driven configuration program. This program can be accessed by making a connection to the serial port on the front of the hub (using a terminal or a computer running a terminal emulation program).
Fast EtherHub 3500 System User’s Guide • Remote connection - making a modem connection via the hub’s serial port to the on-board menu-driven configuration program; or using SLIP over TCP/IP from a remote site to access the hub with optional network management software. Direct Connection The Fast EtherHub-12i does not include a management agent. Configuration options for this model are therefore limited to direct connection only.
Fast EtherHub 3500 System User’s Guide Local In-Band Telnet Connection Before accessing a hub using a Telnet connection, be sure you have already set the agent’s IP address via the onboard configuration program or boot protocol. Prior to accessing the hub via an in-band Telnet connection, you must first configure it with a valid IP address, subnet mask, and default gateway using an out-of-band connection or boot protocol. (Refer to Using the Fast EtherHub 3500 Configuration Program later in this chapter.
Fast EtherHub 3500 System User’s Guide Remote Connection If you want to use a remote PC to configure either of the Fast EtherHub-12mi models via modem connections, at the remote site make sure the modem’s baud rate is 9600 and that the AT command set is supported. Configuring the Fast EtherHub Site Connect your modem and PC at the remote site.
Fast EtherHub 3500 System User’s Guide Before accessing a hub using Remote In-Band - You can also make a remote network in-band management software connection to the Fast EtherHub-12mi via the serial port using from a remote site, be sure you SLIP protocol over TCP/IP. Using this kind of connection, you have already set the hub’s serial IP address via the on-board can manage the hub or other attached network devices using inconfiguration program or boot band network management software.
Fast EtherHub 3500 System User’s Guide The physical setup and connections required for on-board management are described in greater detail at the beginning of this chapter. To open the Fast EtherHub 3500 System Configuration Program, do the following: 1. Activate the Fast EtherHub 3500 System Configuration Program from a local console, via Telnet, or via modem connection as described below.
Fast EtherHub 3500 System User’s Guide 2. The login procedure for the Fast EtherHub-12i configuration program requires a password only. Access priviledges are Read/Write, and the default password is “admin.” When logging into the Fast EtherHub-12mi configuration program, you must provide both a user name and password. The default user names are “admin” and “guest.” The Administrator account has read/write access, and the Guest has read-only access. For initial configurations, the password is blank.
Fast EtherHub 3500 System User’s Guide • When configuring a Fast EtherHub-12mi or the connected stack, you can use a direct connection to the managment port, use a Telnet connection from a networked computer, or use a standard modem connection from a remote computer.
Fast EtherHub 3500 System User’s Guide Menu selections are briefly described in the following table. Field Command Set hub ID Set Segment Set SEM status Change password Write values to EEPROM Change isolation status Exit Description Press “h” to set the hub identifier to any value from 1 ~ 6. When stacked with a management agent, note that all hub identifiers are automatically configured. Press “s” to attach the hub to backplane segment 1 ~ 3. Press “e” to display the menu for the SmartExtender Module.
Fast EtherHub 3500 System User’s Guide The current settings for the extender module are displayed in the status field. Menu selections are briefly described in the following table. Field Command Set duplex Set forward mode Set back pressure Return to Main Menu Description Press “d” to set the transmission mode to half-duplex, full-duplex or autonegotiation. All Fast EtherHubs are set to auto-negotiation when powered up. Any changes to transmission mode will be lost if the power to the hub is reset.
Fast EtherHub 3500 System User’s Guide System Configuration Program for the Fast EtherHub-12mi and Stack With this program you can define system parameters, manage and control stacked hubs and associated ports, and monitor network conditions. Set up a management connection to the hub, and enter a user name and password. User names are “admin” (read/write access) or “guest” (read access). No password is configured for the default configuration. The following menu will be displayed after logging on.
Fast EtherHub 3500 System User’s Guide To select a configuration item, use the arrow keys to position the cursor (i.e., the highlighted box), and then press the [Enter] key. Configuration items followed by dots (...) open up another menu screen. Menu selections are briefly described in the following table.
Fast EtherHub 3500 System User’s Guide Restarting the Agent Use the Restart System command under the Main Menu to reset the agent and all devices managed by the agent. The hardware configuration for the agent and system tests are displayed on the management console, similar to the messages shown in the following example.
Fast EtherHub 3500 System User’s Guide Displaying System Information Use the System Information command to display and modify general information about the EtherHub stack, or for quick system identification. View a description of the system similar to that displayed in the following example: System Information Return to Previous Panel System Description : Accton Fast EtherHub 3500 System System Object ID : 1.3.6.1.4.1.2.6.
