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MUCHO.BK : ch0.fm5 Page ii Thursday, June 26, 1997 11:37 AM © Copyright 1997 Hewlett-Packard Company All Rights Reserved. This document contains information which is protected by copyright. Reproduction, adaptation, or translation without prior permission is prohibited, except as allowed under the copyright laws. Publication Number J3188-90001 Edition 1 July 1997 Applicable Product Disclaimer The information contained in this document is subject to change without notice.
MUCHO.BK : ch0.fm5 Page iii Thursday, June 26, 1997 11:37 AM HP 10Base-T Hub-16M (J3188A) HP 10Base-T Hub-16M (J3188A) The HP 10Base-T Hub-16M (J3188A) is a multiport repeater with 16 twistedpair ports, and one AUI port. With this hub, you can connect computers, printers, and servers together for file sharing. This hub is compliant with the IEEE 802.3 Type 10Base-T standard and supports both 802.3 and Ethernet networks.
MUCHO.BK : ch0.fm5 Page iv Thursday, June 26, 1997 11:37 AM HP 10Base-T Hub-16M (J3188A) Features Network Connections • Sixteen RJ-45 (twisted-pair) ports to connect to end nodes or other devices. • A Media Dependent Interface (MDI) switch for Port 16 which allows you to connect either an end node (MDI-X position) or to cascade a hub (MDI position) to the port, using a “straight-through” twisted-pair cable in both cases. Ports 1 through 15 always are MDI-X.
MUCHO.BK : mucho.TOC Page v Thursday, June 26, 1997 11:37 AM Contents 1 Installing the Hub Installing and Configuring Your Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1. Verify included parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2. Connect the external transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 3. Verify the hub operates correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 4. Mount the hub . . . . .
MUCHO.BK : mucho.TOC Page vi Thursday, June 26, 1997 11:37 AM A Cables and Connectors Recommended Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Twisted-Pair Cable/Connector Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . A-3 Twisted-Pair Cable for Hub-to-Computer Network Connection . . . . A-3 RS-232 Connector and Cable Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . . A-4 Minimum Cable Pinout for ASCII Console Connection . . . . . . . . . . .
MUCHO.BK : mucho.TOC Page vii Thursday, June 26, 1997 11:37 AM Additional Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2 Examples of Backup Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3 How the Backup Function Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3 Configuring a Backup Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-5 Configuration/Installation Sequence . . . . .
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MUCHO.BK : ch1.fm5 Page 1 Thursday, June 26, 1997 11:37 AM 1 Installing the Hub This chapter describes how to install the hub.
MUCHO.BK : ch1.fm5 Page 2 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing and Configuring Your Hub Installing the Hub Installing and Configuring Your Hub To install and configure your hub, you must complete five basic tasks. They are: ■ locating and verifying the necessary parts ■ connecting an external transceiver (if necessary) ■ connecting the hub to a power source ■ mounting the hub ■ connecting the hub to your network 1.
MUCHO.BK : ch1.fm5 Page 3 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing and Configuring Your Hub 1. If your RPS is the primary power source for the hub, disconnect the AC power cord connected directly to the hub for proper operation. If not connecting a Redundant Power Supply, connect included power cord here and to an alternating current power source. Note (Optional) Connect Redundant Power Supply connector cord clip here.
MUCHO.BK : ch1.fm5 Page 4 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing and Configuring Your Hub Installing the Hub 2. Check the LEDs on the hub’s front panel. When the hub is powered on, it performs a power-on self test. See the table below for the LED pattern that occurs during the self test. On for 20 seconds, then enters normal operating state. LED On for five seconds, then enters normal operating state. On for 20 seconds, then enters normal operating state.
MUCHO.BK : ch1.fm5 Page 5 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing and Configuring Your Hub 4. Mount the hub 1. in a rack or cabinet 2. on a table The hardware for mounting the hub is included in the accessory kit (5064-2053) packed with the hub. Before mounting the hub, unplug it. See Appendix G, “Safety and Regulatory Standards,” for general mounting precautions.
