3com 1100 User Manual

®http://www.3com.com/SuperStack® II Switch Management GuideFor units in the SuperStack II Switch 1100/3300 and 610/630 FamilyManagement Software Versi

8MULTICAST FILTERINGWhat is a Multicast? 190What is Multicast Filtering? 190Multicast Filtering and Your Switch 191IEEE 802.1p Multicast Filtering 191

100 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACE To enter multiple commands:At the prompt, enter each command in succession. For example, to dis

A Quick Guide to the Commands 101A Quick Guide to the CommandsTable 8 describes the commands that are available in the command line interface.Tab le 8

102 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEbridge port vltModeEnables or disables VLT tagging on a port on the current Switch unit.bridge s

A Quick Guide to the Commands 103feature analyzer displayDisplays information about the roving analysis port configured in the stack.feature analyzer

104 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEsnmp getPerforms an SNMP GET command, that allows you to retrieve values of SNMP objects from th

Displaying and Changing Bridging/VLANs Information 105Displaying and Changing Bridging/VLANs InformationYou can display and change the bridging functi

106 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACETo display the statistical information:1At the Top-level menu, enter:bridge display2The bridge i

Displaying and Changing Bridging/VLANs Information 107 maxAge — Displays the maximum age in seconds at which the stored configuration message informat

108 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEEnabling andDisabling Router PortAuto-DiscoveryYou can enable or disable router port auto-discov

Displaying and Changing Bridging/VLANs Information 1092The router port information for all Switch units in the stack is displayed in ascending unit an

IV Problem Solving 11PROBLEM SOLVINGSolving Web Interface Problems 214Solving Command Line Interface Problems 216Solving SNMP Management Software Prob

110 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEAdding a StaticallyConfigured Addressto a Switch DatabaseYou can add a statically configured add

Displaying and Changing Bridging/VLANs Information 111Displaying MACAddresses for a PortYou can display a list of MAC addresses associated with a sele

112 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACE2Enter the number of a port on the Switch unit. If the port selected is working in VLT mode the

Displaying and Changing Bridging/VLANs Information 1132Enter the number of the port to be enabled or disabled.The following prompt is displayed:Enter

114 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACE Blocking - equivalent to STP blocking state Listening - equivalent to STP listening state Learn

Displaying and Changing Bridging/VLANs Information 115Setting the BridgeSpanning Tree HelloTimerYou can set the bridge hello timer spanning tree param

116 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEEnabling andDisabling SpanningTree on a BridgeYou can enable or disable spanning tree on a bridg

Displaying and Changing Bridging/VLANs Information 117The following prompt is displayed:Enter VLAN ID (2-4094) [3]:2Enter the number of the VLAN ID th

118 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEThe following prompt is displayed:Select VLAN ID (1-4094) [1]:2Enter the VLAN ID that you wish t

Displaying and Changing Bridging/VLANs Information 119Removing a Port froma VLANYou can remove a single port from a VLAN, or remove all ports on the c

120 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEDisplaying and Changing Port InformationYou can display and change information about the ports o

Displaying and Changing Port Information 121Specifying the Speedand Duplex ModeYou can specify the speed and duplex mode of Ethernet ports on the Swit

122 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACE If auto-negotiation is enabled on a 10BASE-T port, the duplex mode of the link is automatically

Displaying and Changing Port Information 123Enabling andDisabling FlowControlIEEE 802.3x flow control prevents any packet loss that may occur on conge

124 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEFigure 29 Ethernet StatisticsThe following statistical information is displayed:Received Stats

Displaying and Changing Port Information 125Transmitted Stats Unicast Packets — Displays the number of packets with a single destination address that

126 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEPacket Size AnalysisDisplays the number of packets seen by the port that had a length which was

Displaying and Changing System Feature Information 127Displaying and Changing System Feature InformationYou can display and change system feature info

128 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEThe roving analysis port information is displayed as shown in the example below.Removing a Rovin

Displaying and Changing System Feature Information 129Stopping DataMonitoringYou can stop data monitoring by the roving analysis port and remove the m

ABOUT THIS GUIDEThis guide provides all the information you need to manage units in the SuperStack®II Switch 1100/3300 and 610/630 family with managem