Fast EtherHub 3500 System User’s Guide Configuring the SNMP Agent When using SNMP-based network management software (e.g., the optional AccView/Open package), you must specify basic parameters that control management access to the system. Use the SNMP Configuration menu to display the following screen: parameters: SNMP Configuration Return to Previous Panel Send Authentication Fail Trap : YES SNMP Communities ... IP Trap Managers ... IPX Trap Managers ... Display or work with IPX trap managers.
Fast EtherHub 3500 System User’s Guide Configuring SNMP Communities Access to the hub’s on-board management agent via in-band management software is controlled with community strings. Use the SNMP Communities command to edit community strings and access rights as shown below: SNMP Communities Return to Previous Panel Community Name 1. public 2. xray 3. 4. 5. Access READ ONLY READ/WRITE READ ONLY READ ONLY READ ONLY Status ENABLED ENABLED DISABLED DISABLED DISABLED Return to previous panel.
Fast EtherHub 3500 System User’s Guide Configuring IP Trap Managers When the hub experiences an unusual event, a message is issued to all listed network managers. Networks compliant with Internet Protocol (IP) can pass trap messages to IP Trap Managers as shown below: IP Trap Managers Return to Previous Panel IP Address 1. 2. 3. 4. 5. Community Name 203.70.236.106 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.
Fast EtherHub 3500 System User’s Guide Configuring IPX Trap Managers When the hub experiences an unusual event, a message is issued to all listed network managers. Networks compliant with Internetwork Packet Exchange (NetWare IPX) protocol can pass trap messages to IPX Trap Managers as shown below: IPX Trap Managers Return to Previous Panel IPX Address 1. 2. 3. 4. 5.
Fast EtherHub 3500 System User’s Guide Changing the Segment Configuration When accessing the EtherHub system with in-band tools such as SNMP, Telnet or TFTP, you must configure the hub to use IP, IPX or SNMP over Ethernet protocols. Use the Segment Configuration menu to display the following screen: Segment Configuration Return to Previous Panel Segment 1 : R&D Segment 2 Segment 3 : 203.70.236.1 : 255.255.255.0 : 203.70.236.254 : 203.70.236.9 Save to EEPROM 203.70.236.2 255.255.255.0 0.0.0.0 0.0.0.
Fast EtherHub 3500 System User’s Guide Menu items are briefly described in the following table. Field Segment Name IP Configuration IP Address Subnet Mask Gateway IP Serial IP Save to EEPROM IPX Frame Type Internal IPX Network IP Protocol IPX Protocol SNMP over Ethernet Description A name you can assign to the segment. The hub system may be run on SNMP protocol over UDP/IP transport protocol.
Fast EtherHub 3500 System User’s Guide Configuring Hub Parameters Use the Hub Configuration menu under the Configuration Panel to configure any hub in the stack. This menu is used to configure the repeater and management modules. Use the following menu to select the required hub, or to change the numeric identifier for any hub in stack. Hub Configuration: Hub Selection Menu Return to Previous Panel Hub 1 Configuration ... Hub 2 Configuration ... Hub 3 Configuration ... Hub 4 Configuration ...
Fast EtherHub 3500 System User’s Guide Hub Configuration To configure a hub, select it from the list shown above. The following Hub Configuration menu will appear, allowing you to set parameters for the base repeater unit or the network management module. Hub Configuration Return to Previous Panel Hub ID Name Segment Status Power 1 Power 2 :1 : H/W Group :1 : ATTACHED : OPERATIONAL : NOT PRESENT Position Type H/W Ver F/W Ver :1 : EH3512M-TX :0 : 1.
Fast EtherHub 3500 System User’s Guide Menu items are briefly described in the following table. Board (Repeater Unit) Field Hub ID Network Management Power 1 Power 2 Position Type H/W Ver F/W Ver Status Segment Module (NMM) Bootup Option Description Hub identifier within the stack. (Up to 6 hubs may be connected via the FlexBus management channel.) Any user-defined name for the selected hub. The hub may be isolated from the backplane or attached to the backplane.
Fast EtherHub 3500 System User’s Guide Hub ID Configuration To change the numeric hub identifier, select Hub ID Configuration from the Hub Configuration: Hub Selection Menu shown above. The following Hub ID Configuration menu will appear. After changing a hub identifier, verify the change with the “Enable Above Settings” command. Hub ID Configuration Return to Previous Panel Position Hub ID 1. 2. 3. 4. 5. 6. 1 2 3 4 5 6 Enable Above Settings Return to previous panel. Use arrow keys to move.