MUCHO.BK : ch1.fm5 Page 6 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing the Hub Installing and Configuring Your Hub Table Mounting To place the hub on a table or other horizontal surface, no special tools are necessary. Apply the four feet included in the accessory kit onto the bottom of the hub. Be certain to pick a sturdy table in an uncluttered area. You may want to secure the hub’s cables to the leg of the table to prevent people from tripping over them.
MUCHO.BK : ch1.fm5 Page 7 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing and Configuring Your Hub 5. Connect the hub to your network ■ hub-to-device connections. Connecting to network devices such as computers, and printers. ■ hub-to-hub connections. Connecting to another HP 10Base-T hub, or other Ethernet hub. ■ hub-to-network backbones. Connecting to a network backbone. This section describes the different ways you can connect your hub to your network.
MUCHO.BK : ch1.fm5 Page 8 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing and Configuring Your Hub Connecting Devices to the Hub Installing the Hub To connect a device to the hub, push the RJ-45 plug into the RJ-45 jack until the tab on the plug clicks into place.
MUCHO.BK : ch1.fm5 Page 9 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing and Configuring Your Hub StraightThrough Cable from Hub to PCs Hub attached to Port 16: switch in MDI position and straight-through cable is used. Up to 100 meters PC attached to Port 16: switch in MDI-X position and straightthrough cable is used. ThinLAN Connections With an HP ThinLAN External Transceiver for 10Base2 networks, you can connect your hub or a stack of hubs to a thin LAN network.
MUCHO.BK : ch1.fm5 Page 10 Thursday, June 26, 1997 11:37 AM Installing the Hub Installing the Hub Installing and Configuring Your Hub You can connect up to 30 hubs together on a common ThinLAN segment. The ThinLAN segment can include a computer attached to a hub at one end of the segment that can communicate with a computer attached to another hub at the other end of the segment. By using the BNC port on the module, the maximum repeater hop-count increment through the entire segment is only two.
MUCHO.BK : ch1.fm5 Page 11 Thursday, June 26, 1997 11:37 AM Installing the Hub Interpreting LED Status Connecting the Hub-16M to a Fiber-Optic Backbone Fiber-optic cable to a fiber-optic backbone HP J2606A Fiber-Optic For more information about cabling configuration, see the documentation accompanying the optional transceiver modules. Interpreting LED Status Two types of LEDs exist on the hub. They are: ■ Hub Status LEDs.
MUCHO.BK : ch1.fm5 Page 12 Thursday, June 26, 1997 11:37 AM Installing the Hub Interpreting LED Status Interpreting Hub Status LEDs Installing the Hub The hub status LEDs indicate whether the hub is functioning properly. For further details on error conditions indicated by the Status LEDs, see chapter 2, “Troubleshooting”. LED State SYSTEM (Power) (green) On The hub is receiving power. Off The hub is not receiving power. ACT (Activity) (green) Flickering ON while a packet is being transmitted.
MUCHO.BK : ch1.fm5 Page 13 Thursday, June 26, 1997 11:37 AM Installing the Hub Interpreting LED Status Interpreting Port Status LEDs LED Twisted-pair Port (green) AUI Port (green) State Meaning of LED On Link beat is detected from the attached node. Off The port is not receiving the link beat signal from the attached node. Slow Flash* The port has been auto-partitioned. This port has been autopartitioned (disabled) due to excessive collisions.
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MUCHO.BK : ch2.fm5 Page 1 Thursday, June 26, 1997 11:37 AM 2 Troubleshooting This chapter describes ways to troubleshoot the hub.
MUCHO.BK : ch2.fm5 Page 2 Thursday, June 26, 1997 11:37 AM Troubleshooting Using a Checklist to Diagnose the Hub Using a Checklist to Diagnose the Hub Use the following table to diagnose the problem with your HP Hub-16M. Solution How do I reset the hub? Remove the plug on the power cord from the power source and reconnect it. None of the LEDs are on. Verify that the power cord is plugged into an active power source and to the hub. Make sure these connections are snug.
