Allied Telesis AT-GS950/8 User manual

613-000375 Rev. B
Management
Software
AT-S82
User’s Guide
For the AT-GS950/8 Layer 2 Gigabit Ethernet WebSmart Switch
Version 1.1.0

Copyright ©2007 Allied Telesis, Inc.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc.
Allied Telesis is a trademark of Allied Telesis, Inc. Microsoft and Internet Explorer are registered trademarks of Microsoft
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company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective
owners.
Allied Telesis, Inc. 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 Telesis, Inc. 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 Telesis, Inc. has been advised of, known, or
should have known, the possibility of such damages.

3
Preface .............................................................................................................................................................. 7
Where to Find Web-based Guides ..................................................................................................................... 8
Contacting Allied Telesis .................................................................................................................................... 9
Online Support ............................................................................................................................................. 9
Email and Telephone Support...................................................................................................................... 9
Warranty....................................................................................................................................................... 9
Returning Products ...................................................................................................................................... 9
Sales or Corporate Information .................................................................................................................... 9
Management Software Updates................................................................................................................... 9
Chapter 1: Getting Started ............................................................................................................................ 11
Starting a Management Session ...................................................................................................................... 12
Saving Changes ............................................................................................................................................... 14
Quitting a Management Session ...................................................................................................................... 15
Chapter 2: Basic Switch Parameters ........................................................................................................... 17
Configuring the IP Address, Subnet Mask, Gateway Address, and BOOTP or DHCP .................................... 18
Disabling or Enabling Ping Blocking................................................................................................................. 20
Enabling or Disabling 802.1X Forwarding Control............................................................................................ 21
Changing the Administrator’s Password........................................................................................................... 22
Rebooting the Switch........................................................................................................................................ 23
Resetting the Switch and Retaining the IP Address ......................................................................................... 24
Returning the AT-S82 Management Software to the Factory Default Values .................................................. 25
Downloading New Firmware............................................................................................................................. 26
Chapter 3: Port Configuration ...................................................................................................................... 27
Configuring Port Parameters ............................................................................................................................ 28
Chapter 4: Trunking ...................................................................................................................................... 31
Trunking Overview............................................................................................................................................ 32
Trunking Guidelines ................................................................................................................................... 32
Trunking Algorithm ..................................................................................................................................... 32
Configuring the Trunking Algorithm .................................................................................................................. 34
Setting up the Trunk ......................................................................................................................................... 35
Chapter 5: Port Mirroring .............................................................................................................................. 37
Port Mirroring Overview.................................................................................................................................... 38
Configuring Port Mirroring ................................................................................................................................ 39
Chapter 6: VLANs .......................................................................................................................................... 41
VLAN Features ................................................................................................................................................. 42
Increased Performance.............................................................................................................................. 42
Improved Manageability ............................................................................................................................. 42
Increased Security ..................................................................................................................................... 42
VLAN Overview ................................................................................................................................................ 44
VLAN Name ............................................................................................................................................... 44
VLAN Identifier ........................................................................................................................................... 44
VLAN Port Members .................................................................................................................................. 44
Contents

Contents
4
Tagged Port Members .........................................................................................................................45
Untagged Port Members ...................................................................................................................... 45
Incoming and Outgoing Tagged and Untagged Frames ............................................................................ 45
Incoming Frames ................................................................................................................................. 45
Outgoing Frames .................................................................................................................................45
Guidelines for Creating a VLAN ................................................................................................................. 46
Working with VLANs .........................................................................................................................................47
Creating a VLAN.........................................................................................................................................47
Displaying all VLANs ..................................................................................................................................48
Modifying a VLAN.......................................................................................................................................49
Deleting a VLAN .........................................................................................................................................49
Protected Ports VLAN ....................................................................................................................................... 50
Chapter 7: Class of Service ..........................................................................................................................53
Class of Service Overview ................................................................................................................................54
Mapping Ports to Egress Queues............................................................................................................... 54
Scheduling.................................................................................................................................................. 55
Mapping Priorities to Queues............................................................................................................................57
Setting Up the Schedule ...................................................................................................................................58
Assigning Priority to Ports .................................................................................................................................59
Chapter 8: Spanning Tree Protocol (STP) ...................................................................................................61
Spanning Tree Overview ..................................................................................................................................62
Bridge Priority and the Root Bridge ............................................................................................................ 62
Path Costs and Port Costs...................................................................................................................63
Port Priority ..........................................................................................................................................65
Forwarding Delay and Topology Changes...........................................................................................65
Hello Time and Bridge Protocol Data Units (BPDUs) ..........................................................................66
Point-to-Point and Edge Ports..............................................................................................................67
Spanning Tree and VLANs......................................................................................................................... 69
Configuring Spanning Tree ...............................................................................................................................71
Configuring STP Port Settings ..........................................................................................................................74

