Allied Telesis AT-8316F/MT Guida Utente

Management SoftwareAT-S25◆User’s GuideFOR USE WITH AT-8316F/MT, AT-8316F/VF, AT-8316F/SC, AND AT-8324 FAST ETHERNET SWITCHESVERSION 1.4®PN 613-10844-0

10Document ConventionsThis guide uses several conventions that you should become familiar with before you begin to perform the procedures. NoteNotes p

100Figure 50 VLAN Configuration Window5. Select the VLAN Name field and enter a name for the new VLAN (for example, Marketing). Press <Return>.

AT-S25 Version 1.4 User’s Guide101As shown below, you can specify the ports individually or in a range or both. By entering the word “All” in this fie

1028. Select Update this VLAN.The VLAN titled Sales has now been created in the stack. The new VLAN consists of ports 1 through 7 on the master switch

AT-S25 Version 1.4 User’s Guide103Example ofCreating aTagged VLANThis procedure creates the Production VLAN on the AT-8300 stack illustrated in Figure

104The VLAN Configuration window for the Production VLAN is displayed.14. In the All Ports on VLAN field, enter the following and press <Return>

AT-S25 Version 1.4 User’s Guide105Modifying a VLANThis procedure explains how to add or delete ports from an existing VLAN. You can also change a port

106Deleting a VLANTo delete a VLAN from a stack, perform the following procedure:1. From the Main Menu, select any switch in the stack. It does not ma

AT-S25 Version 1.4 User’s Guide107Activating or Deactivating the Basic VLAN ModeThis section contains the procedure for activating or deactivating the

108Configuring Quality of Service The AT-8324 and AT-8316F Series Switches support Quality of Service (QoS) as defined in the IEEE 802.1p standard. Qo

AT-S25 Version 1.4 User’s Guide109To adjust the settings for priority queueing, perform the following procedure:1. From the Main Menu, select the swit

AT-S25 Version 1.4 User’s Guide11Where to Find Related GuidesThe Allied Telesyn web site at www.alliedtelesyn.com contains the most recent documentati

110Assigning the CPU Management Port to a VLANThis section contains the procedure for assigning the CPU management port of the master switch to a VLAN

AT-S25 Version 1.4 User’s Guide1114. In the Management Port VLAN field, specify the VID of the VLAN to which the management port is to be assigned. Pr

113Chapter 6Displaying Ethernet StatisticsThe Omega interface allows you to view a wide range of statistics that you can use in diagnosing a problem a

114Displaying Statistics for Received FramesTo display statistics for received frames at either the switch or the port level, perform the following pr

AT-S25 Version 1.4 User’s Guide115Table 5 defines the different types of received frames.Table 5 Received Ethernet FramesFrame Type DescriptionReceiv

1163. To view received frame statistics for a particular port, do either of the following:a. Select Individual port overview and then a port. The fram

AT-S25 Version 1.4 User’s Guide117You can also view an individual port’s receive statistics by selecting the Port status and configuration option form

118Displaying Statistics for Transmitted FramesTo display statistics for transmitted frames at both the switch and port level, perform the following p

AT-S25 Version 1.4 User’s Guide119Table 6 defines the statistics. 4. To view statistics for a particular port, do either of the following:a. Select In

12Contacting Allied TelesynYou can contact Allied Telesyn technical support by telephone, fax and e-mail. You can also contact technical support onlin

120Displaying RMON Statistics for a SwitchTo display the RMON statistics for a switch, perform the following steps:1. From the Main Menu, select the s

AT-S25 Version 1.4 User’s Guide121Displaying RMON Statistics for a PortTo display RMON statistics for a specific port, perform the following procedure

122Resetting the Statistics CountersYou reset statistics counters because:❑ The counters no longer reflect the current information.For example, disabl

AT-S25 Version 1.4 User’s Guide123Interpreting the GraphsThe statistics graphs show the types of received and transmitted frames since the last time t

125Chapter 7Configuring the Omega InterfaceThis chapter describes the security features of the Omega interface. These features allow you to configure

126Creating an Omega Password To prevent unauthorized individuals from accessing the Omega interface and altering a stack’s configuration settings, yo

AT-S25 Version 1.2 User’s Guide127The Omega Options window in Figure 60 is displayed.Figure 60 Omega Options Window3. Enter a new password for the Om

128Specifying a Timeout ValueSpecifying a timeout value is a way to prevent unauthorized individuals from using the Omega interface in the event you f

AT-S25 Version 1.2 User’s Guide129Enabling and Disabling the Access MethodsAs explained in Chapter 1, you can access the Omega interface three differe

AT-S25 Version 1.4 User’s Guide13Returning ProductsProducts for return or repair must first be assigned a Return Materials Authorization (RMA) number.