MUCHO.BK : ch2.fm5 Page 3 Thursday, June 26, 1997 11:37 AM Troubleshooting LED Operation LED Operation The tables on the following pages list the hub’s LEDs, their possible states, and diagnostic tips to resolve any error conditions. LED patterns indicating problems Power Coll Port LED OFF * * Sec * Diagnostic Tips Fault RPS * * Verify that the power cord is plugged into an active power source and to the hub. Make sure these connections are snug.
MUCHO.BK : ch2.fm5 Page 4 Thursday, June 26, 1997 11:37 AM Troubleshooting LED Operation LED patterns indicating problems Troubleshooting Power Coll Port LED Sec Diagnostic Tips Fault RPS ON * Fast Flash Fast Flash * * A security violation has occurred on the port that is flashing. See SEcure command for definition and details in Chapter 3. ON * Slow Flash * Slow Flash * The port has been auto-partitioned because of an excessive collision condition.
MUCHO.BK : ch2.fm5 Page 5 Thursday, June 26, 1997 11:37 AM Troubleshooting Hub Maintenance Tasks Hub Maintenance Tasks There are several hub maintenance tasks you can perform. They include: ■ testing the hub only ■ clearing a password from the ASCII console ■ running connectivity tests Each of these tasks is described in the following sections.
MUCHO.BK : ch2.fm5 Page 6 Thursday, June 26, 1997 11:37 AM Troubleshooting Hub Maintenance Tasks Running Connectivity Tests Both the hub and cabling can be tested by running an end-to-end communications test -- a test that sends known data from one network device to another through the hub -- such that you can verify that the data was correctly transmitted between the devices. Troubleshooting PC sending test packets. PC responding to the test packets.
MUCHO.BK : ch3.fm5 Page 1 Thursday, June 26, 1997 11:37 AM 3 Managing the Hub This chapter describes the features available from an ASCII console. Topics include: ■ setting up the ASCII Console ■ console command reference The HP Hub-16M has SNMP that allows you to manage the hub using one of the following utilities: ■ an ASCII console ■ CiscoWorks ■ any SNMP-compliant network management product except HP AdvanceStack Assistant.
MUCHO.BK : ch3.fm5 Page 2 Thursday, June 26, 1997 11:37 AM Managing the Hub Setting up the ASCII Console Directly, Using A Serial Cable and a Terminal To directly connect a terminal to a hub, follow these steps: 1. Connect an ASCII terminal, or a PC emulating an ASCII terminal, to the RS-232 port using an RS-232-C “null modem” cable. (For pin-outs and recommended cables see Appendix A, “Cables and Connectors”.) 2.
MUCHO.BK : ch3.fm5 Page 3 Thursday, June 26, 1997 11:37 AM Managing the Hub Setting up the ASCII Console Remotely, Using a Modem and a Terminal 1. Use a full-duplex, asynchronous (character-mode) modem only. 2. Connect the modem to the hub’s RS-232 port using an RS-232-C modem cable. (For pin-outs and recommended cables see Appendix A, “Cables and Connectors”.) 3. Configure the modem as described in the Appendix C, “Modem Configuration.” 4.
MUCHO.BK : ch3.fm5 Page 4 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference Console Command Reference Managing the Hub Enter at least the first two letters of a command to execute it, such as HE for the Help command. The Help command displays a screen like the following, listing all commands. Syntax Conventions on Help Screen: < > – Indicates a required parameter. [ ] – Indicates an optional parameter. | – Used as a separator between acceptable variable values.
MUCHO.BK : ch3.fm5 Page 5 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference BAckup To configure one of the hub’s ports for dedicated use in a backup (redundant) link to another hub. An HP Hub-16M allows you to use any two of its network ports for a redundant link to another hub in your network. The backup link normally carries no traffic, but it is automatically activated if the primary link fails. Note that any of the ports can be the backup port to any other port.