130 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACESetting Up a ResilientLinkYou can set up resilient links on the Switch units within the stack us

Displaying and Changing System Feature Information 131Removing a ResilientLinkYou can remove resilient links from the Switch units within the stack us

132 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACE3Enter the port number that you wish to add to the trunk. (The choice of port numbers reflects s

Displaying and Changing IP-related Information 133Displaying SummaryTrunk InformationYou can display summary trunk information about all trunks suppor

134 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACETo specify the IP and SLIP information:1At the Top-level menu, enter:ip interface defineThe foll

Displaying and Changing IP-related Information 135Displaying IP and SLIPInformationYou can display IP and SLIP information for the current Switch unit

136 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEPinging OtherDevicesThe PING feature allows you to send out a PING request to test whether devic

Displaying and Changing SNMP-related Information 137Displaying and Changing SNMP-related InformationYou can display and change SNMP-related informatio

138 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACE2Enter the community string of the trap destination device.The following prompt is displayed:Ent

Displaying and Changing SNMP-related Information 139Removing TrapDestination DetailsYou can remove the details of a current trap destination device us

14 ABOUT THIS GUIDETab le 2 Text ConventionsConvention DescriptionScreen displaysThis typeface represents information as it appears on the screen.Sy

140 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEThe following prompt is displayed:Enter object-identifier:2Enter the identifier of an SNMP objec

Displaying and Changing Stack Information 141Displaying and Changing Stack InformationYou can display and change information about the Switch units in

142 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEYou can have up to four Switch units in a stack: If the stack contains one unit, that unit is un

Displaying and Changing Stack Information 143Displaying SwitchAdministrationDetailsYou can display the administration details for the current Switch u

144 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEinformation about assigning new contact details, see “Specifying Stack Administration Details” o

Displaying and Changing Stack Information 145To display the information: From the Top-level menu, enter:system inventoryThe summary information is dis

146 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEConfiguringIntelligent ModulesYou can configure intelligent modules such as the Switch Layer 3 M

Displaying and Changing Stack Information 1472Enter enable or disable.Changing YourPasswordYou can change the password for the current user using the

148 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEEnter the access level (monitor,manager,security) [security]:3Enter an access level for the new

Displaying and Changing Stack Information 1492Enter the name of the user to be modified.The following prompt is displayed:Enter the password:3Enter a

Related Documentation 15Related DocumentationIn addition to this guide, each document set in the Switch 1100/3300 and 610/630 family includes the foll

150 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEModifying AccessRightsYou can modify access rights for the access levels in the stack using the

Displaying and Changing Stack Information 151 Users cannot access the stack over the network using the web interface. Users cannot access the Switch u

152 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEThe stack takes about 10 seconds to reset. While the stack is resetting, you cannot communicate

Displaying and Changing Stack Information 153UpgradingManagementSoftwareYou can upgrade the management software of all Switch units in the stack using

154 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACE

IIIMANAGEMENT REFERENCEChapter 5 Port TrunksChapter 6 Virtual LANs (VLANs)Chapter 7 FastIPChapter 8 Multicast FilteringChapter 9 Spanning Tree Protoco

5PORT TRUNKSPort trunks are connections that allow devices to communicate using up to four links in parallel. This chapter explains more about port tr

158 CHAPTER 5: PORT TRUNKSWhat are Port Trunks?Port trunks are connections that allow devices to communicate using up to four links in parallel. These

Placing Ports in a Port Trunk 159When setting up a port trunk, note that: The ports at both ends of a connection must be configured as trunk ports. Th

16 ABOUT THIS GUIDEDocumentation Comments Your suggestions are very important to us. They will help make our documentation more useful to you. Please

160 CHAPTER 5: PORT TRUNKSPort Trunk ExampleThe example shown in Figure 31 illustrates an 800Mbps port trunk between two Switch units.Figure 31 An 8

Port Trunk Example 1612Prepare ports 1, 3, 5 and 7 on the lower Switch for port trunking:aUse the web interface to ensure that the ports have an ident