131Chapter 8Upgrading Switch Software and Configuration FilesThis chapter contains the following procedures:❑ Upgrading the Stack Software on page 132

132Upgrading the Stack SoftwareAllied Telesyn periodically updates and revises the AT-S25 software for your AT-8300 Series switches. The latest versio

AT-S25 Version 1.2 User’s Guide133Using XModemto Upgrade theStack SoftwareOmega supports software upgrades to the switch using XModem. It is assumed t

1343. Immediately press any key when you see the following prompt:Hit any key to run diagnostics or to reload system software. 4. Select XModem softwa

AT-S25 Version 1.2 User’s Guide135Using Omega to Upgrade Additional StacksOnce you have upgrade the software on one stack in the network, you can use

136Repeat this procedure to download software to another stack on the network.DownloadingSoftware to AllSwitchesTo download a new version of the switc

AT-S25 Version 1.2 User’s Guide137Uploading and Downloading System Configuration FilesThe switch configuration information can also be downloaded and

139Appendix A Introduction to Virtual LANsA virtual LAN (VLAN) is a group of end nodes that function as if they are a part of the same LAN segment. A

14FTP ServerIf you need a new version of management software for an Allied Telesyn device and you know the file name of the program, you can download

Introduction to Virtual LANs140The AT-8324 and AT-8316F Series Switches support three types of VLANs:❑ Port-based VLANs❑ Tagged VLANs❑ Basic VLAN Mode

AT-S25 Version 1.4 User’s Guide141Port-based VLANA port-based VLAN is a group of ports on an AT-8324 or AT-8316F Series switch that have been grouped

Introduction to Virtual LANs142You can assign this number manually or allow the AT-S25 software to do it automatically. The range of the VID varies de

AT-S25 Version 1.4 User’s Guide143General Rules toCreating a Port-based VLANBelow is a summary of the rules to observe when creating a port-based VLAN

Introduction to Virtual LANs144Port-based VLANExampleFigure 61 is an example of two port-based VLANs that span an AT-8300 Series stack and one AT-8224

AT-S25 Version 1.4 User’s Guide145The table below lists the ports assignments for the Sales and Production VLANs:Each VLAN is briefly summarized below

Introduction to Virtual LANs146Drawbacks toPort-basedVLANsThere are several drawbacks to port-based VLANs:❑ It is not easy to share network resources,

AT-S25 Version 1.4 User’s Guide147Tagged VLANThe second type of VLAN is referred to as a tagged VLAN. With a tagged VLAN, VLAN membership is determine

Introduction to Virtual LANs148Parts of a TaggedVLANThe parts of a tagged VLAN are much the same as those for a port-based VLAN. They are:❑ VLAN Name❑

AT-S25 Version 1.4 User’s Guide149General Rules toCreating aTagged VLANBelow is a summary of the rules to observe when creating a tagged VLAN.❑ Each t

AT-S25 Version 1.4 User’s Guide15For Sales or Corporate InformationAllied Telesyn International, Corp.19800 North Creek Parkway, Suite 200Bothell, WA

Introduction to Virtual LANs150Tagged VLANExampleFigure 62 is an example of a network that uses tagged ports in two tagged VLANs to share network devi

AT-S25 Version 1.4 User’s Guide151The port assignments for the VLANs are as follows:This configuration is similar to the port-based VLAN example earli

Introduction to Virtual LANs152Basic VLAN ModeThe third type of VLAN system support by the AT-8316F Series and AT-8324 Switches is referred to as the

153Appendix B AT-S25 Default SettingsThis appendix lists the AT-S25 Version 1.4 factory default settings.Settings DefaultIP Address 0.0.0.0Subnet Mask

AT-S25 Default Settings154Omega Omega Password No passwordOmega Time Out Value 5 minutesLocal Access EnabledRemote Access (Telnet or SNMP) EnabledWeb

155Appendix CSpanning Tree Protocol ConceptsThis appendix provides a brief explanation of the Spanning Tree Protocol (STP) as implemented by Allied Te

156Spanning Tree Protocol FeaturesThe switches implement the following STP features:❑ Compensate automatically for the failure, removal, or addition o

AT-S25 Version 1.2 User’s Guide157Spanning Tree Protocol ParametersSeveral configuration parameters control the operation of the Spanning Tree Protoco

