Lantronix LSB4 Installation Manual

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Manual is about: For Lantronix LSB4 Ethernet Switch

Summary of LSB4

  • Page 1

    The information in this guide may change without notice. The manufacturer assumes no re- sponsibility for any errors which may appear in this guide. Dec, thickwire, thinwire, vms, vt100, and ultrix are trademarks of digital equip- ment corporation. Unix is a registered trademark of at&t. Ethernet is...

  • Page 2: Lsb4 Installation Guide

    Lsb4 installation guide for lantronix lsb4 ethernet switch.

  • Page 3: Contents

    I contents 1 introduction what the lsb4 does............................................................................... 1-1 advantages of the lsb4......................................................................... 1-2 reduction of packet traffic ...............................................

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    Ii 3 set-up and operation accessing the lsb4................................................................................. 3-1 connections from tcp/ip hosts ....................................... 3-2 connections from vms hosts ............................................ 3-6 connections from net...

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    Iii g warranty glossary index.

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    Iv.

  • Page 7: Introduction

    1 introduction introduction what the lsb4 does .................................................................................. 1-1 advantages of the lsb4 ............................................................................ 1-2 reduction of packet traffic .....................................

  • Page 8: What The Lsb4 Does

    Lsb4 installation guide introduction 1-1 introduction introduction congratulations on the purchase of the lantronix model lsb4 switch. This chapter gives a conceptual introduction to the lsb4. Later chapters will cover installation and operation of the switch. For detailed informa- tion on lsb4 conf...

  • Page 9: Advantages of The Lsb4

    Introduction lsb4 installation guide 1-2 introduction advantages of the lsb4 dividing a lan into segments has the following advantages: ♦ reduction of packet traffic ♦ management of packet traffic reduction of packet traffic the lsb4 is designed to be connected to an ethernet; it will divide the eth...

  • Page 10: Initial Lsb4 Configuration

    Lsb4 installation guide introduction 1-3 introduction introduction in the local area network without a switch [figure 1-1], incoming pack- ets are examined by all hosts connected to the network. In the local area network with the lsb4 installed, the only traffic on the sun segment of the switch will...

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    Introduction lsb4 installation guide 1-4 introduction networks and protocols supported the lsb4 supports and processes packets for any ethernet network. The operation of the lsb4 is fully compliant with both the ieee 802.3 ethernet specification and the ieee 802.1d bridge specification. The lsb4 ope...

  • Page 12: Lsb4 Vs. Other Methods

    Lsb4 installation guide introduction 1-5 introduction introduction lsb4 vs. Other methods a switch differs significantly from other methods of connecting ethernet segments together. A few examples of segment connection and the ways in which they differ from a network switch are discussed in table 1-...

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    Introduction lsb4 installation guide 1-6 introduction.

  • Page 14: Installation

    2 installation installation installation instructions............................................................................. 2-1 initializing the lsb4 ................................................................................... 2-4 initial lsb4 configuration ...............................

  • Page 15: Installation Instructions

    Lsb4 installation guide installation 2-1 introduction installation installation instructions to connect the lsb4 to your local area network, complete the following steps: ♦ connect one or all of the lsb4's network ports to an at- tachment unit interface (aui) cable or to a transceiv- er. ♦ connect a...

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    Installation lsb4 installation guide 2-2 installation figure 2-1: lsb4 back and front panels the illustrations on the following page [figure 2-2 and figure 2-3] are ex- amples of the placement and connection of the lsb4 to different types of networks. Lan ports serial console port ac input aui 3 add...

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    Lsb4 installation guide installation 2-3 introduction installation figure 2-2: network configuration example ( thickwire ) figure 2-3: network configuration example ( thinwire/10base-t ) thickwire 10baset hub twisted pair macintosh netware file server sun microvax 10base2 repeater thinwire macintosh...

  • Page 18: Initializing The Lsb4

    Installation lsb4 installation guide 2-4 installation initializing the lsb4 each time the lsb4 is turned on, it will go through an initialization pro- cess. The process consists of the following steps: ♦ power-on diagnostic tests will last approximately 5 seconds. ♦ the contents of the lsb4's intern...

  • Page 19

    Lsb4 installation guide installation 2-5 introduction installation if there is a problem during the initialization process, the serial led will be orange after individualization is complete. If this occurs, see Òpower- up troubleshootingÓ on page 2-10. If a terminal is attached to the serial console...

  • Page 20: Initial Lsb4 Configuration

    Installation lsb4 installation guide 2-6 installation if the messages on the previous page do not appear on the terminal, see power-up troubleshooting on page 2-10. If the characters displayed on the terminal are incoherent, turn the lsb4 off, check the settings on the terminal, the cable connection...