162 CHAPTER 5: PORT TRUNKS

6VIRTUAL LANS (VLANS)Setting up Virtual Local Area Networks (VLANs) on your Switch reduces the time and effort required by many network administration

164 CHAPTER 6: VIRTUAL LANS (VLANS)What are VLANs?A VLAN is a flexible group of devices that can be located anywhere in a network, but they communicat

VLANs and Your Switch 165VLANs and Your SwitchYour Switch provides the following VLAN features: Support for up to 16 VLANs using the IEEE 802.1Q stand

166 CHAPTER 6: VIRTUAL LANS (VLANS)Defining New VLANsIf you want to move a port from the Default VLAN to another VLAN, you must first define informati

VLANs and Your Switch 167To create an 802.1Q tagged link:1Ensure that the device at the other end of the link uses the same 802.1Q tags as your Switch

168 CHAPTER 6: VIRTUAL LANS (VLANS)The system works as follows:1The configured 802.1Q endstation sends out a packet with a known multicast address to

VLANs and Your Switch 169Figure 32 Forwarding unknown 802.1Q tags

IGETTING STARTED WITH MANAGEMENTChapter 1 SuperStack II Switch Management SoftwareChapter 2 Setting Up for Management

170 CHAPTER 6: VIRTUAL LANS (VLANS)Connecting VLANs toOther VLANsIf the devices placed in a VLAN need to talk to devices in a different VLAN, each VLA

VLAN Configuration for Beginners 171VLAN Configuration for BeginnersThis section contains examples of simple VLAN configurations. It describes how to

172 CHAPTER 6: VIRTUAL LANS (VLANS)To set up the configuration shown in Figure 33:1 Configure the VLANs Use the VLAN Setup page of the web interface t

VLAN Configuration for Beginners 173Figure 34 Simple example: Untagged connections using hubs

174 CHAPTER 6: VIRTUAL LANS (VLANS)To set up the configuration shown in Figure 34:1 Configure the VLANsUse the VLAN Setup page of the web interface to

VLAN Configuration for Beginners 175Figure 35 Simple example: 802.1Q tagged connectionsTo set up the configuration shown in Figure 35:1 Configure th

176 CHAPTER 6: VIRTUAL LANS (VLANS)3 Add tagged port 26 on Switch 1Use the VLAN Setup page of the web interface to assign port 26 on Switch 1 to both

VLAN Configuration - Advanced Examples 177VLAN Configuration - Advanced ExamplesThe examples below describe how you can extend the functionality of si

178 CHAPTER 6: VIRTUAL LANS (VLANS)To set up the configuration shown in Figure 36:1Configure the endstations attached to the left Switch 1100 so that

VLAN Configuration - Advanced Examples 179bUse the VLAN Setup page of the web interface to place ports 4 and 7 in VLANs 1 and 2 using 802.1Q tagging.c

180 CHAPTER 6: VIRTUAL LANS (VLANS)

7FASTIPFastIP reduces the load on routing devices when VLANs are implemented on your network.This chapter explains more about the concept of FastIP an

182 CHAPTER 7: FASTIPWhat is FastIP?FastIP is a system that allows you to use the IEEE 802.1Q VLAN standard to reduce the load on routing devices when

An Example 1835Endstation B sends an NHRP packet with its own details back to endstation A. This packet, however, is sent directly through the Switch

184 CHAPTER 7: FASTIPFigure 38 Network without FastIPFigure 39 Endstation A sends an NHRP packet to endstation B

An Example 185Figure 40 Endstation B sends an NHRP packet to endstation AFigure 41 Endstation A sends data packets to endstation B

186 CHAPTER 7: FASTIPFastIP and the Switch DatabaseBy default, the Switch Database of a Switch is divided by VLAN — each VLAN has an independent area

Enabling FastIP 187When FastIP is used by the Switch, the Switch Database can no longer be divided by VLAN — it must be shared by all the VLANs. Altho

188 CHAPTER 7: FASTIP

8MULTICAST FILTERINGSetting up multicast filtering improves the performance of networks that carry multicast traffic.This chapter explains multicasts,

1SUPERSTACKII SWITCH MANAGEMENT SOFTWAREThis chapter contains introductory information about the SuperStack® II Switch management software and how it

