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Lantronix LSB4 Reference Manual
The information in this guide may change without notice. The manufacturer assumes no
responsibility for any errors which may appear in this guide.
DEC, thickwire, thinwire, VMS, VT100, and ULTRIX are trademarks of Digital Equipment
Corporation. UNIX is a registered trademark of AT&T. Ethernet is a trademark of XEROX.
NetWare is a trademark of Novell Corp. AppleTalk, Chooser and Macintosh are trademarks of
Apple Computer Corp.
Copyright 1994, Lantronix. All rights reserved. No part of the contents of this book may be
transmitted or reproduced in any form or by any means without the written permission of
Lantronix. Printed in the United States of America.
The revision date for this manual is August 15, 1994.
Part Number: 900-041
WARNING
This equipment has been tested and found to comply with the limits for a Class A digital
device pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable pro-
tection against such interference when operating in a commercial environment. This equip-
ment generates, uses, and can radiate radio frequency energy, and if not installed and used in
accordance with this guide, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause interference in which case
the user, at his or her own expense, will be required to take whatever measures may be
required to correct the interference.
Warning: Changes or modiÞcations to this device not explicitly approved by Lantronix will
void the user's authority to operate this device.
Cet appareil doit se soumettre avec la section 15 des statuts et r•glements de FCC. Le fonction-
nement est subjectŽ aux conditions suivantes:
(1)
Cet appareil ne doit pas causer une interfŽrence malfaisante.
(2)
Cet appareil do”t accepter n'importŽ quelle interfŽrence re“ue qui peut causer une
opŽration indŽsirable.
Summary of LSB4
Page 1
The information in this guide may change without notice. The manufacturer assumes no responsibility for any errors which may appear in this guide. Dec, thickwire, thinwire, vms, vt100, and ultrix are trademarks of digital equipment corporation. Unix is a registered trademark of at&t. Ethernet is a t...
Page 2: Lsb4 Reference Manual
Lsb4 reference manual for lantronix lsb4 ethernet switch.
Page 3: Contents
I contents 1 introduction about this manual ...................................................................................................1-1 manual conventions ................................................................................................1-2 2 system commands introduction ......
Page 4
Ii 6 filter commands introduction ...............................................................................................................6-1 configuring a filter list ...........................................................................................6-2 set/define filter ...............
Page 5: Introduction
1 introduction about this manual ................................................................................................................. 1-1 manual conventions .............................................................................................................. 1-2 required parame...
Page 6: About This Manual
Lsb4 reference manual introduction 1-1 about this manual this manual lists all commands that can be used in conjunction with the lsb4. These commands can be used to configure the switch to specific needs, such as limiting access to the switch or setting a particular data transfer rate. All parameter...
Page 7: Manual Conventions
Introduction lsb4 reference manual 1-2 manual conventions all command names are displayed in all capital letters. Manual conventions for command parameters are discussed in the following paragraphs. Required parameters ♦ required parameters are parameters that must be used with a par- ticular comman...
Page 8: System Commands
2 system commands introduction ............................................................................................................................. 2-1 set/define system .................................................................................................................. 2-2 sh...
Page 9: Introduction
Lsb4 reference manual system commands 2-1 introduction system commands are used to configure and display the lsb4Õs non-switch functions, such as incoming logins, password protection, and the host from which software will be downloaded. Some of the system commands require the user to have privileged...
Page 10: Set/define System
System commands lsb4 reference manual 2-2 set/define system parameters incoming telnet enables incoming telnet connections. None disables incoming telnet connections. Password establishes a password requirement for logging into the lsb4. Nopassword removes the password requirement for logging into t...
Page 11: Set/define System (Cont.)
Lsb4 reference manual system commands 2-3 set/define system (cont.) parameters currentprivpswd any combination of six digits or letters. Prompt selects a custom command prompt. Promptstring any combination of up to sixteen printable ascii characters. The following special character combinations may ...
Page 12: Show/monitor/list System
System commands lsb4 reference manual 2-4 show/monitor/list system parameters bootparams displays reloading information including the file name and path as specified by the set/define system software com- mand, and the load host name specified by the set/define protocol commands. Characteristics dis...
Page 13: Set Privileged
Lsb4 reference manual system commands 2-5 set privileged parameters privileged when entered, the user is prompted to enter the current priv- ileged password as specified by a set or define system privi- leged command. When the privileged password is accepted, supervisor status is given. This status ...
Page 14
System commands lsb4 reference manual 2-6.
Page 15: Protocol Commands
3 protocol commands introduction ............................................................................................................................. 3-1 set/define protocol ................................................................................................................ 3-2 ...
Page 16: Introduction
Lsb4 reference manual protocol commands 3-1 introduction protocol commands are used to specify, configure and display the lsb4Õs proto- col settings. Protocol settings are for setting values for incoming logins and for downloading software. Set/define protocol set protocol and define protocol accept...