158Spanning Tree Protocol OperationWhen STP is enabled for the first time, or when the network topology changes due to a failure, the addition, or rem

159Appendix DSupported PlatformsTable 8 lists the Allied Telesyn Fast Ethernet switches that are supported by the AT-S25 Version 1.2 software.Table 9

16Tell Us What You ThinkIf you have any comments or suggestions on how we might improve this or other Allied Telesyn documents, please fill out the Se

Supported Platforms160AT-A18 4 10/100Base-TX RJ-45 100 m (328 ft)AT-A19 2 100Base-FX MT-RJ 2 km (1.25 mi)AT-A22/SX 1 1000Base-SX SC 550 m (1,804 ft)AT

161Index(Items in italic are menu selections.)AActivity monitor, 60activity monitor, 60Add MAC Address, 88Add new table entry, 99adding static MAC add

Index162STP parameters, 46STP port parameters, 43switch IP parameters, 38Connect to remote system, 31connecting to remote stack, 31conventions, used i

AT-S25 Version 1.4 User’s Guide163Llate collisions, 119local Omega sessionenabling or disabling, 129quitting, 23starting, 19long frame, 115MMAC addres

Index164Pparity, 57partitioning a port, 67passwordConfig Download, 42, 137download, 41Omega interface, 126Per port static MAC addresses, 88, 90Ping a

AT-S25 Version 1.4 User’s Guide165reassigning default settings, 53resetting, 51upgrading AT-S25 software, 132Stack ID setting, 20, 27starting Omega se

17Chapter 1Getting StartedThis chapter provides an overview of the Omega management interface and contains the procedures for starting a management se

18OverviewThe Omega management interface is a standard part of the AT-S25 management software. This menu-oriented interface simplifies the task of man

AT-S25 Version 1.4 User’s Guide19Starting a Local Omega SessionThis section contains the procedure for starting a local Omega session. This type of ma

Copyright  2001 Allied Telesyn International, Corp. 960 Stewart Drive Suite B, Sunnyvale, CA 94085 USAAll rights reserved. No part of this publicatio

20Omega MainMenuFigure 1 illustrates an example of the Omega Main Menu. Figure 1 Omega Main Menu from a Local SessionThe Main Menu is divided into tw

AT-S25 Version 1.4 User’s Guide21NoteThe master switch of the stack has the number 1. All other switches are slave switches. When instructed by this m

22Table 2 explains how to move through and select menu selections if you are using a generic (dumb) terminal.Activated options in menus are preceded b

AT-S25 Version 1.4 User’s Guide23Quitting from aLocal SessionTo quit a local Omega session, select Quit from the Omega Main Menu. You should always be

24Starting an Omega Session from a Web BrowserThis section explains how to start an Omega session from a web browser. NoteAn AT-8300 stack must have a

AT-S25 Version 1.4 User’s Guide253. If prompted for a user name and password, enter “admin” for the user name and enter the Omega password in the Pass

26Managed SwitchAt the top of the window is an image of the switch that you are currently managing. This will be an AT-8316F or AT-8324 switch. (The d

AT-S25 Version 1.4 User’s Guide27Most of the procedures in this guide start by having you select the switch in the stack on which you want to perform

28Web LinksThe left portion of the window contains links that take you automatically to relevant web pages at the Allied Telesyn web site.The Online M

AT-S25 Version 1.4 User’s Guide29Starting a Telnet Management SessionTo start a Telnet management session, specify the IP address of the AT-8300 Serie

3Table of ContentsPreface ...

30Starting an SNMP Management SessionThe final method for managing an AT-8300 Stack from a network management station is by using an SNMP management p

AT-S25 Version 1.4 User’s Guide31Connecting to a Remote StackIf you are managing a stack locally (that is, through the RS232 port on the master switch

32Menu TreeTable 3 lists the menu options in the Omega interface. The table includes a brief function of each selection and the page number of the pro

AT-S25 Version 1.4 User’s Guide33Connect to a remote system31 Enables you to connect to and manage another stack while running a local management sess

34Traffic/Port MirroringEnable 76 Enables the port mirroring feature on a switch.Disable 78 Disables the port mirroring feature on a switch.Virtual LA

AT-S25 Version 1.4 User’s Guide35Clear static MAC table91 Clears all entries from the static MAC address table.Table 3 Omega Menu Tree (continued)Mai

37Chapter 2Managing a StackThe procedures in this chapter show you how to activate and configure many of an AT-8300 stack’s parameters. The procedures

38Configuring IP ParametersIf the AT-8300 stack is in a TCP/IP network and you want to manage the stack remotely with a Telnet utility or a web browse

AT-S25 Version 1.4 User’s Guide39To set the IP parameters for a stack, perform the following procedure:1. From the Main Menu, select any switch in the

Table of Contents4Chapter 2Managing a Stack ...