190 CHAPTER 8: MULTICAST FILTERINGWhat is a Multicast?A multicast is a packet that is sent to a subset of endstations in a LAN, or VLAN, that belong t

Multicast Filtering and Your Switch 191Multicast Filtering and Your SwitchYour Switch provides automatic filtering support for two multicast systems:

192 CHAPTER 8: MULTICAST FILTERINGIGMP MulticastFilteringIGMP is the system that all IP-supporting network devices use to register endstations with mu

9SPANNING TREE PROTOCOLUsing the Spanning Tree Protocol makes your network more resilient to link failure and also provides a protection from loops —

194 CHAPTER 9: SPANNING TREE PROTOCOLWhat is STP?Using the Spanning Tree Protocol (STP) makes your network more resilient to link failure and also pro

What is STP? 195Figure 46 Traffic flowing through Bridges C and AFigure 47 Traffic flowing through Bridge BSTP determines which is the most effici

196 CHAPTER 9: SPANNING TREE PROTOCOLHow STP WorksSTP RequirementsBefore it can configure the network, the STP system requires the following: Communic

How STP Works 197STP CalculationThe first stage in the STP process is the calculation stage. During this stage, each bridge on the network transmits B

198 CHAPTER 9: SPANNING TREE PROTOCOLAn ExampleFigure 48 shows a LAN that has STP enabled. The LAN has three segments, and each segment is connected u

How STP Works 199 Bridge A has the lowest Bridge Identifier in the network, and has therefore been selected as the Root Bridge. Because Bridge A is t

3Com Corporation5400 Bayfront Plaza Santa Clara, California 95052-8145Copyright © 2000, 3Com Technologies. All rights reserved. No part of this docume

20 CHAPTER 1: SUPERSTACKII SWITCH MANAGEMENT SOFTWAREWhat is Management Software?Your Switch contains software that allows you to change and monitor t

200 CHAPTER 9: SPANNING TREE PROTOCOLFigure 49 STP configurations

Using STP on a Network with Multiple VLANs 201Using STP on a Network with Multiple VLANsYour Switch does not take into account VLANs when it calculate

202 CHAPTER 9: SPANNING TREE PROTOCOLConnecting to STP Systems on Legacy Switch UnitsIf you are connecting your Switch to legacy units that support ST

10RMONUsing the RMON (Remote Monitoring) capabilities of a Switch allows network administrators to improve their efficiency and reduce the load on the

204 CHAPTER 10: RMONWhat is RMON?RMON is the common abbreviation for Remote Monitoring, a system defined by the IETF that allows you to monitor the tr

What is RMON? 205HostsThe Hosts group specifies a table of traffic and error statistics for each host (endstation) on a LAN segment or VLAN. Statistic

206 CHAPTER 10: RMONBenefits of RMONUsing the RMON features of your Switch has three main advantages: It improves your efficiencyUsing RMON probes all

RMON and Your Switch 207RMON and Your SwitchYour Switch contains an RMON probe in its management software. Table 10 details the RMON support provided

208 CHAPTER 10: RMONsessions, the forwarding performance of the Switch is not affected but you may experience slow response times from the web interfa

RMON and Your Switch 209The Audit LogThe Switch keeps an audit log of all management user sessions, providing a record of a variety of changes, includ

Software Features Explained 21Software Features ExplainedStack ManagementUnits in the Switch 1100/3300 family can be interconnected so that they form

210 CHAPTER 10: RMON

IVPROBLEM SOLVINGChapter 11 Problem Solving

11PROBLEM SOLVINGThis chapter contains a list of known problems and suggested solutions. It covers the following topics: Solving Web Interface Problem

214 CHAPTER 11: PROBLEM SOLVINGSolving Web Interface ProblemsThe Web browser cannot access the Switch over the network. Check that: The IP information

Solving Web Interface Problems 215The web interface takes time to respond to commands, and "Document contains no data" messages are displaye

216 CHAPTER 11: PROBLEM SOLVINGTo do this for Microsoft Internet Explorer Version 3.0:1Start Microsoft Internet Explorer.2From the View menu, select O

Solving Command Line Interface Problems 217 The settings on your terminal or terminal emulator are correct: 8 data bits no parity 1 stop bitThe auto-c