  • Page 21: Changing System Passwords

    Lsb4 installation guide installation 2-7 introduction installation changing system passwords there are two important passwords on the lsb4: the privileged password and the login password. The privileged password is the password that must be entered to become the privileged user. The default privileg...

  • Page 22: Ip Address Configuration

    Installation lsb4 installation guide 2-8 installation ip address configuration the lsb4's ip address must be configured before any tcp/ip functional- ity is available. The address can be defined using a terminal connected to the serial port, or via a host bootp or rarp server. To define the ip addre...

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    Lsb4 installation guide installation 2-9 introduction installation substitute the intended ip address and the hardware address of the switch. Then ping the switch using the following command [figure 2-8]: figure 2-8: ping command when the switch receives the ping packet, it will notice that its ip a...

  • Page 24: Power-Up Troubleshooting

    Installation lsb4 installation guide 2-10 installation power-up troubleshooting there are several possible error situations if the terminal connected to the serial port does not display the welcome message or the leds on the lsb4 do not light properly. Condition : all serial and network port leds di...

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    Lsb4 installation guide installation 2-11 introduction installation condition: all tests have passed successfully but the instructions stored in flash rom have become corrupted. The lsb4 will automatically attempt to find and load a file containing instructions from a host on the local area network....

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    Installation lsb4 installation guide 2-12 installation condition: all tests have passed and the unit is operating normally, but it ap- pears that no packet traffic is being forwarded by the lsb4 to the different segments of the local area network. Cause: there are several conditions that can cause t...

  • Page 27: Set-Up and Operation

    3 set-up and operation installation set-up and operation accessing the lsb4 .................................................................................... 3-1 connections from tcp/ip hosts .............................................. 3-2 connections from vms hosts ..............................

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    3 set-up and operation installation set-up and operation.

  • Page 29: Accessing The Lsb4

    Lsb4 installation guide set-up and operation 3-1 introduction set-up and operation accessing the lsb4 there are two ways to issue commands to the lsb4: through a terminal connected to the serial console port, or through a console somewhere on the local area network. Connecting a terminal to the seri...

  • Page 30

    Set-up and operation lsb4 installation guide 3-2 introduction set-up and operation connections from tcp/ip hosts connecting to the lsb4 from a tcp/ip host consists of two steps: obtain- ing an ip address, and logging into the lsb4. Obtaining an ip address an ip address is required in order to log in...

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    Lsb4 installation guide set-up and operation 3-3 introduction set-up and operation to configure the ip address using rarp or bootp, refer to the rarp/bootp host documentation. Many bootp daemons will not reply to a bootp request if the down- load filename in the configuration file does not exist. If...

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    Set-up and operation lsb4 installation guide 3-4 introduction set-up and operation logging into the lsb4 at the prompt type one of the following [figure 3-4]: figure 3-4: login commands where nnn.Nnn.Nnn.Nnn is the ip address of the lsb4. Nnn is a decimal number from 0 to 255. The following text wil...

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    Lsb4 installation guide set-up and operation 3-5 introduction set-up and operation type a username at the prompt and press the return key. The lsb4 can then be configured as if at a terminal connected to the serial console port. The session can be ended by typing ctrl-d or logout. Any privileged use...

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    Set-up and operation lsb4 installation guide 3-6 introduction set-up and operation connections from vms hosts to access the lsb4 using a vms network host, type the following [figure 3-8]: figure 3-8: vms connect commands lsb4name represents the name of the lsb4 as identified in the ncp ad- dress dat...

  • Page 35

    Lsb4 installation guide set-up and operation 3-7 introduction set-up and operation connections from netware hosts for pc hosts using netware, the brcon utility program is provided with the lsb4 on a dos diskette. Brcon enables a pc host to log into or issue commands to the lsb4. To use the brcon uti...

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    Set-up and operation lsb4 installation guide 3-8 introduction set-up and operation enter the following to log into the lsb4 [figure 3-12]: figure 3-12: login command the display will show [figure 3-13]: figure 3-13: login prompt at the # prompt, type the login password. The password will not be dis-...

  • Page 37: Editing Command Entries

    Lsb4 installation guide set-up and operation 3-9 introduction set-up and operation connections from macintosh hosts using appletalk the maccon utility program is supplied with the lsb4 on a macintosh diskette. Maccon enables a macintosh using appletalk to log into or is- sue commands to the lsb4. To...

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    Set-up and operation lsb4 installation guide 3-10 introduction set-up and operation table 3-1: command line editing keys key purpose return executes the command line delete deletes the character immediately left of the cursor ctrl-a toggles insert mode (insert or overwrite) ctrl-d or ctrl-z logs out...

