Allied Telesis AT-8116 User manual

USER’S GUIDE
AT-8116
Fast Ethernet
Intelligent Switch
PN 613-10699-00 Rev. A
Ethernet Fast
Ethernet

Copyright ® 1998 Allied Telesyn International Corp.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn
International Corp.
Centre COM is a registered trademark of Allied Telesyn International Corp.
Ethernet is a registered trademark of Xerox Corporation. HP-UX and OpenView are registered trademarks of Hewlett-Packard
Company. Solaris and SunNet Manager are registered trademarks of Sun Microsystems, Inc. AIX and NetView are registered
trademarks of IBM Corporation. SPECTRUM is a registered trademark and SpectroGRAPH and SpectroSERVER are trademarks
of Cabletron Systems, Inc. All other product names, company names, logos or other designations mentioned herein are trademarks
or registered trademarks of their respectives owners.
Allied Telesyn International Corp. reserves the right to make changes in specifications and other information contained in this
document without prior written notice. The information provided herein is subject to change without notice. In no event shall
Allied Telesyn International Corp. be liable for any incidental, special, indirect, or consequential damages whatsoever, including
but not limited to lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesyn
International Corp. has been advised of, known, or should have known, the possibility of such damages.

i
Table of Contents
Chapter 1
Administrative Interface
.............................................................................................................................................1-1
Features ....................................................................................................................................................................................1-1
Network Management Systems ..............................................................................................................................................1-3
Accessing the SNMP Agent .......................................................................................................................................................1-3
System Requirements .................................................................................................................................................................1-3
Hardware Requirements ....................................................................................................................................................1-3
Software Requirements ......................................................................................................................................................1-4
VT100 Terminal Settings ............................................................................................................................................................1-4
Testing the Installation ...............................................................................................................................................................1-5
Accessing the Command Line Interface Remotely ..........................................................................................................1-5
Chapter 2
Command Line Interface
............................................................................................................................................2-1
Features of the Command Line Interface ............................................................................................................................2-1
Entering Commands ...................................................................................................................................................................2-2
System Commands ......................................................................................................................................................................2-4
Command Line Interface Structure .......................................................................................................................................2-5
Chapter 3
Console Commands
.....................................................................................................................................................3-1
Chapter 4
System Commands .......................................................................................................................................................4-1
Chapter 5
IP Commands
................................................................................................................................................................5-1
Chapter 6
Address Resolution Commands
................................................................................................................................6-1
Chapter 7
Ping Commands ...........................................................................................................................................................7-1

Table of Contents
ii
Chapter 8
SNMP Commands
........................................................................................................................................................ 8-1
SNMP Community String Commands ..................................................................................................................................8-1
SNMP Trap Message Commands ............................................................................................................................................8-2
Chapter 9
Switching Database Commands
............................................................................................................................... 9-1
Learning Table ...............................................................................................................................................................................9-2
Chapter 10
Virtual LAN Commands
........................................................................................................................................... 10-1
Virtual Broadcast Domains (VBC) ..........................................................................................................................................10-2
Chapter 11
Port Monitoring Commands ................................................................................................................................... 11-1
Chapter 12
Port Configuration Commands
.............................................................................................................................. 12-1
Chapter 13
Switching Statistics Commands
.............................................................................................................................. 13-1
Chapter 14
Spanning Tree Commands ....................................................................................................................................... 14-1
Chapter 15
Using an SNMP Manager
.......................................................................................................................................... 15-1
Configuring the AT-8116 SNMP Agent ...............................................................................................................................15-1
Global Setup .........................................................................................................................................................................15-1
IP Setup ..................................................................................................................................................................................15-2
SNMP Setup ..........................................................................................................................................................................15-3
Chapter 16
Software Troubleshooting
........................................................................................................................................ 16-1
Appendix A
Software Downloading
................................................................................................................................................A-1
Requirements .................................................................................................................................................................................A-1
8116 TFTP Client Download Procedure ...............................................................................................................................A-1
8118 TFTP Server Download Procedure ...............................................................................................................................A-2
Appendix B
System Defaults
............................................................................................................................................................B-1
Appendix C
Command Line Reference
..........................................................................................................................................C-1