Fast EtherHub 3500 System User’s Guide Configuring Port Parameters Use the Port Configuration menu under the Configuration Panel to configure the ports for any hub in the stack. Select the port type for the required hub from the following menu.
Fast EtherHub 3500 System User’s Guide Configuring Repeater Ports If you select the repeater port type (i.e., 1 through 12), the Port Configuration Menu will open. This menu displays the ID and stack position of the selected hub, and also allows you to enable/disable any repeater port in the selected hub. Port Configuration Return to Previous Panel Hub ID : 1 Position : 1 Port ID Name Type Admin Status Oper Status Link State 1. 100BASE-TX ENABLED ENABLED DOWN 2. 100BASE-TX ENABLED DISABLED DOWN 3.
Fast EtherHub 3500 System User’s Guide Configuring the SmartExtender Module If you select the SmartExtender Module (i.e., SEM), the SEM Port Configuration Menu will open. This menu allows you to configure various communication parameters for this module.
Fast EtherHub 3500 System User’s Guide Menu items are briefly described in the following table. Field Hub ID Position Port ID Name Link State Type Description Hub identifier within the stack. The physical position in the stack (as determined by its position from the top of the FlexBus chain). Identifies this port as the SmartExtender Module. User-defined name for selected port. Indicates if the port has a valid connection to an external device.
Fast EtherHub 3500 System User’s Guide Defining Backup Ports Use the Port Backups menu under the Configuration Panel to define up to 6 master/slave port pairs. If the connection to the master port fails, the slave port will automatically take over. For greater reliability, primary and secondary ports should be located on different hubs. Use the following menu to specify and activate port backup pairs. Backup Set 1. 2. 3. 4. 5. 6.
Fast EtherHub 3500 System User’s Guide Port Intrusion Control Use the Port Intrusion Control menu under the Configuration Panel to restrict access for any port to an authorized source address. Select the required hub from the following menu. Port Intrusion Control: Hub Selection Menu Return to Previous Panel Hub 1 Port Intrusion Control ... Hub 2 Port Intrusion Control ... Hub 3 Port Intrusion Control ... Hub 4 Port Intrusion Control ... Hub 5 Port Intrusion Control ... Hub 6 Port Intrusion Control ...
Fast EtherHub 3500 System User’s Guide Use the Port Intrusion Control Menu to define the MAC address for the device authorized to access a port, and set the response type, as shown in the following example. Port Intrusion Control Return to Previous Panel Hub ID : 1 Port ID 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
Fast EtherHub 3500 System User’s Guide Downloading System Software via a TFTP Server Use the TFTP Download command under the Configuration Panel to download firmware updates into the hub. You may upgrade firmware from a server attached to the local network, or remotely via a serial link using TFTP over SLIP. Specify the IP address for the TFTP server, the filename, and the download mode. The download file should be a binary file from Accton; otherwise the agent will not accept it.
Fast EtherHub 3500 System User’s Guide Menu items are briefly described in the following table. Field Download Server IP Download Filename Download Mode Description IP address of a TFTP server. (TFTP stands for Trivial File Transfer Protocol.) The *.bin file to download. You can download to permanent flash ROM or temporary storage in RAM (for test purposes). However, if you download to temporary memory, this firmware will be lost upon power off.
Fast EtherHub 3500 System User’s Guide Xmodem Download Use the Xmodem Download menu under the Configuration Panel to download firmware to the hub. The Xmodem protocol is used to transfer binary files over a PC connection (i.e., using terminal emulation or modem access software). Specify the download mode and select Process Download. Open the file transfer utility in your terminal emulation or modem access program, specify the filename, and then start file transfer.
Fast EtherHub 3500 System User’s Guide Changing User Passwords The on-board configuration program includes two fixed user types, including Admin and Guest. The access privilege is Read/Write for administrator and Read Only for guest. The default user names are “admin” and “guest,” without passwords. The administrator is the only user with write access for agent parameters. You should therefore assign a password to administrator as soon as possible, and store it in a safe place.
Fast EtherHub 3500 System User’s Guide Console Lockout This function instructs the configuration program to automatically lock the console if no keyboard input is detected for the defined delay time. The Console Lockout menu is shown below. Console Lockout Return to Previous Panel Status : ON Delay Time : 20 Minutes Return to previous panel. Use arrow keys to move. to confirm. to return to Main Menu.
Fast EtherHub 3500 System User’s Guide Segment Statistics Displays statistics for the stack’s segments. These values can be used to indicate the approximate load balance in your stack. If the loading is severly unbalanced, you may consider adjusting your network connections or segment assignments. The Segment Statistics window is shown below. Screen statistics are not automatically refreshed from the agent. Select Refresh Statistics to update the displayed values.