  • Page 39

    Lsb4 installation guide set-up and operation 3-11 introduction set-up and operation automatic command completion the lsb4 supports two types of automatic command completion: com- mand recall, and partial command completion. Command recall pressing the up arrow and down arrow keys displays previously...

  • Page 40: Common Configuration Changes

    Set-up and operation lsb4 installation guide 3-12 introduction set-up and operation partial command completion can be enabled or disabled; see set/define port command completion in chapter 4 of the lsb4 reference man- ual. Common configuration changes as stated in chapter 2, the lsb4 does not requir...

  • Page 41

    Lsb4 installation guide set-up and operation 3-13 introduction set-up and operation system configuration three of the system configuration options are: modification of the system name, restriction of incoming network logins, and specification of the appletalk zone. System name the system name is use...

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    Set-up and operation lsb4 installation guide 3-14 introduction set-up and operation for more information on the set/define system incoming none com- mand, see chapter 2 of the lsb4 reference manual. Appletalk zone if the lsb4 is connected to an appletalk network that includes a router, the lsb4 will...

  • Page 43

    Lsb4 installation guide set-up and operation 3-15 introduction set-up and operation customizing serial console port settings the default characteristics of the serial console port are listed in figure 3-19. Figure 3-19: serial port default characteristics these settings can be changed using the set ...

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    Set-up and operation lsb4 installation guide 3-16 introduction set-up and operation the lsb4 doesn't need to be rebooted in order for define port commands to take effect; they will take effect as soon as the port is logged out or fin- ishes a print job. When the port characteristics are changed, the...

  • Page 45

    Lsb4 installation guide set-up and operation 3-17 introduction set-up and operation table 3-2: switch configuration commands command command type functionality set/define switch forward delay delay spanning tree controls the delay interval be- tween the lsb4Õs listening, learning , and forwarding st...

  • Page 46

    Set-up and operation lsb4 installation guide 3-18 introduction set-up and operation filter configuration when a packet is received at an lsb4 port, the source and destination ad- dresses of the packet are compared. If the address of the source and desti- nation of a packet are the same, the packet i...

  • Page 47

    Lsb4 installation guide set-up and operation 3-19 introduction set-up and operation the commands in figure 3-22 prevent any ip traffic between lsb4 ports; for example, ip packets from lan 1 cannot reach lan 2, and ip packets from lan 2 cannot reach lan 4. Figure 3-22: preventing ip traffic between a...

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    Lsb4 installation guide set-up and operation 3-20 introduction set-up and operation.

  • Page 49: Technical Support

    A-1 a technical support installation technical support if you are experiencing problems with the lsb4 or have suggestions for improving the product, please contact lantronix technical support at the address or phone number listed below. We are also reachable via internet electronic mail; the ad- dre...

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    Lsb4 installation guide technical support a-2 introduction technical support.

  • Page 51: Spanning Tree Algorithm

    B-1 b spanning tree algorithm installation spanning tree algorithm whenever two or more switches are connected to a local area network, the possibility exists that more than one switch could connect the same seg- ments. This could result in endless loops of packet traffic on the network [figure b-1]...

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    Spanning tree algorithm lsb4 installation guide b-2 spanning tree algorithm the spanning tree algorithm looks at the network and, if it senses more than one path from one segment to another, it will disable all except one path [figure b-2]. A disabled path may affect more than one port on more than ...

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    Lsb4 installation guide spanning tree algorithm b-3 introduction spanning tree spanning tree algorithm caution should be exercised when disabling the spanning tree algo- rithm. If there are multiple paths, packets could be forwarded continu- ously, resulting in packet storms and node crashes. It is ...

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    Spanning tree algorithm lsb4 installation guide b-4 spanning tree algorithm when using the spanning tree algorithm ethernet ports can be in one of seven different conditions or states: ♦ listening: an ethernet port will listen for multicast bridge protocol data unit packets from other switches for t...

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    Lsb4 installation guide spanning tree algorithm b-5 introduction spanning tree spanning tree algorithm particular events on the network can cause the switch to return to the lis- tening and learning states. Selection of a new root is usually the event that will cause this transition. If the spanning...

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    Lsb4 installation guide spanning tree algorithm b-6 introduction spanning tree spanning tree algorithm.

  • Page 57: Pinouts

    C-1 c pinouts installation pinouts figure c-1 shows the pinouts for wiring the lsb4 serial connector. Note that these pinouts assume that the 8-conductor cable connecting the lsb4 and the adapter block is a swapped cable. Figure c-1: lsb4 serial connector pinouts 1 2 3 4 5 6 dtr rxd sg txd dsr 20 3 ...