1-1
Chapter 1
Administrative Interface
The AlliedTelesyn International AT-8116 Fast Ethernet switch
provides a cost-effective solution for Ethernet and Fast Ethernet
connectivity.With 16 dual-speed 10/100 ports,the AT-8116 switch
delivers the port density and performance required for a wide range
of bandwidth-intensive applications.The autosensing 10/100 ports
allow for compatibility with today’s network while providing a
growth path for the future.
The AT-8116 is a simple-to-use switch that provides versatile
configuration options for the network.It can be used to link hubs to
maximize performance in existing shared media LANs,aggregate
traffic from workgroup switches,and provide dedicated bandwidth
for demanding applications such as client/server and multimedia
applications.
Features
The AT-8116 has the following major features:
❑
16 dual-speed 10/100 TX ports autosensing
❑
Half/Full Duplex selectable on each port
❑
1.6Gbps High Performance Switch
❑
Full Wire Speed on All Ports
❑
Support for up to 8K MAC addresses
❑
Port-based VLANs with support for up to 16 VLANs
❑
IEEE 802.1d spanning tree
❑
Port Mirroring
❑
SNMP Management
❑
RMON

Administrative Interface
1-2
The AT-8116 contains a built-in SNMP agent running on the SNMP
Processor Board.This allows each unit to be managed from a
centralized management station via any SNMP-compliant NMS.
The SNMP agent software complies with the following standards:
❑
RFC1155-TheStructureofManagementInformation(SMI)for
TCP/IP Based Internets, May 1990
❑
RFC 1212 - The Management Information Base I (MIB I)
❑
RFC 1213 - The Management Information Base II (MIB II),
March 1991
❑
RFC 1284 - The Ethernet MIB
❑
RFC 1286 - The Bridge MIB
❑
RFC 1757 - The RMON MIB
❑
The UDP/IP stack implementation conforms to:
— RFC 1122-Requirements for Internet host-
communication layers.
— RFC 1123-Requirements for Internet host-applications
and support.
The AT-8116 also supports two private MIBs:switch.mib and
gswitch.mib.
The SNMP agent utilizesTFTP (RFC 1350),UDP/IP (RFC 768,RFC950,
RFC1071 and RFC791) as OSI layers 3 and 4 protocols,ICMP (RFC792)
and ARP (RFC826) to complete the UDP/IP protocol suite.
The UDP/IP stack implementation conforms to:RFC 1122-
Requirements for Internet hosts - communication layers.RFC
1123-Requirements for Internet hosts - application and support.

AT-8116 User’s Guide
1-3
Network Management Systems
Network management functions greatly assist in monitoring and
controlling your network.The AT-8116 can be monitored and
controlled through a generic SNMP-based NMS.The connection to
the AT-8116 may be achieved through Ethernet.
The AT-8116 can also be configured and managed through the
Command Line Interface.The process is described in detail in the
following pages.
Accessing the SNMP Agent
This section describes how to use the console services to configure
and manage the AT-8116.
Toaccesstheconsole,connectaterminaltotheAT-8116RS-232DB-9
connector.
System Requirements
Hardware
Requirements
❑
AT-8116 unit
❑
EitheraVT100terminaloraVT100terminalemulatorrunning
on a workstation or PC
❑
RS232 crossover cable with a 9-pin female D-subminiature
connector on one end and an appropriate connector on the
other end to attach to the VT terminal or VT100 terminal
emulator

Administrative Interface
1-4
Software
Requirements
If you are using a workstation,use theVT100 terminal emulation
software appropriate for your workstation.
If you are using a PC to emulate a VT100 terminal,you can use the
following software:
❑
In a DOS environment:
— MS-DOS 3.30 or later
— PROCOMM PLUS for DOS
❑
In a Windows 3.1 environment:
— Microsoft Windows 3.1 or later
— Windows Terminal or PROCOMM PLUS for Windows
❑
In Windows 95 or NT
— Hyperterminal
Note
Because of their compatibility and reliability, the software
combinationlistedabovearerecommended.Otherapplicationsmay
also provide satisfactory results.
VT100 Terminal Settings
Use the following settings when connecting theVT100 terminal or
terminal emulator to the AT-8116.
❑
Communications Setup
— 9600 (baud)
— No Parity
— 8 Data Bits, 1 Stop Bit
— No Local Echo
— VT100 Mode
❑
Terminate the setup session by pressing Ctrl-C.
For details concerning using the SNMP agent,see Chapter 15,
Using
an SNMP Manager
.