5
Figure 1. Login Dialog Box ..................................................................................................................................................12
Figure 2. Main Page ............................................................................................................................................................13
Figure 3. Save Configuration Page .....................................................................................................................................14
Figure 4. Basic Switch Information Page.............................................................................................................................18
Figure 5. Administrator Password Page ..............................................................................................................................22
Figure 6. Reboot Page ........................................................................................................................................................23
Figure 7. Reset Page...........................................................................................................................................................24
Figure 8. Reset System Page..............................................................................................................................................25
Figure 9. Download Firmware Page ....................................................................................................................................26
Figure 10. Download Status Message.................................................................................................................................26
Figure 11. Port Configuration Page .....................................................................................................................................28
Figure 12. Trunking Algorithm Page....................................................................................................................................34
Figure 13. Port Trunking Page ............................................................................................................................................35
Figure 14. Port Trunking Configuration Page ......................................................................................................................35
Figure 15. Port Mirroring Page ............................................................................................................................................39
Figure 16. 802.1Q Static VLAN Page..................................................................................................................................47
Figure 17. VLAN Detail Page ..............................................................................................................................................47
Figure 18. Current VLANs Page..........................................................................................................................................49
Figure 19. Protected Ports VLAN Example .........................................................................................................................50
Figure 20. Protected Port Page for Figure 19......................................................................................................................50
Figure 21. Protected Port Page ...........................................................................................................................................51
Figure 22. CoS Priority to Queue Page ...............................................................................................................................57
Figure 23. Output Scheduling Page ....................................................................................................................................58
Figure 24. CoS Port Priority Assignment Page....................................................................................................................59
Figure 25. Point-to-Point Ports ............................................................................................................................................67
Figure 26. Edge Port ...........................................................................................................................................................68
Figure 27. Point-to-Point and Edge Port..............................................................................................................................68
Figure 28. VLAN Fragmentation..........................................................................................................................................69
Figure 29. Switch Spanning Tree Settings Page.................................................................................................................71
Figure 30. STP Port Settings Page .....................................................................................................................................74
Figures

Figures
6

7
Preface
This guide contains instructions on how to use the AT-S82 management
software to manage the AT-GS950/8 Smart Switch switch.
This preface contains the following sections:
“Where to Find Web-based Guides” on page 8
“Contacting Allied Telesis” on page 9

Preface
8
Where to Find Web-based Guides
The installation and user guides for all Allied Telesis products are
available in portable document format (PDF) on our web site at
www.alliedtelesis.com. You can view the documents online or download
them onto a local workstation or server.

AT-S82 Management Software User’s Guide
9
Contacting Allied Telesis
This section provides Allied Telesis contact information for technical
support as well as sales and corporate information.
Online Support You can request technical support online by accessing the Allied Telesis
Knowledge Base from the following website: www.alliedtelesis.com/
support. You can use the Knowledge Base to submit questions to our
technical support staff and review answers to previously asked questions.
Email and
Telephone
Support
For Technical Support via email or telephone, refer to the Allied Telesis
web site: www.alliedtelesis.com. Select your country from the list
displayed on the website. Then select the appropriate menu tab.
Warranty For hardware warranty information, refer to the Allied Telesis web site:
www.alliedtelesis.com/support/warranty.
Returning
Products
Products for return or repair must first be assigned a return materials
authorization (RMA) number. A product sent to Allied Telesis without an
RMA number will be returned to the sender at the sender’s expense.
To obtain an RMA number, contact the Allied Telesis Technical Support
group at our web site: www.alliedtelesis.com/support/rma. Select your
country from the list displayed on the website. Then select the appropriate
menu tab.
Sales or
Corporate
Information
You can contact Allied Telesis for sales or corporate information through
our web site: www.alliedtelesis.com. To find the contact information for
your country, select Contact Us -> Worldwide Contacts.
Management
Software Updates
New releases of management software for our managed products are
available from either of the following Internet sites:
Allied Telesis web site: www.alliedtelesis.com
Allied Telesis FTP server: ftp://ftp.alliedtelesis.com
To download new software from the Allied Telesis FTP server from your
workstation’s command prompt, you must have FTP client software.
Additionally, you must log in to the server. The user name is “anonymous”
and your email address is the password.

Preface
10

11
Chapter 1
Getting Started
This chapter provides information and instructions on how to access the
AT-S82 management software by starting a web browser management
session. This chapter contains the following sections:
“Starting a Management Session” on page 12
“Saving Changes” on page 14
“Quitting a Management Session” on page 15

Chapter 1: Getting Started
12
Starting a Management Session
You establish a local management session with the AT-GS950/8 switch by
connecting an Ethernet cable to one of the eight ports on the front panel of
the switch.
To start a management session, perform the following procedure:
1. Start a web browser.
2. In the URL field of the web browser, enter the default IP address of the
switch: 192.168.1.1
The AT-S82 management software displays the login dialog box
shown in Figure 1.
Figure 1. Login Dialog Box
3. Enter the administrator’s default name, manager.
4. Enter the administrator’s default password, friend.
Note
To change the administrator’s password, refer to “Changing the
Administrator’s Password” on page 22.