Fast EtherHub 3500 System User’s Guide Hub Statistics Displays statistics for any hub in the stack. Select the required hub from the following menu. Hub Statistics: Hub Selection Menu Return to Previous Panel Hub 1 Statistics ... Hub 2 Statistics ... Hub 3 Statistics ... Hub 4 Statistics ... Hub 5 Statistics ... Hub 6 Statistics ... Return to previous panel. Use arrow keys to move. to confirm. to return to Main Menu.
Fast EtherHub 3500 System User’s Guide Displayed items are briefly described in the following table. Field Hub ID Position Frames Bytes Collisions Alignment Errors CRC Errors Total Errors Symbol Errors Description Hub identifier within the stack. The physical position in the stack (as determined by its position from the top of the FlexBus chain). Number of frames passing through this device. Number of bytes passing through this device. Number of simultaneous node transmissions detected by this device.
Fast EtherHub 3500 System User’s Guide Statistics for Repeater Ports Statistics for repeater ports covers a wide range of Ethernet variables. If any of the error indications are extremely high, there may be a problem with the port, the attached device, or the network cabling. (The System Diagnostics section in Appendix A provides help on troubleshooting.) The Port Statistics window is shown below. Screen statistics are not automatically refreshed from the agent.
Fast EtherHub 3500 System User’s Guide Displayed items are briefly described in the following table. Field Hub ID Position Port ID Readable Frames Readable Octets FCS Errors Alignment Errors Frames Too Long Short Events Runts Collisions Late Events Data Rate Mis. Auto Partitions Total Errors LSA Changes Last Source Addr. Symbol Errors Description Hub identifier within the stack. The physical position in the stack (as determined by its position from the top of the FlexBus chain).
Fast EtherHub 3500 System User’s Guide Statistics for SmartExtender Module Statistics for the SmartExtender Module includes the basic Ethernet variables shown below. Screen statistics are not automatically refreshed from the agent. Select Refresh Statistics to update the displayed values. The values displayed have been accumulated since the last system reboot or counter reset.
Chapter 5: Hardware Reference Before connecting any network device to this hub, please review Chapter 2 for information on system installation, Chapter 3 for a brief look at common network architectures, and Chapter 4 for information on system configuration via the menu-driven interface. This chapter describes the hardware features of the Fast EtherHub 3500 Series. If you are not sure how to make network connections, or do not understand the hub’s indicators, you should refer to this chapter.
Fast EtherHub 3500 System User’s Guide Indicator Panel The SmartWatch panel includes comprehensive indicators for monitoring the hub. It displays the status of the network connections for each port, the hub’s connection to the stack, and the status of the on-board SNMP agent. (Note that Master and Backup LEDs are not provided for the Fast EtherHub-12i.) A quick glance can provide critical information, such as if a power module has failed or if a problem exists on the network.
Fast EtherHub 3500 System User’s Guide There are four optional SmartExtender Modules as described under Connecting to a SmartExtender Module in Chapter 2. The indicators provided with each module are described below. EM3551-TX for 100BASE-TX or 10BASE-T EM3551-T4 for 100BASE-T4 EM3551-FX-ST for 100BASE-FX EM3551-FX-SC for 100BASE-FX LED State 100 ON OFF FDX ON OFF Col BLINKING Link ON Tx ON Rx ON Indication Port is set at 100 Mbps. Port is set at 10 Mbps. Port is set for full-duplex operation.
Fast EtherHub 3500 System User’s Guide SNMP Color: Label: Function: Green SNMP Indicates that an SNMP frame is being received by the Agent. LED Activity BLINKING LIGHT NO LIGHT Condition ON OFF Indication Hub is presently receiving an SNMP frame. Hub is not receiving an SNMP frame. Table 5.5 SNMP Indicator In a stacked system where a Master and Slave agent exist, the SNMP LED of the active agent will blink if an SNMP frame is received.
Fast EtherHub 3500 System User’s Guide Management Agent Indicators Color: Labels: Function: LED Green Master, Backup Displays the status of on-board management agents. Master Condition ON Backup OFF ON OFF Indication SNMP module is installed and functioning as the primary agent. SNMP module is not installed or has failed. SNMP module is installed and functioning as a backup agent. SNMP module may not be installed.