AT-8116 User’s Guide
1-5
Testing the Installation
After you have completed the installation,use the CLI ping
command to test for connectivity.See Chapter 15,“
Using an SNMP
Manager
”.
The ping command sends an echo request to the host specified in
the command line.For example,to test connectivity from the switch
to a workstation with an IP address of 192.1.1.126,use the following
command:
SYS_console>ping 192.1.1.126 2
Use CTRL-C or ping-stop to stop the ping
process
SYS_console>192.1.1.126 Alive. echo reply: id
4643, seq 1, echo-data-len 0
191.1.1.126 Alive. echo reply: id 4643, seq 2,
echo-data-len 0
PING process stopped - statistics:
ICMP echo requests: 2
ICMP echo responses: 2
PING process - press <CR> for prompt
SYS_console>
Accessing the Command Line Interface Remotely
Allcommandsworkexactlyasiftheserialinterfacewerebeingused.
Five telnet sessions may be active at any given time.This means that
after the fifth telnet session is established,all other telnet
connections will be refused until one of the current sessions is
closed.

2-1
Chapter 2
Command Line Interface
This chapter provides instructions for using the AT-8116 CLI.
Features of the Command Line Interface
The CLI provides the following:
❑
Configuration of system parameters, including the console’s
parameters
❑
Configuration of the switch’s SNMP Agent parameters
❑
Configuration of the ports’ parameters
❑
Network performance monitoring
❑
Virtual LANs operations
❑
Statistics operations
❑
Spanning Tree operations

Command Line Interface
2-2
Entering Commands
Enter commands by typing the command name followed by zero or
more parameters and pressing
<enter>.
For example,typing
<banner> <enter>
at the command prompt displays the
Administrative Interface logo.
Items typed in courier are to be typed literally,or read directly from
the screen.
Angled bracketed items are variables and represent values.For
example,
<IPaddress>
representsanIPaddress in dotted decimal
notation as 123.1.2.3.
ItemsintheTimesNewRomanfont(thisfont)appearingonalineare
hints to the user (not actually displayed on the screen).
Items in { } and separated by | represent alternatives for the
argument.
get-comm {read | write | *}
means you can type one of:
get-comm read
get-comm write
get-comm *
Ifyouenteracommandincorrectly,amessageisdisplayedindicating
the type of error that occurred.For example,typing a nonexistent
command gives the following message:
SYS_console>
pin
command <pin> not found
Ifthecommandexistsbutthenumberofparametersis incorrect,the
following message is displayed:
SYS_console> ping
too few arguments

AT-8116 User’s Guide
2-3
To get an explanation of the command’s parameters add a question
mark (?) after the command name:
SYS_console> ping ?
?
ping IP traffic generator
[arg #0] destination IP address
[arg #1] number of packets to send or 0 for
endless ping
SYS_console> ping
Note
Thecommandis reprintedaftertheprompt, andtheuserhasonlyto
add the necessary parameters. If a question mark is added after the
first parameter, then the same explanation is provided, and the
previous command, including the provided parameters, is
redisplayed.
SYS_console> ping 129.1.1.7 ?
ping IP traffic generator
[arg #0] destination IP address
[arg #1] number of packets to send or 0 for
endless ping
SYS_console> ping 129.1.1.7
The CLI provides a history of the last commands.In order to obtain
the last command in the the command history,press <!> or Ctrl-P at
the prompt .
To correct a command line you may use the following special keys
(see the help-kbd command):
❑<!> or CTRL-P- for the previous command
❑CTRL-W- o delete the previous word
❑CTRL-U- to erase the entire line

Command Line Interface
2-4
When,as a result of a command,more than one screen-full of text is
to be printed,the user may continue to scroll or stop the process.
SYS_console>system
System Commands
Table 2-1 System Commands
sys-stat show system status
get-stst-level show the selftest level
set-stst-level change the selftest level
warm-reset warm reset of the device
cold-reset cold reset of the device
get-last-err displays information about the last fatal error
init-nvram initialize NVRAM to default values
get-sw-file retrieves the SNMP Agent Software file name
set-sw-file sets the SNMP Agent Software file name - for download
get-tftp-srvr retrieves theTFTP download server IP address
set-tftp-srvr sets theTFTP download server IP address
set-tftp-mode sets theTFTP download mode
get-tftp-mode retrieves theTFTP download mode
sw-dnld software download BYTFTP
set-fg-param sets the Ethernet frame generator parameters
start-fg starts the Ethernet frame generator
stop-fg stop the Ethernet frame generator