MUCHO.BK : ch3.fm5 Page 6 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference CDpstatus To enable or disable the Cisco Discovery Protocol (CDP). The command takes either an ON or an OFF argument. The initial setting is ON. ON enables the protocol. OFF disables it. If no option is chosen, the current status is shown. COunters To display network activity counters for each network port, the hub’s SNMP agent, and the global count for all ports.
MUCHO.BK : ch3.fm5 Page 7 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference DIsconnect To terminate the console session and reset the console port baud rate to be automatically sensed. The command also disconnects the phone link if you accessed the console using modems. IPconfig To set IP (Internet Protocol) configuration parameters on the hub.
MUCHO.BK : ch3.fm5 Page 8 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference Configuring for Network Management If the hub is to be managed from a network management station, it must use the same networking protocol as the network management station. You have these choices: ■ Novell NetWare IPX ■ IP Using Novell NetWare IPX The HP Hub-16M is designed to automatically use Novell NetWare’s IPX protocol.
MUCHO.BK : ch3.fm5 Page 9 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference Parameter Default Value Definition BOOTP protocol enabled YES Keep or set this value to YES if you are using a BOOTP server to provide the IP configuration to the hub. By default, the hub is configured to automatically seek an IP address from a BOOTP server on the network. This is done when the hub is powered on.
MUCHO.BK : ch3.fm5 Page 10 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference network management— also called SNMP event alarms). The start of the table is shown below. Up to ten network management stations can be entered into the table. Entry 0 (zero) is used for the “all managers allowed” entry.
MUCHO.BK : ch3.fm5 Page 11 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference Example: To add the network management station with IP address 190.40.101.10 to the list and to send alarms to that station, the process would appear as follows: Add entry (A), Delete entry (D), or End changes (E): A Enter Manager Address, or (A) to allow all managers access: 190.40.101.
MUCHO.BK : ch3.fm5 Page 12 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference PAssword To set or change the password on the hub. The Password is used to prevent unauthorized access to the hub from network management stations, and through the console interface. The hub is initially shipped without a password. Follow the prompts to enter a new password or to change the existing password. If you assign a password, it is also used as the SNMP community name.
MUCHO.BK : ch3.fm5 Page 13 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference POrt To enable (set to ON) or disable (set to OFF) a hub port. The initial setting for all ports is enabled (ON). You can use the Status command to check the current status of all the ports.
MUCHO.BK : ch3.fm5 Page 14 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference The Late Collision Monitoring option monitors ports for excessive late collisions. If monitored ports experience excessive late collisions, these ports are disabled. See the section on Auto-Partitioning in the chapter that provides the Product Description. SEcure To control or display the hub’s security configuration, and to clear security violation indicators.
MUCHO.BK : ch3.fm5 Page 15 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference Security and port LEDs flash, the intruder’s MAC address is displayed on the console Status command screen, and an alarm is sent to the authorized network management station(s). Use the First Address Heard—provides medium port security. The hub learns the address of the first device attached to the port and makes it the authorized MAC address.
MUCHO.BK : ch3.fm5 Page 16 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference Configuring Security on a Single Port To set or change the security configuration for a single port on the hub (twisted-pair or AUI), enter SE and the port’s ID; for example, SE 4. The port’s current security configuration is displayed, followed by a prompt to change the configuration or not.
MUCHO.BK : ch3.fm5 Page 17 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference pair ports; that is, the security parameters will all be set to NO (configured address selection methods, and learned or assigned addresses are not changed).
MUCHO.BK : ch3.fm5 Page 18 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference ■ Send Alarm when intruder detected? and Eavesdrop prevention?: These parameters are defined earlier in the chapter under “Security Configuration Parameter Definitions”. The values you select for these parameters will be applied to all the twisted-pair ports for which you have selected (or retained) the address selection method.
MUCHO.BK : ch3.fm5 Page 19 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference For Network Management Security. The security violations are indicated by the Security LED flashing and the violating network management station’s address being displayed on the Status command screen.