218 CHAPTER 11: PROBLEM SOLVINGYou forget your password and cannot log in. Ask another user with Security access level to log in and initialize the Sw

Solving Serial Web Utility Problems 219 The port through which you are trying to manage the Switch belongs to the Default VLAN (VLAN 1). This is the o

22 CHAPTER 1: SUPERSTACKII SWITCH MANAGEMENT SOFTWAREUnits in the Switch 1100/610 family support three forwarding modes in addition to Store and Forwa

220 CHAPTER 11: PROBLEM SOLVINGYou can change some of the settings for the management workstation using the Advanced Configuration Parameters dialog b

Solving Other Problems 221An error occurs when the utility attempts to transfer the file. There could be a number of reasons for this: The null modem

222 CHAPTER 11: PROBLEM SOLVINGYou have specified that an endstation generates traffic that has a high priority, but when it passes through the networ

Solving Other Problems 223You have attempted to upgrade several Switch units in a stack using TFTP, and one unit fails to upgrade. Take the following

224 CHAPTER 11: PROBLEM SOLVING

VAPPENDICES AND INDEXChapter A Serial Web UtilityChapter B Management Software Upgrade Utility

ASERIAL WEB UTILITYIntroductionIf you are using a management workstation running Microsoft Windows®95/98 and you want to access the web interface thro

228 APPENDIX A: SERIAL WEB UTILITY4In the Run dialog box, type drive:\Win95\Drivers\Slip\Setup (where drive is the letter of your CD-ROM drive) and cl

Using the Serial Web Utility 2296When you have finished, the final installation dialog box is displayed informing you that the Serial Web Utility has

Software Features Explained 23Flow ControlAll the ports on your Switch support flow control, which is a congestion control mechanism. Congestion is ca

230 APPENDIX A: SERIAL WEB UTILITYThe connection is complete if the password panel of the Web interface is displayed. You are now ready to manage the

BMANAGEMENT SOFTWARE UPGRADE UTILITYThe CD-ROM supplied with your Switch includes a management software upgrade utility that can be used to upgrade th

232 APPENDIX B: MANAGEMENT SOFTWARE UPGRADE UTILITYcCopy the management software file to the upgrade directory on the hard drive.dChange your director

GLOSSARY10BASE-TThe IEEE specification for 10Mbps Ethernet over Category 3, 4 or 5 twisted pair cable.100BASE-FXThe IEEE specification for 100Mbps Fas

234 GLOSSARYbridgeA device that interconnects two LANs of a different type to form a single logical network that comprises of two network segments. Br

GLOSSARY235filteringThe process of screening a packet for certain characteristics, such as source address, destination address, or protocol. Filtering

236 GLOSSARYIETFInternet Engineering Task Force. An organization responsible for providing engineering solutions for TCP/IP networks. In the network m

GLOSSARY237loopAn event that occurs when two network devices are connected by more than one path, thereby causing packets to repeatedly cycle around t

238 GLOSSARYPOSTPower On Self Test. An internal test that a Switch carries out when it is powered-up.protocolA set of rules for communication between

GLOSSARY239stackA group of network devices that are integrated to form a single logical device.standby portThe port in a resilient link that takes ove

24 CHAPTER 1: SUPERSTACKII SWITCH MANAGEMENT SOFTWAREIf you use IEEE 802.1p traffic prioritization, we recommend that all relevant ports on your Switc

240 GLOSSARYVLAN taggingA system that allows traffic for multiple VLANs to be carried on a single link.VLTVirtual LAN Trunk. A Switch-to-Switch link t

INDEXSymbols? command 100Numbers3Com Contacts icon 493Com icon 493Com Library icon 493Com Support icon 493Com World Wide Web site, accessing 49802.1p

242 INDEXCCapture (RMON group) 207CD-ROM 34, 227, 231Collisions field (Ethernet/Statistics menu) 125Color Key page 54color-coding of ports, displaying

INDEX243Ffactory defaults 29Fast Forward forwarding mode 22FastIP 26, 181effect on the Switch Database 186enabling 187example 183FastIP listbox (Advan