AT-8116 User’s Guide
2-5
Finally,the user may press<?> to see the list of commands which
start with the text he has already typed,eg:User pressed <?>
SYS_console>get-c?
?
command 'get-c' not found
SYS_console>get-co?
Command Line Interface Structure
The CLI has several categories of commands:
❑Consolerelatedcommands:help,banner,consoleparameters
setup, etc.
❑System related commands: reset commands, download
commands, initialize the NVRAM with defaults, etc.
❑IP commands: parameter setup, parameter and information
display, etc.
❑SNMP agent related commands: parameter setup,
management and traps options
❑Switching Database related commands: aging time
management and Switching Database entry management
❑Virtual LAN commands
❑Port Configuration related commands
❑Switching statistics commands
❑Spanning Tree related commands
See the quick referenceattheendofthischapterforacommandlist
separated by subject.
Table 2-2 Commands Matching <get-c>
get-comm show current read or/and write community
get-con-matrix retrieves the VLAN connectivity matrix
get-colls-cnt gets the collision distribution counters per port

Command Line Interface
2-6
Typing?at the CLI prompt displays a list of all the available
command topics and a short explanation about each.Typing in one
of the names on this list will yield a list of the commands under that
topic.
SYS_console>?
Table 2-3 Commands Groups
console Console related commands
system System related commands
ip IP related commands
snmp SNMP related commands
switch-db Switching Database related commands
vlan Virtual LANs related commands
port-cfg Port Configuration related commands
statistics Switching Statistics related commands
sp-tree SpanningTree related commands

3-1
Chapter 3
Console Commands
The console commands contain a set of commands which allow the
user to configure the CLI parameters and user interface.To view the
console commands,type <console>.
help-kbd
This command lists the console function keys.
SYS_console>help-kbd
SYS_console>
Table 3-1 Console Function Keys
^U (or Escape) clear the line
^W clear the previous word
! or ^p for previous command
TAB for command completion
? help,depending on position:
in parameters - list of the parameters
in 1st column - list of the categories
# with line number - repeat command from history,for
example:#26 without line number - show history list

Console Commands
3-2
banner
The banner command will display the CentreCOM 8116 Allied
Telesyn International logo.
clear
The clear command will clear the screen and display the prompt.
login
ThelogincommandwillexittheAdministrativeInterface,butwillnot
disconnect aTelnet session.This allows the user to test a password
(or other activity) without reconnecting.
logout
The logout command will end the actual Administrative Interface
Session.Any further access will request the user to login again.
set-page
This command sets the console page:page size in lines 5...127 or 0
for no paging.
set-prompt
set-prompt <new_prompt>
The set-prompt command allows the user to set a new command
line prompt for the Administrative Interface.With the prompt
command,youcansetamoremeaningfulprompt,suchasa location
of the switch,or the name of a workgroup.The default prompt is
SYS_console> .
SYS_console> set-prompt R&D_grp>
R&D_grp> _

AT-8116 User’s Guide
3-3
set-attr-prompt
This command sets the prompt attributes.
SYS_console>set-attr-prompt <number of
option>
[arg #0] options: 0-normal,1-bold,2-
underline,4-blink,8-reverse
SYS_console>
set-attr-msg
This command sets the display message attributes.
SYS_console>set-attr-msg <number of option>
[arg #0] options: 0-normal,1-bold,2-
underline,4-blink,8-reverse
SYS_console>
set-attr-text
This command sets the text display attributes.
SYS_console>set-attr-text <number of option>
[arg #0] options: 0-normal,1-bold,2-
underline,4-blink,8-reverse
SYS_console>
set-passwd
Apassword isnotrequiredtoaccessthesystemsoftware.However,a
usernameisrequiredtologintothesystem.Ausersimply entershis/
herusernamewhen theusernamepromptappearsandif youdonot
wish to set a password at this time,you only need to press the
<enter> or <return> key twice to access the system’s software.
The set-passwd command allows a user to set a password or to
change the original one,if previously installed.The system first
prompts the user for the original (old) password.Then the system
prompts you for a new password.Then,type the same password
again for verification.At no time are any of the passwords echoed
back to the user.

Console Commands
3-4
If the user enters the old password incorrectly or fails to verify the
new password correctly,the password will not be changed.
SYS_console>set-passwd
SYS_console>
Enter old password:
Enter new password:
Enter new password again:
Error : different new passwords
If the password change succeeds,the system will respond
accordingly.
SYS_console>set-passwd
SYS_console>
Enter old password:
Enter new password:
Enter new password again:
CLI running password changed
CLI password change in the NVRAM OK