403. Select IP Parameters.The IP Parameters window in Figure 8 is displayed.Figure 8 IP Parameters Window

AT-S25 Version 1.4 User’s Guide414. Enter or change the parameters as desired. Changes to a parameter take effect immediately on the stack.The paramet

42This password is used as the destination filename when you are using TFTP to update the firmware. This password is different from the Omega password

AT-S25 Version 1.4 User’s Guide43Configuring Spanning Tree Protocol ParametersThe Spanning Tree Protocol (STP) prevents data loops when multiple or re

44The Bridging menu in Figure 9 is displayed.Figure 9 Bridging Menu3. Select Port spanning tree configuration.The Port Parameters for the Spanning Tr

AT-S25 Version 1.4 User’s Guide454. To enable or disable STP for all the ports on the switch, select either Enable Spanning Tree for all Ports or Disa

467. Change the priority and port cost parameters for the ports, as desired. The parameters are defined below:PriorityThis parameter is used as a tie

AT-S25 Version 1.4 User’s Guide47The Spanning Tree Parameters window in Figure 13 is displayed.Figure 13 Spanning Tree Parameters Window4. Adjust the

48Hello TimeBridges use this parameter to determine the time interval between generating and sending configuration messages. This parameter can be fro

AT-S25 Version 1.4 User’s Guide49Enabling or Disabling IGMP SnoopingAn AT-8300 stack supports the Internet Group Management Protocol (IGMP) snooping f

AT-S25 Version 1.4 User’s Guide5Chapter 6Displaying Ethernet Statistics ...

50Naming a StackThis procedure assigns a name to a stack. The name is displayed in all the Omega windows when you manage the stack.To assign a name to

AT-S25 Version 1.4 User’s Guide51Resetting a StackYou might occasionally need to reset the stack. For example, you might need to reset a stack to fix

522. From the Main Menu, select Administration.The Administration menu in Figure 16 is displayed.Figure 16 Administration menuNoteIf you are running

AT-S25 Version 1.4 User’s Guide53Reactivating the Default Settings on a StackThis procedure explains how to reset the stack settings to the factory de

545. Immediately press any key when you see the following prompt:Hit any key to run diagnostics or to reload system software. A menu is displayed.6. S

AT-S25 Version 1.4 User’s Guide55Configuring the RS232 Port on the Master SwitchThe default settings for the RS232 port on the front panel of the Ethe

56The Terminal Configuration window shown in Figure 17 is displayed.Figure 17 Terminal Configuration WindowIf you are running the Omega session from

AT-S25 Version 1.4 User’s Guide571 stop bit2 stop bitsThese two selections are used to specify the number of stop bits. The default is 1 stop bit.No p

58Running DiagnosticsThe Omega interface has an option for running diagnostic self-tests on the switches in a stack. The program reports on the operat

AT-S25 Version 1.4 User’s Guide59The tests take only a second or two to complete. The results are displayed in the Diagnostics window. An example of t

60Displaying the Activity MonitorThe Activity Monitor is useful in monitoring the status of a ping command or in determining the status of a software

AT-S25 Version 1.4 User’s Guide61Pinging a DeviceThe ping command allows you to test if an end system can be reached by sending it an Internet Control

62The activity monitor reports the results of the ping command. Figure 21 is an example.Figure 21 Ping Results ExamplePerforming a ping command from

63Chapter 3Configuring the PortsThe procedures in this chapter allow you to view and change the parameter settings for the individual ports on a switc

64Displaying Port StatusThe Port Status window displays the current operating status of all the ports on a switch in a stack, including any expansion

AT-S25 Version 1.4 User’s Guide65The Port Status window contains the following information:PortThis column displays the number and name of each port.