Fast EtherHub 3500 System User’s Guide Hub ID LED 1 Hub ID LED 2 Hub ID LED 4 Hub ID Number Setting ON ON ON (DEFAULT) Used for automatic Hub ID setting. ON OFF OFF Hub ID 1 OFF ON OFF Hub ID 2 ON ON OFF Hub ID 3 OFF OFF ON Hub ID 4 ON OFF ON Hub ID 5 OFF ON ON Hub ID 6 Table 5.7 Hub Indicators Serial Color: Label: Function: Green Serial Indicates connection to a management console. LED Activity BLINKING LIGHT Condition ON NO LIGHT OFF Table 5.
Fast EtherHub 3500 System User’s Guide Terminator Color: Label: Function: This LED shows if the hub is connected to the stack’s backplane and the FlexBus cable properly terminated. Green Terminator Indicates if a unit is located in a terminal position in a stacked system. The unit has an auto-terminate function that is enabled when it is at the end of a stack. Note that in a stand-alone configuration, this LED is ON because of the auto-terminate function.
Fast EtherHub 3500 System User’s Guide There are 5 LEDs representing the percentage of network bandwidth in use by the attached (or isolated) segment. When active, these LEDs look like a stereo’s equalizer display. The hub updates this display every 0.5 seconds. For example, if network utilization reaches 1%, the LED labeled 1 will light. However, if network utilization rises above 1% (e.g., 30%), the LED labeled 30 and all the other LEDs before it (i.e., 1, 5, and 15) will light in rapid succession.
Fast EtherHub 3500 System User’s Guide For example, if packet collisions reach 1%, the LED labeled 1 will light up. However, if collisions go beyond 1% (e.g., 15%), the LED labeled 15+ and all the other LEDs before it (i.e., 1, 3, 5, and 10) will also light up in rapid succession. F When more than 31 consecutive collisions occur on the cable segment connected to a port, that port is automatically partitioned by the hub.
Fast EtherHub 3500 System User’s Guide Disable - Disabling a F port is the same as manually partitioning it, except that you must also manually reconnect it. For example, to prevent a certain device from accessing the network or to reduce network traffic you may opt to disable the port. No incoming packet transmission can occur on a disabled port. Ports can be disabled/enabled using the on-board configuration program or via optional network management software.
Fast EtherHub 3500 System User’s Guide Link - The Link LED should light up when a device (e.g., computer, hub or router) establishes a valid connection via the RJ-45 port. Troubleshooting - If the Link LED does not light up when a device is connected to a port, check that both the hub and connected device are powered on. For devices connected to the hub using twisted-pair cable, check that the cable length does not exceed 100 meters.
Fast EtherHub 3500 System User’s Guide After power on, the hub automatically performs a diagnostic test. The diagnostic tests display results for the repeater board via the Partition/Disable LEDs on the front panel. Test results for the agent board can only be seen via a console connection to the serial port. The following table shows how test results for the repeater board are indicated by the Partition/Disable LEDs.
Fast EtherHub 3500 System User’s Guide Network Connections The front panel on the Fast EtherHub 3500 Series provides the following network options: • Connections to end-node devices using RJ-45 station ports. • Cascaded connection to a compatible switch or router using the daisy-chain port. • Backbone connection using the SmartExtender Modules for 100BASE-TX (10BASE-T), 100BASE-T4 or 100BASE-FX. Station Ports The hub has 12 RJ-45 station ports that can be used to connect end-node devices (e.g.
Fast EtherHub 3500 System User’s Guide Serial Port Use the UTP cable and connection converter provided with your unit for plugging into a PC or modem as described in Chapter 4. Note that configuration options provided for the Fast EtherHub12i are limited because this model does not include an agent. Moreover, configuration via the serial port on this model is limited to the attached hub only (i.e., it cannot manage other hubs in the stack). 5-14 The unit has one 9-pin RS232 male connector labeled Serial.
Fast EtherHub 3500 System User’s Guide Rear Panel Components The rear panel is also similar for all versions. Figure 5.3 shows the rear panel, which includes a primary power supply, a slot for an optional secondary power supply module, and two backplane connectors used for stacking up to 6 hubs. For easier management and control of the hub, familiarize yourself with the indicators, ports, and backplane connectors provided by the hub.
Fast EtherHub 3500 System User’s Guide FlexBus 3500 Ports The unit has two SCSI FlexBus connectors labeled In and Out for combining the hub with other compatible hubs to form a single repeater stack. The FlexBus 3500 stack cable that comes with this package is used specifically for these ports. Only hubs cascaded through the In and Out connection can be managed by a network management agent. In Using a FlexBus 3500 cable, connect this port to the “ Out” port of any Fast EtherHub 3500 series hub.