MUCHO.BK : ch3.fm5 Page 20 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference ■ ■ Redundant Power Supply status: • NOT CONNECTED means the RPS is not attached to the device. • CONNECTED/FAULT means the RPS is attached but is reporting an error. • CONNECTED/GOOD means the RPS is attached with no errors, but has not been enabled.
MUCHO.BK : ch3.fm5 Page 21 Thursday, June 26, 1997 11:37 AM Managing the Hub Console Command Reference TEstlink To run a test of the link between the hub and another IEEE 802.3 device. Note The destination device must be able to send an IEEE 802.2 Test Response packet upon receipt of an IEEE 802.2 Test command packet. The HP Hub16M will respond with the correct packet. You will be prompted for the 12-digit hexadecimal MAC address of the destination device.
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MUCHO.BK : CA.FM5 Page 1 Thursday, June 26, 1997 11:37 AM A Cables and Connectors This appendix lists cables that have been tested and verified for use with the HP Hub-16M. The following topics are covered: ■ recommended Cables ■ twisted Pair Cable/Connector Pinouts ■ RS-232 Connector and Cable Pinouts It also includes minimum pin-out information so, if you wish to use an unlisted cable, you can verify that the cables used in your installation are correctly wired.
MUCHO.BK : CA.FM5 Page 2 Thursday, June 26, 1997 11:37 AM Cables and Connectors Recommended Cables Cables and Connectors The following table shows network connections to the hub.
MUCHO.BK : CA.FM5 Page 3 Thursday, June 26, 1997 11:37 AM Cables and Connectors Twisted-Pair Cable/Connector Pin-Outs Twisted-Pair Cable/Connector Pin-Outs To connect PCs or other network devices to the hub, use a “straight-through” 10Base-T cable. The twisted-pair wires must be twisted through the entire length of the cable. The wiring sequence must conform to AT&T 258A (not USOC). See “Twisted-Pair Cable Pin Assignments” at the end of this chapter for a listing of the signals used on each pin.
MUCHO.BK : CA.FM5 Page 4 Thursday, June 26, 1997 11:37 AM Cables and Connectors RS-232 Connector and Cable Pin-Outs Cables and Connectors RS-232 Connector and Cable Pin-Outs The Management Module’s RS-232 port connector is wired as depicted in the following table. PIN US CCITT DIN 1 DCD 109 M5 2 Rx 104 D2 3 Tx 103 D1 4 DTR 108 S1 5 GND 102 - 6 DSR 107 M1 7 RTS 105 S2 8 CTS 106 M2 9 RI 125 M3 Use the RS-232 port to connect a PC to be used as the console.
MUCHO.BK : CA.FM5 Page 5 Thursday, June 26, 1997 11:37 AM Cables and Connectors RS-232 Connector and Cable Pin-Outs PC end 9-pin male Hub end 9-pin male 2 2 Rx 3 3 Tx 5 5 GND RS-232 Modem Cable Modem end 25-pin male Hub end 9-pin male 2 3 Tx 3 2 Rx 4 7 RTS 5 8 CTS 6 6 DSR 7 5 GND 8 1 CD OR DCD 20 4 DTR 22 9 RI 23 Signal DRS–typically on V.
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MUCHO.BK : CB.FM5 Page 1 Thursday, June 26, 1997 11:37 AM B Specifications Physical Width: 42.5 cm (16.8 in) Depth: 23.8 cm (9.4 in) Height: 4.36 cm (1.7 in) Weight : 8 lbs and 7 oz. (8.7 lbs) Electrical The hub automatically adjusts to any voltage between 100-127 and 200-240 volts and either 50 or 60 Hz. ac voltage: 100–127 volts 200–240 volts Maximum current: 0.3A max 0.