AT-S82 Management Software User’s Guide
13
The main page, which by default displays the Basic Switch Information
page, is shown in Figure 2.
Figure 2. Main Page

Chapter 1: Getting Started
14
Saving Changes
The management software applies the changes you make when you click
the Apply button on any web page. However, the management software
does not automatically save the changes you make to the configuration
file. You can save your changes to the configuration file each time that you
change a parameter, or save the changes after you are done with all your
changes and before you exit the web browser.
Note
If you do not save changes using the Save Configuration page, your
changes are lost when the switch is rebooted.
To save your configuration changes, perform the following procedure:
1. From the main menu, select Save Configuration.
The Save Configuration page is shown in Figure 3.
.
Figure 3. Save Configuration Page
2. Click Apply.

AT-S82 Management Software User’s Guide
15
Quitting a Management Session
To quit a management session, close the web browser.

Chapter 1: Getting Started
16

17
Chapter 2
Basic Switch Parameters
This chapter contains the following sections:
“Configuring the IP Address, Subnet Mask, Gateway Address, and
BOOTP or DHCP” on page 18
“Disabling or Enabling Ping Blocking” on page 20
“Enabling or Disabling 802.1X Forwarding Control” on page 21
“Changing the Administrator’s Password” on page 22
“Rebooting the Switch” on page 23
“Resetting the Switch and Retaining the IP Address” on page 24
“Returning the AT-S82 Management Software to the Factory Default
Values” on page 25
“Downloading New Firmware” on page 26

Chapter 2: Basic Switch Parameters
18
Configuring the IP Address, Subnet Mask, Gateway Address, and
BOOTP or DHCP
Caution
Allied Telesis strongly recommends that you record the MAC
address of this switch, as shown on the Basic Switch Information
Page (Figure 4) before you configure or enable the BOOTP or
DHCP options of the Get IP From parameter. After you enable
either option, contact your network administrator for the IP address
from the BOOTP or DHCP server that corresponds to the switch’s
MAC address.
This procedure explains how to assign an IP address, subnet mask, and
gateway address to the switch.
To set the switch’s IP configuration, perform the following procedure:
1. From the main menu, select Basic Switch Information.
The Basic Switch Information page is shown in Figure 4.
Figure 4. Basic Switch Information Page
2. To set the switch’s IP address, in the Get IP From field, choose one of
the following from the list:
Manual - Allows you to enter static IP address information:

AT-S82 Management Software User’s Guide
19
a. In the IP Address field, enter the IP address. The default is
192.168.1.1.
b. In the Subnet Mask field, type the subnet mask for the switch. The
default is 255.255.255.0.
c. In the Default Gateway field, type the IP address of the default
gateway. There is no default gateway assigned.
BOOTP - Enables BOOTP so that the switch gets its IP address from a
BOOTP server. When you choose this selection, the IP Address,
Subnet Mask, and Default Gateway fields are not available.
DHCP - Enables DHCP so that the switch gets its IP address from a
DHCP server. When you choose this selection, the IP Address, Subnet
Mask, and Default Gateway fields are not available.
3. Click Apply to implement your changes.
Note
For BOOTP and DHCP options: In order to save this new
configuration, you must contact the switch using its newly acquired
IP address in order to perform steps 4 and 5 below. If the switch is
rebooted or power cycled before you save the configuration, the IP
address is reset to the factory default value of 192.168.1.1 and
Manual mode.
4. To save the settings to the configuration file, from the main menu,
select Save Configuration.
The Save Configuration page is shown in Figure 3 on page 14.
5. Click Apply.

Chapter 2: Basic Switch Parameters
20
Disabling or Enabling Ping Blocking
You can allow the switch to respond to ping requests by setting the Ping
Blocking parameter. The default setting is enabled, which means that the
switch does not respond to ping requests.
To disable or enable ping blocking, perform the following procedure:
1. From the main menu, select Basic Switch Information.
The Basic Switch Information page is shown in Figure 4 on page 18.
2. For Ping Blocking, choose one of the following:
Enabled
The switch does not respond to ping requests. This is the default.
Disabled
The switch responds to ping requests. Allied Telesis recommends that
you choose this setting.
3. Click Apply to implement your changes.
4. To save the settings to the configuration file, from the main menu,
select Save Configuration.
The Save Configuration page is shown in Figure 3 on page 14.
5. Click Apply.