Appendix A: Troubleshooting Diagnosing Hub Indicators The Fast EtherHub 3500 Series can be easily monitored through its comprehensive panel indicators. These indicators assist the network manager in identifying problems the hub may encounter. This section describes common problems you may encounter and possible solutions. Symptom: Link indicator does not light up (green) after making a connection. Network interface (e.g.
Fast EtherHub 3500 System User’s Guide System Diagnostics Power and Cooling Problems If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply as explained in the previous section. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet, and verify that the fans on back of the unit are unobstructed and running prior to shutdown.
Fast EtherHub 3500 System User’s Guide then communications are set to half duplex by default. Based on this type of industry-standard connection policy, if you are using a full-duplex device that does not support auto-negotiation, communications can be easily lost (i.e., reset to the wrong mode) whenever the attached device is reset or experiences a power fluctuation. The best way to resolve this problem is to upgrade these devices to versions which support autonegotiation. Cabling 1.
Fast EtherHub 3500 System User’s Guide Physical Configuration If problems occur after altering the network configuration, restore the original connections, and try to track the problem down by implementing the new changes, one step at a time. Ensure that cable distances and other physical aspects of the installation do not exceed recommendations (Chapter 2). System Integrity As a last resort verify the hub’s integrity with a power-on reset. Turn the power to the hub off and then on several times.
Appendix B: Pin Assignments RJ-45 Port Figure B-1 RJ-45 Connector (on the Hub Side) RJ-45 station ports (MDI-X) can be attached to any devices which use a standard LAN interface (e.g., a workstation, server or router). RJ-45 daisy-chain ports (MDI) can be cascaded to a station port on similar networking devices (e.g., a switch).
Fast EtherHub 3500 System User’s Guide DB9 Serial Port Pin Description The DB9 serial port on the front panel is used to connect the hub to a management device. The on-board menu-driven configuration program can be accessed from a terminal, a PC running a terminal emulation program, or from a remote location via a modem connection.
Fast EtherHub 3500 System User’s Guide Hub’s 9-Pin Serial Port to PC's 9-Pin COM Port Hub’s 9-Pin Serial Port 1 DCD 2 RXD 3 TXD 4 DTR 5 SGND 6 DSR 7 RTS 8 CTS 9 RI Cable Wiring PC's 9-Pin COM Port 1 DCD 2 RXD 3 TXD 4 DTR 5 SGND 6 DSR 7 RTS 8 CTS 9 RI Table B.
Fast EtherHub 3500 System User’s Guide Hub’s 9-Pin Serial Port to PC's 25-Pin DTE Port Hub’s 9-Pin Serial Port 1 DCD 2 RXD 3 TXD 4 DTR 5 SGND 6 DSR 7 RTS 8 CTS 9 RI Cable Wiring PC’s 25-Pin DTE Port 4 RTS 3 TXD 2 RXD 6 DSR 7 SGND 20 DTR 5 CTS 8 DCD 22 RI Table B.
Fast EtherHub 3500 System User’s Guide Hub’s 9-Pin Serial Port to Modem's 25-Pin DCE Port Hub’s 9-Pin Serial Port 1 2 3 4 5 6 7 8 9 Modem's 25-Pin DCE Port < ---------- DCD ---------< ---------- RXD --------------------- TXD -------- > ------------ DTR -------- > ----------- SGND --------< ---------- DSR --------------------- RTS -------- > < --------- CTS ----------< ----------- RI ------------ 8 3 2 20 7 6 4 5 22 Table B.
Appendix C: Product Specifications Product Specifications Repeater Board Access Method Standards Conformance Communication Rate Media Supported Number of Ports Configuration Indicator Panel Microprocessor Fault Tolerance Dimensions Power Input Power Consumption Temperature Humidity Certification Emissions Immunity Safety Product Specifications CSMA/CD, 100 Mbps IEEE 802.
Fast EtherHub 3500 System User’s Guide Repeater Stack Expansion Expansion Interface Configuration Segmentation Up to 6 modules (72 station ports) FlexBus 3500 stack cable (68 wires) Automatic hub-ID and bus termination Supports 3 or more segments in a stack Extender Port Access Method Standards Conformance Communication Rate Communication Mode CSMA/CD, 10 Mbps or 100 Mbps IEEE 802.
Appendix D: Regulatory Standards EMI Warning FCC Class A Certification This device complies with Part 15 of the FCC Rules. Operation is subject to the following 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.