66Configuring Port ParametersThis section contains the procedure for configuring the parameters for the individual ports on a switch. To view and conf

AT-S25 Version 1.4 User’s Guide67If you are running the Omega program from a web browser, you can display this window by clicking on a port in the gra

68If the port is on an AT-8324 switch and you select the full-duplex or half-duplex setting rather than the default setting of auto-negotiate, prompts

AT-S25 Version 1.4 User’s Guide69Port nameThe port name field is used to assign a name to the port. Naming ports can make it easier for you to identif

7PrefaceThis guide contains instructions on how to use the AT-S25 Fast Ethernet Switch software and the Omega management interface to configure and ma

70Configuring Port TrunksPort trunking is an economical way for you to increase the bandwidth between an AT-8300 Series switch and another network dev

AT-S25 Version 1.4 User’s Guide71Guideline 3: Using Ports from the Same GroupThe ports on the AT-8300 Series switches are divided into groups. The por

72The ports of a port trunk must be members of the same group. You cannot use ports from different groups. For example, you could use ports 4 and 5 on

AT-S25 Version 1.4 User’s Guide73Guideline 8: Creating Port Trunks on Expansion ModulesThe ports on some expansion modules can be grouped together to

744. Select the port group in which to create the port trunk and enter the port numbers for the trunk. You can use either of the following formats to

AT-S25 Version 1.4 User’s Guide75Deleting a PortTrunkTo delete a port trunk from a switch, perform the following procedure:1. From the Main Menu, sele

76Configuring a Port MirrorPort mirroring allows you to monitor the traffic on a port by having both the receive and transmit traffic on a port copied

AT-S25 Version 1.4 User’s Guide773. Select Enabled.The prompts in Figure 31 are displayed.Figure 31 Source and Destination Port Mirror Prompts4. Sele

78Disabling PortMirroringTo disable port mirroring on a switch, perform the following procedure:1. From the Main Menu, select the switch where port mo

AT-S25 Version 1.4 User’s Guide79Configuring Port SecurityThe Fast Ethernet switch has a port security feature that can be used to enhance network sec

8❑ AT-A24/SX 1000Base-SX (MT-RJ) Expansion Module❑ AT-A24/LX 1000Base-LX (MT-RJ) Expansion ModuleRefer to Appendix C, Supported Platforms, for additio

80SecureThis selection activates port security. With this option selected, the switch will continue to learn MAC addresses for each port up to a user-

81Chapter 4Configuring the MAC Address Table This chapter describes the MAC address table and the static MAC address table. The chapter explains how t

82MAC Address TableThe MAC address table (also referred to as the forwarding table) is a snapshot of source MAC addresses that a switch has learned an

AT-S25 Version 1.4 User’s Guide83Displaying theMAC AddressTableTo display the MAC address table for a switch, perform the following procedure: 1. From

84The table lists each MAC address that the stack has learned, the number or name of the port on which the MAC address was detected, and the VLAN to w

AT-S25 Version 1.4 User’s Guide855. Return to the Main Menu.Displaying thePort Number of aMAC AddressThe Omega interface allows you to determine the p

86Changing theAging Time of theMAC AddressTableIf a switch in a stack detects a packet with a new source MAC address, the switch stores the MAC addres

AT-S25 Version 1.4 User’s Guide87Static MAC Address TableThe static MAC table contains a list of the MAC addresses that have been entered manually. Yo

88Adding Addressesto the Static MACAddress TableTo add MAC addresses to the static MAC address table, perform the following procedure:1. Compile a lis

AT-S25 Version 1.4 User’s Guide89The window in Figure 43 is displayed. You use this window to specify the MAC address of the device you want to allow

AT-S25 Version 1.4 User’s Guide9How This Guide is OrganizedThis guide contains the following chapters and appendices:Chapter 1, Getting Started, expla

90DeletingAddresses fromthe Static MACAddress TableTo delete addresses from the static MAC address table for a port, perform the following procedure:1

AT-S25 Version 1.4 User’s Guide91Clearing theStatic MACAddress TableTo clear all addresses from the static MAC address for a switch in a stack, perfor

92Multicast AddressesA multicast is a special form of broadcast where copies of a packet are delivered to a specific group of end stations. This diffe

AT-S25 Version 1.4 User’s Guide934. Select Add MAC address.The Adding a Multicast Address window shown in Figure 46 is displayed.Figure 46 Adding a M

94Omega confirms a successful operation with the message MAC address added and the MAC address.8. Return to the Main Menu.Changing aMulticast PortAssi

AT-S25 Version 1.4 User’s Guide955. In the VLAN Name field, enter the name of the VLAN from which the multicast address is to be deleted.6. In the MAC

97Chapter 5Configuring Virtual LANs and Quality of ServiceThis chapter contains the procedures for creating and modifying VLANs. It also explains the

98Creating a New VLANThis section contains the procedure for creating a new VLAN in a stack. The procedure explains how to assign a name to the VLAN a

AT-S25 Version 1.4 User’s Guide993. Select Virtual LAN definitions.The program displays the VLANs window. This window lists the VLANs currently existi