244 INDEXJJabbers field (Ethernet/Statistics menu) 125Llearned SDB entries 73Link State field (Port Setup page) 61list command (Bridge/MulticastFilter

INDEX245page area of the web interface 48, 50making changes in 53navigating 52Pair State column (Resilient Links page) 80password command (System menu

246 INDEXroving analysis 28, 87displaying information via CLI 127enabling 88ports, defining 87removing via CLI 128setting up via CLI 127start data mon

INDEX247subnet mask 39Subnet Mask field (IP Setup page) 58subnets 39sub-networks. See subnetssummary command (Bridge/Port menu) 113summary command (Br

248 INDEXVLANs (continued)IEEE 802.1Q learning 167modifying a VLAN name via CLI 118placing ports in multiple 85, 166placing ports in single 85, 166rem

Software Features Explained 25 No other address can be learned until security is disabled or the address is manually removed from the database. The ad

26 CHAPTER 1: SUPERSTACKII SWITCH MANAGEMENT SOFTWAREBroadcast StormControlYour Switch supports Broadcast Storm Control, a system that automatically c

Software Features Explained 27Multicast FilteringYour Switch supports two multicast filtering systems: IEEE 802.1p, which uses the GARP Multicast Regi

28 CHAPTER 1: SUPERSTACKII SWITCH MANAGEMENT SOFTWARERoving AnalysisYour Switch supports roving analysis, a system that allows you to attach a network

Default Settings 29Default SettingsTable 4 shows the default settings of units in the Switch 1100/3300 and 610/630 family. If you initialize one of th

CONTENTSABOUT THIS GUIDEConventions 13Related Documentation 15Year 2000 Compliance 15Documentation Comments 16Product Registration 16I Getting Started

30 CHAPTER 1: SUPERSTACKII SWITCH MANAGEMENT SOFTWARERMON Alarm(errors over 1min)Enabled:High threshold: 20 errors per second — NotifyLow threshold: 1

2SETTING UP FOR MANAGEMENTThis chapter explains the various ways of managing a Switch, and details the steps required before you can configure a Switc

32 CHAPTER 2: SETTING UP FOR MANAGEMENTMethods of Managing a SwitchYou can manage a Switch using one of the following methods: Web interface managemen

Setting Up Web Interface Management 33Setting Up Web Interface ManagementYou can access the web interface using: A management workstation connected to

34 CHAPTER 2: SETTING UP FOR MANAGEMENTSetting Up Over theNetworkTo manage a Switch using the web interface over an IP network:1You must set up the Sw

Setting Up Web Interface Management 35 On the CD-ROM, inserted into the CD-ROM drive of a networked CD-ROM server On a Web serverIf several users are

36 CHAPTER 2: SETTING UP FOR MANAGEMENTSetting Up Command Line Interface ManagementYou can access the command line interface using: A terminal or term

Setting Up SNMP Management 37Setting Up Over theNetworkTo manage a Switch using the command line interface over a network using Telnet:1You must set u

38 CHAPTER 2: SETTING UP FOR MANAGEMENTManaging a Switch Over the NetworkWhen managing a Switch over the network, the Switch must be correctly configu

Logging in as a Default User 39World Wide Web site: http://www.internic.netSubnets and Using aSubnet MaskYou can divide your IP network into sub-netwo

2SETTING UP FOR MANAGEMENTMethods of Managing a Switch 32Setting Up Web Interface Management 33Setting Up Through the Console Port 33Setting Up Over t

40 CHAPTER 2: SETTING UP FOR MANAGEMENTCAUTION:To protect your Switch from unauthorized access, you must change all default passwords as soon as possi

IITHE MANAGEMENT INTERFACESChapter 3 Working With the Web InterfaceChapter 4 Working With the Command Line Interface

3WORKING WITH THE WEB INTERFACEThis chapter describes how to access and use the web interface. It covers the following topics: Accessing the Web Inter

44 CHAPTER 3: WORKING WITH THE WEB INTERFACEAccessing the Web InterfaceYou can access the web interface through the console port or over the network.T

Accessing the Web Interface 454Enter your user name and password: If you have been assigned a user name and password, enter those details. If you are