  • Page 58

    Pinouts lsb4 installation guide c-2 pinouts figure c-2 shows how to wire the rj45 to db25 adapter. Figure c-2: rj45 to db25 adapter a small square connector is provided with the lsb4 adapters. This con- nector is used to connect both transmit and receive grounds from the rj45 cable to the single sig...

  • Page 59

    Lsb4 installation guide pinouts c-3 introduction spanning treepinouts figure c-3: wire splicer to splice the wires, cut off the end of the wire that does not extend through the connector and insert both wires into the connector. Make sure that the wire that does not extend through the connector is i...

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    Pinouts lsb4 installation guide c-4 pinouts rj45 to db9 (ibm pc standard) pinouts to connect the lsb4 serial port to a db9 connector using ibm pc stan- dard pinouts, the following pinouts should be used [figure c-4]. Figure c-4: ibm pc standard pinouts 1 2 3 4 5 6 dtr rxd sg txd dsr 4 2 5 3 6 lsb4 r...

  • Page 61: Serial Cable Limits

    Lsb4 installation guide pinouts c-5 introduction spanning treepinouts serial cable limits lantronix switches are rs-423 compliant, and are thus limited by the equipment at the remote end of the serial line. If the lsb4 is connected to an rs-232 device, it is subject to the rs-232 limits shown below....

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    Lsb4 installation guide pinouts c-6 introduction spanning treepinouts.

  • Page 63: Snmp Support

    D-1 d snmp support installation snmp support snmp is an abbreviation for single network management protocol. Snmp commands enable users (usually system administrators) to get in- formation from and control other nodes on a local area network. Information about snmp can be obtained in rfcs (request f...

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    Snmp support lsb4 installation guide d-2 snmp support the following snmp object groups are supported: system object identifier ::= {mib-2 1} interfaces object identifier ::= {mib-2 2} at object identifier ::= {mib-2 3} ip object identifier ::= {mib-2 4} icmp object identifier ::= {mib-2 5} tcp objec...

  • Page 65: Updating Lsb4 Software

    E-1 e updating lsb4 software updating lsb4 software the latest version of the lantronix lsb4 software and its associated release note can obtained in three ways: from a diskette or other media (if, for ex- ample, a diskette was mailed from lantronix), by downloading directly from the lantronix devel...

  • Page 66: Reloading Flash Rom

    Updating lsb4 software lsb4 installation guide e-2 updating lb software updating lsb4 software reloading flash rom the lsb4 stores its software in flash rom. This software controls the ini- tialization process, the operation of the lsb4, and the processing of com- mands. The contents of flash rom ca...

  • Page 67

    Lsb4 installation guide updating lsb4 software e-3 introduction updating lb software updating lsb4 software to download the lsb.Sys file to the lsb4, enter the following commands [figure e-1]: figure e-1: downloading lsb.Sys file if the pathname contains lower-case characters, the name must be en- c...

  • Page 68

    Updating lsb4 software lsb4 installation guide e-4 updating lb software updating lsb4 software using vax/vms hosts updating the lsb4 using a vax/vms host consists of two steps: making the lsb.Sys file available in the host machineÕs mom$load directory, and downloading the lsb.Sys file from the host ...

  • Page 69

    Lsb4 installation guide updating lsb4 software e-5 introduction updating lb software updating lsb4 software using netware hosts updating with brcon for pc hosts using netware, the brcon utility program is provided with the lsb4 on a dos diskette. Brcon enables a pc host to log into or easily issue c...

  • Page 70

    Updating lsb4 software lsb4 installation guide e-6 updating lb software updating lsb4 software updating without brcon copy the lsb.Sys into the login directory on the netware file server. Without the brcon utility, an lsb4 connection cannot be established; the lsb4 will only be able to access files ...

  • Page 71

    Lsb4 installation guide updating lsb4 software e-7 introduction updating lb software updating lsb4 software updating the lsb4 using bcp the boot configuration program enables a user to configure the lsb4 in the following situations: when the lsb4 fails during initialization, or when an initialize no...

  • Page 72

    Updating lsb4 software lsb4 installation guide e-8 updating lb software updating lsb4 software ♦ set system netserver fileserver: specifies the name of the netware file server from which the lsb4 will attempt to load the lsb.Sys file. Fileserver is any combination of characters. ♦ set system softwar...

  • Page 73

    Lsb4 installation guide updating lsb4 software e-9 introduction updating lb software updating lsb4 software troubleshooting flash rom updates if an attempt to load new flash rom software fails, examine the error message displayed on the terminal connected to the serial console port; it can often ind...