Page 17: Set/define Protocol
Protocol commands lsb4 reference manual 3-2 set/define protocol when the lsb4 is booted up, the appletalk, ip, and netware protocols (dis- cussed below) are enabled. To improve performance, disable any protocols that are not being used. Parameters appletalk zone specifies an appletalk zone in which ...
Page 18: Set/define Protocol (Cont.)
Lsb4 reference manual protocol commands 3-3 set/define protocol (cont.) parameters ip loadhost specifies the name of a tftp host to be used to download soft- ware to the lsb4. Name any combination of characters, or an ip address. If the speci- fied name contains lower case letters, it must be enclos...
Page 19: Set/define Protocol (Cont.)
Protocol commands lsb4 reference manual 3-4 set/define protocol (cont.) restrictions this command requires privileged status. Examples local> set protocol ip loadhost “elmer.Cid.Ins.Com” local> set protocol appletalk zone “lab_zone” local> set protocol netware loadhost “acct_fserv” see also set priv...
Page 20: Port Commands
4 port commands introduction ............................................................................................................................. 4-1 set/define port ........................................................................................................................ 4-2 ...
Page 21: Introduction
Lsb4 reference manual port commands 4-1 introduction port commands are used to specify, configure and display the different port set- tings for the lsb4Õs serial console port. Set/define port set port and define port accept the following parameters: ♦ character, flow, modem configure the settings th...
Page 22: Set/define Port
Port commands lsb4 reference manual 4-2 set/define port define port functions differently than other define commands. When define port is entered from a terminal connected to the serial console port, the specified configurations will take effect and will be placed into permanent memory when the user...
Page 23: Set/define Port (Cont.)
Lsb4 reference manual port commands 4-3 set/define port (cont.) parameters character size sets the character size for the current port. Command completion when enabled, completes a keyword when a keyword is be- ing entered and the space bar is pressed. Flow control specifies the type of flow control...
Page 24: Show/monitor/list Port
Port commands lsb4 reference manual 4-4 show/monitor/list port the information displayed will depend on the port or all parameters. If neither parameter is present, information will be displayed for the port through which the lsb4 received the show/monitor/list port command. Parameters port specifie...
Page 25: Snmp Commands
5 snmp commands introduction ............................................................................................................................. 5-1 set/define snmp ................................................................................................................... 5-2 show/...
Page 26: Introduction
Lsb4 reference manual snmp commands 5-1 for an explanation of the set and de- fine commands, see page 2-1. Introduction simple network management protocol (snmp) is a network protocol used to in- terrogate the status of and specify parameters to different nodes on the local area network. Snmp comman...
Page 27: Set/define Snmp
Snmp commands lsb4 reference manual 5-2 set/define snmp set snmp and define snmp commands are used to limit the abilities of partic- ular communities to make snmp requests. Parameters community an identification provided in snmp packets that specifies a particular community. The lsb4 will respond to...
Page 28: Show/list Snmp
Lsb4 reference manual snmp commands 5-3 show/list snmp show snmp and list snmp display the snmp community names and access types. Show list snmp.
Page 29
Snmp commands lsb4 reference manual 5-4.
Page 30: Filter Commands
6 filter commands introduction ............................................................................................................................. 6-1 configuring a filter list ......................................................................................................... 6-2 set...
Page 31: Introduction
Lsb4 reference manual filter commands 6-1 if a filter list con- tains more than six or seven items, slow performance may result. One filter list may be associated with one or all ports. Introduction filters are used to permit or deny passage of data packets through the lsb4. The set filter and defin...
Page 32: Configuring A Filter List
Filter commands lsb4 reference manual 6-2 configuring a filter list to configure a filter list, the filter list must be associated with one of the lsb4Õs lan ports. The lsb4 can only have as many filter lists as it does lan ports; as it has four ports, it can support a maximum of four filter lists. ...
Page 33
Lsb4 reference manual filter commands 6-3 creating a “firewall” a firewall is one use of a filter list. Firewalls are often used to prevent all but one type of traffic (for example, traffic from a specific node) from reaching a partic- ular network segment. When traffic destined for a specific segme...
Page 34: Set/define Filter
Filter commands lsb4 reference manual 6-4 set/define filter parameters filter specifies a particular filter list. Filtr a value between 1 and 4. Filter list numbers are associated with a particular port num- ber using the set/define switch command. Append/insert position identifies a location in the...
Page 35: Set/define Filter (Cont.)
Lsb4 reference manual filter commands 6-5 set/define filter (cont.) parameters multicast permits or denies passage of data packets containing multi- cast messages. If the spanning tree algorithm and multicasts are disabled, bpdu packets will not be forwarded. Source permits or denies passage of data...