MUCHO.BK : CB.FM5 Page 2 Thursday, June 26, 1997 11:37 AM Specifications Connectors The RJ-45 twisted-pair ports are compatible with the IEEE 802.3 Type 10Base-T standard. Electromagnetic Specifications Emissions: FCC part 15 Class A EN 55022 Class A / CISPR-22 Class A VCCI Level I Complies with Canadian EMC Class A requirements. Complies with Australia/New Zealand EMC Class A requirements.
MUCHO.BK : CC.FM5 Page 1 Thursday, June 26, 1997 11:37 AM C Modem Configuration Before installing the modems (one attached to the hub and one attached to the terminal/PC), configure them by either issuing the appropriate AT command or by setting the modem’s switches, as described in the tables in the rest of this appendix. Hayes Smartmodem Optima 28.8 (V.34) Hayes ACCURA 288 V.
MUCHO.BK : CC.FM5 Page 2 Thursday, June 26, 1997 11:37 AM Modem Configuration Practical Peripherals PM288MT II V.34 At the hub end: Issue the following AT command: A0101: AT&F0&C2S0=1Q2&D3&W0 Next Rev: AT&F0&C1S0=1Q2&D3&W0 At the user end: Issue the following AT command: AT&F0&W0 Intel 14.
MUCHO.BK : CD.FM5 Page 1 Thursday, June 26, 1997 11:37 AM D Network Addressing This appendix describes how network address information is obtained and used. Topics covered are: ■ Communications Between Hub and Network Management Station ■ IPX Addressing for Novell NetWare ■ IP Addresses for IP and non-IP Networks ■ Using BOOTP Communication Between the Hub and Network Management Station The HP Hub-16M can be managed over the network by CiscoWorks network management software.
MUCHO.BK : CD.FM5 Page 2 Thursday, June 26, 1997 11:37 AM Network Addressing IPX Addressing for Novell NetWare IPX Addressing for Novell NetWare The Novell NetWare network operating system uses a proprietary protocol called Internetwork Packet Exchange (IPX). The IPX protocol firmware is always available on an HP Hub-16M; it becomes active when the hub gets an IPX address. The IPX address consists of a network number and a device identification.
MUCHO.BK : CD.FM5 Page 3 Thursday, June 26, 1997 11:37 AM Network Addressing IP Addresses for IP and Non-IP Networks Country Phone Number/E-Mail/URL Company Name/Address United 1-703-742-4777 States/Coun- questions@internic.net tries not in http://rs.internic.net Europe or Asia/Pacific Network Solutions, Inc. Attn: InterNIC Registration Service 505 Huntmar Park Drive Herndon, VA 22070 Europe +31 20 592 5065 ncc@ripe.net http://www.ripe.
MUCHO.BK : CD.FM5 Page 4 Thursday, June 26, 1997 11:37 AM Network Addressing Using BOOTP Time To Live: The number of IP routers a packet is allowed to cross before the packet is discarded. The default value is 32. Increase this value if the hub is managed from a network management station that is more than 32 routers away. The maximum allowable value is 255. Use the IP Configuration command in the ASCII console or CiscoView to specify IP addresses.
MUCHO.BK : CD.FM5 Page 5 Thursday, June 26, 1997 11:37 AM Network Addressing Using BOOTP BOOTP Table File Entries An entry in the BOOTP table file /etc/bootptab for an HP Hub-16M would be similar to the following: hphub16M:\ ht=ether:\ ha=080009123456:\ ip=190.40.101.22:\ sm=255.255.255.0:\ gw=190.40.101.1:\ vm=rfc1048 Definitions of the table entry fields: hphub16M is a user-defined symbolic name to help you find the correct section of the bootptab file.
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MUCHO.BK : CE.FM5 Page 1 Thursday, June 26, 1997 11:37 AM E Backup Links This chapter describes how to use Backup Links on the hub.
MUCHO.BK : CE.FM5 Page 2 Thursday, June 26, 1997 11:37 AM Backup Links How Backup Links Work Backup Links Limitations ■ Each hub can monitor a single backup link (only one backup link can be configured on each hub). But, the hub may be at the remote end of one backup link and at the monitoring end of a backup link to a different hub. ■ A given hub should be connected to the remote end of no more than two backup links.