Fast EtherHub 3500 System User’s Guide Note: In order to maintain compliance with the limits of a Class A digital device, Accton requires that you use a quality interface cable when connecting to this device. Changes or modifications not expressly approved by Accton could void the user’s authority to operate this equipment. Suggested cable type is: • 2-pair 100WSTP/UTP for RJ-45 connections: 100BASE-TX (10BASE-T) • 4-pair 100WSTP/UTP for RJ-45 connections: 100BASE-T4 • 50/125 or 62.
Fast EtherHub 3500 System User’s Guide EN55022 Declaration of Conformance This is to certify that the Accton Ethernet Hub is shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN55022:1987 Class A (CISPR 22:1985/BS 6527:1988). CE Mark Declaration of Conformance This is to certify that this product complies with ISO/IEC Guide 22 and EN45014.
Fast EtherHub 3500 System User’s Guide Safety Compliance Underwriters Laboratories Compliance Statement Important! Before making connections, make sure you have the correct Cord Set. Check it (read the label on the cable) against the following specification list.
Fast EtherHub 3500 System User’s Guide Sicherheitshinweise 1. Die Steckdose muß sich in der Nähe des Gerätes befinden und leicht zugänglich sein. 2. Zum Reinigen den Stecker aus der Steckdose ziehen. Beim Reinigen keine Flüssigreiniger oder Sprays verwenden, sondern ein angefeuchtetes Tuch. 3. Das produkt gerät nicht in Naßräume oder in der Nähe von Wasser benutzen, wie z.B. Badezimmer, Schwimmbad, Spülbecken usw. . Das Eindringen von Wasser kann zur Zerstörung des Gerätes führen. 4.
Appendix E: Product Support Services Product Registration Fill in the Owner Registration Card and mail it to Accton Technology Corporation. Accton will keep your record and inform you of any new Accton unit developments. Problem Report If problems occur during unit operation, please check the adapter configuration settings, cables, connectors, network terminators, hardware compatibility and other network components.
Fast EtherHub 3500 System User’s Guide Software Update and Upgrade Service Accton constantly improves its software units by adding enhancements and new features. Minor software updates are free of charge. If greater changes have been made to the software, Accton offers software upgrade services at a specially reduced price. Bulletin Board Service (BBS) • In countries other than the U.S., call 886-3-5770-654 to reach Accton Taiwan’s modem line. Modems with 14400 through 2400 baud are supported.
Fast EtherHub 3500 System User’s Guide Technical Support Your dealer or installer is the person who understands your network and Accton units. If neither is available to help you, Accton technical support engineers are available by fax, mail or phone. • Send your technical questions by fax to: International Headquarters: 886-3-5770-267 USA Headquarters: 408-452-8988 • To obtain software upgrades connect via ftp to ftp.accton.com.tw • Send your technical questions by email to support@accton.com.
Fast EtherHub 3500 System User’s Guide Limited Warranty Accton warrants to the original owner that the product delivered in this package will be free from defects in material and workmanship for the lifetime of the product. For the warranty to apply, you must register your purchase by returning the registration card indicating the date of purchase and including proof of purchase.
Fast EtherHub 3500 System User’s Guide Return Process Before you may return any Accton product to Accton, you must request an RMA number by calling, faxing or writing Accton’s Service Department at the address listed below. If you ship the product, you must assume the risk of damage or loss in transit. You must use the original container (or the equivalent) and pay the shipping charge.
Fast EtherHub 3500 System User’s Guide Accton Offices Accton Australia, Unit 23, No.27 Doomben Ave., Eastwood, N.S.W. 2122, Australia Phone: 612-8582436 fax: 612-8581723 Accton Technology Corporation International Headquarters, No. 1 Creation Rd. III, Science-based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Hsinchu: Phone: 886-3-5770-270, fax: 886-3-5770-267, 886-3-5775-541 BBS: 886-3-5770-654 Taipei: Phone: 886-2-577-1220 to 9 fax: 886-2-577-0816 Accton Deutschland, Bahnhofstr.
Fast EtherHub 3500 System User’s Guide Ordering Information • Fast EtherHub-12i Intelligent Fast Ethernet Stackable Hub with 12 100BASE-TX Ports (EH3512I-TX) • Fast EtherHub-12mi SNMP (EH3512M-TX) Intelligent Fast Ethernet Stackable Hub with 12 100BASE-TX Ports; including SNMP Managment Support • SmartExtender Modules Slide in module with 1 100BASE-TX, 100BASE-T4 or 100BASE-FX Uplink Port The 100BASE-TX module runs at 10 or 100 Mbps (via auto-detection).