Page 36: Set/define Filter (Cont.)
Filter commands lsb4 reference manual 6-6 set/define filter (cont.) source address destination address permits or denies passage of data packets that have originated from and are destined for a specific node on the local area net- work. Entering this command once filters traffic between two nodes in...
Page 37: Set/define Filter (Cont.)
Lsb4 reference manual filter commands 6-7 set/define filter (cont.) parameters pattern two bytes (four hexadecimal characters, or 16 bits) long and defines the characters contained in each data packet. The four hexadecimal characters must be preceded by 0x. Wild- cards ( * ) may be used in this fiel...
Page 38: Set/define Filter (Cont.)
Filter commands lsb4 reference manual 6-8 set/define filter (cont.) parameters protocol identifier (cont.) for example, if the following command is entered [figure 6-8]: figure 6-8: allowing tcp packets tcp/ip protocol data packets, including the tcp's level three protocol data packets, will be perm...
Page 39: Set/define Filter (Cont.)
Lsb4 reference manual filter commands 6-9 set/define filter (cont.) protocol protocol ident – appletalk atp pap afp nbp zip rtmp arp aarp decnet igrp ip tcp smtp ftp runix sport portident dport portident icmp ospf rip udp nfs snmp rpc sport portident dport portident ipx rip sap spx moprc mopdl sna s...
Page 40: Set/define Filter (Cont.)
Filter commands lsb4 reference manual 6-10 set/define filter (cont.) parameters protocol_ident substitutes a protocol identifier for a protocol mnemonic. Protocol_ident is two bytes long; the four hexadecimal char- acters must be preceded by 0x. This protocol identification can be substituted for on...
Page 41: Show/list Filter
Lsb4 reference manual filter commands 6-11 show/list filter parameters filter displays the specified filter list. Filtr a value between 1 and 4. All displays all filter lists. If the filtr and all parameters are omit- ted, all filters will be shown or listed. Show list filter filtr all.
Page 42: Clear/purge Filter
Filter commands lsb4 reference manual 6-12 clear/purge filter parameters clear/purge clear removes one or all filters from the filter list entered us- ing the set filter command. Purge removes one or all filters from the filter list in the lsb4's permanent memory. Filter identifies a filter list to ...
Page 43: Switch Commands
7 switch commands introduction ............................................................................................................................. 7-1 set/define switch ................................................................................................................... 7-2 s...
Page 44: Introduction
Lsb4 reference manual switch commands 7-1 introduction switch commands are used to configure and display the lsb4Õs switch func- tions, including spanning tree configurations, updates to the address table, and port priority values. Set/define switch set switch and define switch accept the following ...
Page 45: Set/define Switch
Switch commands lsb4 reference manual 7-2 set/define switch parameters forward delay sets the transition delay between the lsb4's listening and learning states. Forward delay must be large enough so that (2 x (forwarddelay - 1)) is larger than the maximum age set- ting. Delay a value between 4 and 3...
Page 46: Set/define Switch (Cont.)
Lsb4 reference manual switch commands 7-3 set/define switch (cont.) parameters priority specifies the relative priority of the switch. When the span- ning tree algorithm is enabled, the switch with the lowest priority value is chosen as the root. Value a number between 0 and 32768. The higher the va...
Page 47: Set/define Switch (Cont.)
Switch commands lsb4 reference manual 7-4 set/define switch (cont.) state enables or disables the lsb4 (all lan ports) or a particular lan port. When a port state is disabled, the lsb4 will not permit the passage of data packets, but will still respond to commands. Filter associates a filter list wi...
Page 48: Show/monitor/list Switch
Lsb4 reference manual switch commands 7-5 show/monitor/list switch parameters ethernet port specifies which lsb4 port information will be displayed by the show/monitor/list switch commands. Port a value between 1 and 4 designating which port is to be dis- played. Status displays current settings as ...
Page 49
Switch commands lsb4 reference manual 7-6 show/monitor/list switch (cont.) displayed below are the results of the show/monitor switch ethernet port com- mand entered on an lsb4 [figure 7-1]: figure 7-1: show/monitor switch ethernet port output the counters are as follows: ♦ bpdus received displays t...
Page 50
Lsb4 reference manual switch commands 7-7 show/monitor/list switch (cont.) counters, cont: ♦ deferred transmissions displays the number of transmitted pack- ets deferred during transmission. ♦ excessive collisions displays the number of transmitted pack- ets that encountered at least sixteen colli- ...
Page 51
Switch commands lsb4 reference manual 7-8 show/monitor/list switch (cont.) counters, cont: ♦ packets filtered displays the number of packets received and ÒfilteredÓ (discarded) by the lsb4. These are the packets addressed to a node on the same port on which the packet was received. ♦ packets flooded...