MUCHO.BK : CE.FM5 Page 3 Thursday, June 26, 1997 11:37 AM Backup Links Examples of Backup Links Examples of Backup Links Hub to a Server Primary Link (fiber) Backup Link (twisted pair) Hub Server Hub to a Switch Backup Link Primary Link Switch A backup link is a separate path connected between the hub and a device. The port through which the cable is connected between the two devices is automatically enabled if the connection designated as the primary link fails.
MUCHO.BK : CE.FM5 Page 4 Thursday, June 26, 1997 11:37 AM Backup Links Backup Links Examples of Backup Links When the primary link is repaired, you must re-enable the primary port. It is not re-enabled automatically. When the primary port is enabled, the backup port is automatically disabled and returned to backup mode. See “Reactivating the Primary Link” later in this appendix.
MUCHO.BK : CE.FM5 Page 5 Thursday, June 26, 1997 11:37 AM Backup Links Configuring a Backup Link Configuring a Backup Link Use the Backup Function. To configure this link, you use the Backup function in the ASCII console.
MUCHO.BK : CE.FM5 Page 6 Thursday, June 26, 1997 11:37 AM Backup Links Identifying the Backup Link Backup Links 5. Enable the primary port in software. This step is necessary because until you have completed step 3 (connecting the cables), the test packets cannot be successfully sent through the primary port. The primary port will therefore be disabled and the backup port will be activated. Once you enable the primary port, it assumes the active role.
MUCHO.BK : CE.FM5 Page 7 Thursday, June 26, 1997 11:37 AM Backup Links Reactivating the Primary Link Reactivating the Primary Link ■ From the ASCII console, select “Port/Segment Configuration”, then “Disable and enable ports option”, then enable ports. ■ From CiscoView, re-enable the primary port. See the network management product documentation for details on how to enable a port. ■ Power-cycle the hub.
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MUCHO.BK : CF.FM5 Page 1 Thursday, June 26, 1997 11:37 AM F Security Information This section describes how to set security for your product.
MUCHO.BK : CF.FM5 Page 2 Thursday, June 26, 1997 11:37 AM Security Information How Intruder Prevention Works How Intruder Prevention Works Security Information Intruder Prevention stops an unauthorized computer (or other device) from actively gaining access to the network. When a port is configured for Intruder Prevention, the hub examines the source address of each packet coming in through that port and compares it with the authorized MAC address.
MUCHO.BK : CF.FM5 Page 3 Thursday, June 26, 1997 11:37 AM Security Information How Eavesdrop Prevention Works Assigning the Authorized MAC address You can assign an authorized MAC address by entering it manually at the hub console interface or at the network management station. Assigning a specific address provides the maximum control of the port’s authorized MAC address.
MUCHO.BK : CF.FM5 Page 4 Thursday, June 26, 1997 11:37 AM Security Information Setting Inbound Security with Intruder Prevention Setting Inbound Security with Intruder Prevention The picture below illustrates the use of inbound security using Intruder Prevention. This type of data security allows only one authorized user per port to access the network. The authorized user is identified by the authorized MAC address of the end node attached to the port.
MUCHO.BK : CF.FM5 Page 5 Thursday, June 26, 1997 11:37 AM Security Information Setting Inbound Security with Intruder Prevention Auto Port Disable Any port may be configured to be disabled automatically when an intruder’s MAC address is detected. This feature is automatically controlled by your selection of the Authorized Address Selection Method for the port: If the address used is the “first heard” or an “assigned” address, the port will be disabled automatically when an intruder is detected.
MUCHO.BK : CF.FM5 Page 6 Thursday, June 26, 1997 11:37 AM Security Information Setting Outbound Security with Eavesdrop Prevention Setting Outbound Security with Eavesdrop Prevention Eavesdrop Prevention allows a port to receive a packet transmitted on the network as valid data only if the port’s MAC address matches the packet’s destination address.