Glossary 10BASE-T IEEE’s specifications for running 10 Mbps Ethernet using twisted-pair cable (100W STP or UTP). The maximum length of cable for a point-to-point connection is 100 meters, and the maximum number of nodes is 1024. 100BASE-TX IEEE’s specifications for 100 Mbps Ethernet using 2-pairs of Category 5 twisted-pair cable. The Fast EtherHub 3500 models require 100 W STP or UTP cable. The maximum length of cable for a point-topoint connection is 100 meters, and the maximum number of nodes is 1024.
Fast EtherHub 3500 System User’s Guide Collision A condition in which two packets transmitted over a medium interfere with each other. Their interference makes both signals unintelligible. The transmitting devices have to halt transmission for a random period of time before trying to send data again. Note that collisions do not occur on fullduplex connections. Configuration The way to set up a computer, server, or local area network.
Fast EtherHub 3500 System User’s Guide FlexBus Ports SCSI ports found at the backplane of the EtherHub labeled In and Out. These ports are used for linking the hub to other compatible hubs using Accton’s FlexBus 3500 cable. IEEE 802.3 Standard Standard for the physical and electrical connections in local area networks developed by the IEEE (Institute of Electrical and Electronics Engineers). The IEEE 802.3u standard covers these same issues for 100 Mbps networks.
Fast EtherHub 3500 System User’s Guide MIB (Management Information Base) An acronym for Management Information Base. It is a set of database objects that contains information about the device. MII (Media Independent Interface) IEEE’s specifications for a multi-media interface that supports 100BASE-TX, 100BASE-T4, 100BASE-FX or 10BASE-T. Multi-Segment Architecture Type of architecture that enhances traffic management and network bandwidth utilization by segregating network traffic.
Fast EtherHub 3500 System User’s Guide Station Port (MDI-X) MDI-X ports which are used for connecting the hub to any workstation or server that has a properly installed network adapter card. (For port 12, the selector switch must be set to MDI-X.) STP (Shielded Twisted-Pair) 100W Category 5 twisted-pair wire covered with an external aluminum-foil or woven-copper shield designed to reduce excessive noise pick up or radiation.
Index A Accessing the Configuration Management Program • 4-5 AccView/Open • 1-4 Applications Attaching the Stack to Multiple Segments • 3-6 Attaching the Stack to One Segment • 3-5 Connecting Remote Stacks • 3-12 Connecting to the Network Backbone • 3-15 Extending the Network with Alternate Connections • 3-9 Interconnecting the Segments • 3-11 Isolating Each Hub • 3-8 Isolating Specific Hub Connections • 3-7 Linking a Stack to a Network Management Station • 3-10 Operating in Novell NetWare IPX Environment •
Fast EtherHub 3500 System User’s Guide Isolation • 5-7 Link • 5-3 Link/Activity • 5-10 Management Agents • 5-5 Master • 5-5 Partition/Disable • 5-9 Port Status • 5-10 Power • 5-2 Rx • 5-3 Segment • 5-4 Serial • 5-6 SmartExtender Module • 5-2 SNMP • 5-4 Terminator • 5-7 Tx • 5-3 Utilization • 5-7 Installation Mounting Hubs in a Rack • 2-3 Stacking Hubs without a Rack • 2-2 Installing a Backup Power Supply • 2-11 Installing a SmartExtender Module • 2-7 Installing an SNMP Backup Agent • 2-14 Installing the Sys
Fast EtherHub 3500 System User’s Guide Maximum Segment Length • 2-9 Multi-segment Architecture • 3-1 Multiple Agents • 3-3 N Network Connection MDI Daisy-chain Port • 2-6 MDI-X Station Port • 2-4 Verifying • 2-15 Network Connections • 5-13 Network Managment Software • 1-4 O On-board Configuration Program Configuring the Remote Site • 4-4 Remote Configuration Methods • 4-4 Remote Out-of-band Connection • 4-4 Setting Communication Parameters • 4-4 Ordering Information • E-7 P Package Contents • i Partition
Fast EtherHub 3500 System User’s Guide Collisions • 4-37, 4-39, 4-41 CRC Errors • 4-37, 4-39 Data Rate Mismatch • 4-41 FCS Errors • 4-41 Frames • 4-37, 4-39 Frames Too Long • 4-41 Late Events • 4-41 Runts • 4-41 Short Events • 4-41 Symbol Errors • 4-37, 4-39 Total Errors • 4-37, 4-39, 4-41 S Safety Compliance • D-4 Sample Network Configurations • 3-5 Security Features Intrusion Protection • 3-4 Segment Configuration • 4-19 Segment Statistics • 4-37 Segments Interconnecting • 2-11 Serial Port • 5-6, 5-14 Se
EH3512I-TX EH3512M-TX E1296-R01 150136-101