  • Page 74

    Updating lsb4 software lsb4 installation guide e-10 updating lb software updating lsb4 software downloading from the lantronix bbs the lantronix bulletin board system (bbs) uses telebit t2500 modems ca- pable of v.32, v.42, v.42bis, 9600/2400/1200 baud operation. Kermit and pep file transfer protoco...

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    Lsb4 installation guide updating lsb4 software e-11 introduction updating lb software updating lsb4 software figure e-6: lantronix bbs when downloading has been completed, use option 5 to log out of the bul- letin board system. Username: lsb4 password: lanswitch (not echoed) welcome to the lantronix...

  • Page 76

    Updating lsb4 software lsb4 installation guide e-12 updating lb software updating lsb4 software obtaining software via the internet the latest version of the lantronix lsb4 software and its associated release notes can be obtained directly from lantronix using ftp (file transfer pro- tocol) through ...

  • Page 77

    Lsb4 installation guide updating lsb4 software e-13 introduction updating lb software updating lsb4 software enter the following to connect to the lantronix ftp file server [figure e-7]: figure e-7: lantronix ftp file server all released files are in the pub directory. Always transfer the readme fil...

  • Page 78

    Lsb4 installation guide updating lsb4 software e-14 introduction updating lb software updating lsb4 software.

  • Page 79: Lsb4 Speciþcations

    F-1 f lsb4 speciÞcations installation specifications power requirements input voltage: 95-250 vac 3-wire single phase operating current: .5 amp at 120 volts (maximum) power consumption: 30 watts (maximum) frequency: 50 to 60 hz temperature limitations operating: 5 ° to 50 ° c (41 ° to 122 ° f) stora...

  • Page 80

    Specifications lsb4 installation guide f-2 specifications relative humidity limitations operating: 10% to 90% (noncondensing) 40% to 60% recommended storage: 10% to 90% (noncondensing) power supply cord specifications cord type: 3 conductors, 1.0 mm 2 minimum conductor size (approx. 18 awg) rated fo...

  • Page 81

    Lsb4 installation guide specifications f-3 introduction specifications approvals the cord connectors used should bear the approval mark of at least one of the following regulatory and safety agencies [figure f-1]: figure f-1: approval marks ema eur k netherlands (kema) n norway (nemko) nf france (ut...

  • Page 82: Warranty Statement

    Lsb4 installation guide warranty g-1 introduction warranty warranty statement lantronix warrants for a period of five years from the date of shipment that each lantronix lsb4 switch sup- plied shall be free from defects in material and workmanship. During this period, if the customer experiences dif...

  • Page 83

    Lsb4 installation guide warranty g-2 introduction warranty.

  • Page 84: Glossary

    Glossary-i glossary installation glossary address table a table maintained by the lsb containing the addresses of all devices currently on the net- work. When the lsb4 receives a packet from a node on a network segment, it stores the nodeÕs address and the segment on which the node is located in the...

  • Page 85

    Glossary lsb4 installation guide glossary-ii glossary brcon a program that enables a user to connect to the lsb4 from a netware host. To use brcon, see appendix e. Bridge a device that moves (ÒswitchesÓ) packets from one network segment to another. The lsb4 moves packets according to the scheme desc...

  • Page 86

    Lsb4 installation guide glossary glossary-iii introduction glossary filtering rate the maximum number of packets that a switch can receive and discard at the same time. The maximum possible forwarding rate of any switch is the speed of the ethernet (14880 pack- ets per second) multiplied by the numb...

  • Page 87

    Glossary lsb4 installation guide glossary-iv glossary mib management information base; a list of entries that may be queried or modified. The lsb4 supports the bridge mib, which contains lists of bridge-specific information. The information contained in mibs can be retrieved or modified using snmp c...

  • Page 88

    Lsb4 installation guide glossary glossary-v introduction glossary spanning tree algorithm a method used to ensure that there is only one possible path between network segments. The spanning tree algorithm is enabled by default on the lsb4. For details, refer to appendix b. Switch a device that moves...

  • Page 89

    Lsb4 installation guide glossary glossary-vi introduction glossary.

  • Page 90: Index

    Index index index-i a accessing the lsb4 ..................3-1 altitude requirements ..............F-1 b bugs, reporting ........................A-1 c command completion command recall ................3-11 partial command completion .........................3-11 commands, editing .................3-...

  • Page 91

    Introduction index lsb4 installation guide index-ii introduction index l lsb4 advantages of ...................1-2 comparison to other segment connectors .........................1-5 function of ........................1-1 initial configuration ...........1-3 networks and protocols supported ..........