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MUCHO.BK : CG.FM5 Page 1 Thursday, June 26, 1997 11:37 AM G Safety and Regulatory Statements This chapter covers the following topics: ■ mounting precautions ■ power precautions ■ safety and regulatory statements ■ Declaration of Conformity Mounting Precautions When you put a hub into a rack, follow these mounting precautions: ■ The rack or cabinet should be adequately secured to prevent it from becoming unstable and/or falling over.
MUCHO.BK : CG.FM5 Page 2 Thursday, June 26, 1997 11:37 AM Safety and Regulatory Statements Power Precautions Note If your installation requires a different power cord than the one supplied with the hub, be sure to use a power cord displaying the mark of the safety agency that defines the regulations for power cords in your country. The mark is your assurance that the power cord can be used safely with the hub.
MUCHO.BK : CG.FM5 Page 3 Thursday, June 26, 1997 11:37 AM Safety and Regulatory Statements Safety Information Safety Information ! Documentation reference symbol. If the product is marked with this symbol, refer to the product documentation to get more information about the product. WARNING A WARNING in the manual denotes a hazard that can cause injury or death. CAUTION A CAUTION in the manual denotes a hazard that can damage equipment.
MUCHO.BK : CG.FM5 Page 4 Thursday, June 26, 1997 11:37 AM Safety and Regulatory Statements Informations concernant la sécurité Informations concernant la sécurité ! Symbole de référence à la documentation. Si le produit est marqué de ce symbole, reportez-vous à la documentation du produit afin d'obtenir des informations plus détaillées. WARNING Dans la documentation, un WARNING indique un danger susceptible d'entraîner des dommages corporels ou la mort.
MUCHO.BK : CG.FM5 Page 5 Thursday, June 26, 1997 11:37 AM Safety and Regulatory Statements Hinweise zur Sicherheit Hinweise zur Sicherheit ! Symbol für Dokumentationsverweis. Wenn das Produkt mit diesem Symbol markiert ist, schlagen Sie bitte in der Produktdokumentation nach, um mehr Informationen über das Produkt zu erhalten. WARNING Symbol für Dokumentationsverweis.
MUCHO.BK : CG.FM5 Page 6 Thursday, June 26, 1997 11:37 AM Safety and Regulatory Statements Considerazioni sulla sicurezza Considerazioni sulla sicurezza ! Simbolo di riferimento alla documentazione. Se il prodotto è contrassegnato da questo simbolo, fare riferimento alla documentazione sul prodotto per ulteriori informazioni su di esso. WARNING La dicitura WARNINGdenota un pericolo che può causare lesioni o morte. CAUTION La dicituraCAUTION denota un pericolo che può danneggiare le attrezzature.
MUCHO.BK : CG.FM5 Page 7 Thursday, June 26, 1997 11:37 AM Safety and Regulatory Statements Consideraciones sobre seguridad Consideraciones sobre seguridad ! Símbolo de referencia a la documentación. Si el producto va marcado con este símbolo, consultar la documentación del producto a fin de obtener mayor información sobre el producto. WARNING Una WARNING en la documentación señala un riesgo que podría resultar en lesiones o la muerte.
MUCHO.BK : CG.
MUCHO.BK : CG.FM5 Page 9 Thursday, June 26, 1997 11:37 AM Safety and Regulatory Statements Regulatory Statements Regulatory Statements FCC Class A Statement (for U.S.A. Only) This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
MUCHO.BK : CG.FM5 Page 10 Thursday, June 26, 1997 11:37 AM Safety and Regulatory Statements Declaration of Conformity Declaration of Conformity Safety and Regulatory Statements The following Declaration of Conformity for the HP J3188A Hub-16M complies with ISO/IEC Guide 22 and EN 45014.
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MUCHO.BK : cvrb-r1.
MUCHO.BK : cvrb-r1.ft5 Page 6 Thursday, June 26, 1997 11:37 AM Technical information in this document is subject to change without notice.