Page 52
Lsb4 reference manual switch commands 7-9 show/monitor/list switch (cont.) counters, cont: ♦ receive queue size of the total number of available slots in the receive queue, displays the number of packets waiting to be processed. ♦ receive resource usage of the total number of receive resource ar- ea...
Page 53
Switch commands lsb4 reference manual 7-10
Page 54: Save Command
8 save command introduction ............................................................................................................................. 8-1 save ............................................................................................................................................
Page 55: Introduction
Lsb4 reference manual save command 8-1 introduction the save command is used to store current lsb4 settings in permanent memory. When a save command is entered, temporary configurations made with a corre- sponding set command will be stored in nvram. The newly-saved configura- tions will overwrite s...
Page 56: Save
Save command lsb4 reference manual 8-2 save parameters port saves the specified portÕs current settings in the lsb4Õs per- manent memory. Num a value between 1 and 4. System saves all current system configurations in the lsb4Õs perma- nent memory. Protocol saves the current ip, netware, or appletalk...
Page 57: Save (Cont.)
Lsb4 reference manual save command 8-3 save (cont.) restrictions this command requires privileged status. Examples local>> save filter 3 local>> save protocol appletalk local>> save system local>> save filter all see also set privileged, page 2-5..
Page 58
Save command lsb4 reference manual 8-4.
Page 59: Miscellaneous Commands
9 miscellaneous commands introduction ............................................................................................................................. 9-1 cls ...................................................................................................................................
Page 60: Introduction
Lsb4 reference manual miscellaneous commands 9-1 introduction the following commands are discussed in this chapter: ♦ cls: clears the terminal screen ♦ finger: displays information about users of the lsb4 or other hosts on the network ♦ help: accesses the switch help text ♦ initialize: initializes (...
Page 61: Cls
Miscellaneous commands lsb4 reference manual 9-2 cls this command will clear any information on the terminal screen and display the command prompt at the top of the screen. Finger this command is similar to the unix finger command. It will display informa- tion about different users of the lsb4 or o...
Page 62: Initialize
Lsb4 reference manual miscellaneous commands 9-3 initialize the initialize command has the same effect as turning the lsb4 off and on. Un- less define or save commands have been entered, all values and conditions spec- ified by set commands will be lost. Parameters delay minutes specifies a wait per...
Page 63: Lock
Miscellaneous commands lsb4 reference manual 9-4 lock the lock command is used to restrict access to an lsb4 session. Lockis often used when a user wishes to maintain an lsb4 session, but temporarily leave his or her terminal unattended. When issued, the lock command will prompt for a password, then...
Page 64: Logout
Lsb4 reference manual miscellaneous commands 9-5 logout logout is used to log out of an lsb4 port. If the lsb4 has been logged into from a network using one of the network ports, the network session is terminated. If it was logged into from the console port, the console settings are reloaded from no...
Page 65: Show Users
Miscellaneous commands lsb4 reference manual 9-6 show users this command will display information about all users currently logged into the lsb4. Unlock this command unlocks a previously locked port. Parameters port a value between 1 and 4 representing the port number to be unlocked. Restrictions th...
Page 66: Zero Counters
Lsb4 reference manual miscellaneous commands 9-7 zero counters this command resets the lsb4's counters. Parameters system resets the counters related to login events on the two lan ports and the serial console port. All resets the counters on all ports. Ethernet port resets the counters on a specifi...
Page 67
Miscellaneous commands lsb4 reference manual 9-8.
Page 68: Technical Support
Technical support-i 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 email at support@lantronix.Com. Lantronix 153...
Page 69: Glossary
Glossary-i glossary address table a table maintained by the lsb containing the addresses of all devic- es currently on the network. 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 address table. This e...
Page 70
Glossary lsb4 reference manual glossary-ii filter a filter controls the passage of particular packets from one network seg- ment to another. Users can specify a number of filters (called a filter list) to be used with a particular port; for example, a port can be configured to prevent all broadcast ...
Page 71
Lsb4 reference manual glossary glossary-iii rfc request for comments; a document that lists a standard method of com- pleting a particular task. Rfcs are available over the internet at no cost; for details, refer to appendix c of the lsb4 installation guide. Root a particular switch designated by th...
Page 72: Index
Index-i index a appletalk show/list protocol ................................. 3-4 appletalk zone set/define protocol command ................ 3-2 b bootparams show/monitor/list system command .... 2-4 c character size set/define port command ....................... 4-3 characteristics show/monitor/...
Page 73
Index-ii m manual conventions ..................................... 1-2 optional parameters ............................... 1-2 required parameters .............................. 1-2 user defined parameters ......................... 1-2 modem control set/define port command ....................... 4...
Page 74
Index-iii t telnet set/define system command .................. 2-2 type set/define port command ....................... 4-3.