46 CHAPTER 3: WORKING WITH THE WEB INTERFACEThe Getting Started PagesWhen you access the web interface for the first time or after a power-off/on cycl

The Getting Started Pages 473The URL or file path of the online help and online documentation for the stack. If the files are installed on your manage

48 CHAPTER 3: WORKING WITH THE WEB INTERFACEThe Main Web InterfaceThe main web interface is made up of three areas: The BannerThis is always displayed

The Main Web Interface 49The External LinkIconsThe banner of the main web interface contains several External Link icons that allow you to access info

Setting Up IP Information 58Configuring a Port 59Configuring the Console Port 66Changing the Management Settings for the Stack 67Specifying a Descript

50 CHAPTER 3: WORKING WITH THE WEB INTERFACEThe ManagementIconsThe side-bar of the main web interface contains several Management Icons that allow you

The Main Web Interface 51 Unit Status — This page allows you to display the general administration details of the Switch. IP Setup — This page allows

52 CHAPTER 3: WORKING WITH THE WEB INTERFACE Roving Analysis Setup — This page allows you to set up roving analysis ports for the stack. Resilient Lin

The Main Web Interface 53Figure 5 Web interface mapMaking Changes in the Page AreaIf you change any setting on a page in the page area, you must cli

54 CHAPTER 3: WORKING WITH THE WEB INTERFACEConfiguring the Current SwitchYou can configure the current Switch and the ports on that Switch using the

Configuring the Current Switch 55Displaying the Speed and Duplex Mode of PortsYou can display the speed and duplex mode of ports in the Switch graphic

56 CHAPTER 3: WORKING WITH THE WEB INTERFACEDisplayingAdministrationDetailsYou can display general administration details about the Switch using the U

Configuring the Current Switch 57Hardware RevDisplays the version number of the Switch hardware.MAC AddressDisplays the MAC (Ethernet) address assigne

58 CHAPTER 3: WORKING WITH THE WEB INTERFACESetting Up IPInformationYou can set up the IP information for the Switch using the IP Setup page. To acces

Configuring the Current Switch 59Default RouterIf your network contains one or more routers, this field allows you to enter the IP address of the defa

Defining Monitor Ports and Analysis Ports 87Enabling the Roving Analysis System 88Resetting All the Units in the Stack 88What Happens During a Reset?

60 CHAPTER 3: WORKING WITH THE WEB INTERFACEFigure 10 The Port Setup page with auto-negotiation enabledFigure 11 The Port Setup page with auto-neg

Configuring the Current Switch 61The Port Setup page contains the following elements:PortDisplays the number of the selected port.Link State Enabled /

62 CHAPTER 3: WORKING WITH THE WEB INTERFACESwitch 610 and Switch 1100 only. The 10BASE-T/100BASE-TX ports on the Switch 1100 cannot auto-negotiate IE

Configuring the Current Switch 63HD Flow Control Enabled / DisabledAllows you to enable or disable the Intelligent Flow Management flow control that c

64 CHAPTER 3: WORKING WITH THE WEB INTERFACEFWD Unknown VLAN Tags Enabled / Disabled / AutoAllows you to specify whether the port forwards traffic tha

Configuring the Current Switch 65You cannot enable security on a port that is part of a resilient link, or a port that is part of a port trunk. For mo

66 CHAPTER 3: WORKING WITH THE WEB INTERFACE802.1Q VLAN Learning Stack Default / DisabledAllows you to specify whether the port uses IEEE 802.1Q learn

Changing the Management Settings for the Stack 67The Console Port Configuration page contains the following elements:Console connection Terminal / Mod

68 CHAPTER 3: WORKING WITH THE WEB INTERFACEFigure 13 The System Name pageThe Name field allows you to enter a descriptive name for the stack. The n

Changing the Management Settings for the Stack 69The Password Setting page contains the following elements:New PasswordAllows you to enter a new passw

Displaying Port Summary Information 113Enabling and Disabling VLT Tagging on a Port 114Setting the Bridge Spanning Tree Forward Delay 114Setting the B

70 CHAPTER 3: WORKING WITH THE WEB INTERFACESpecifying theLocation of theOnline Help andDocumentationYou can specify the location of the online help a

Configuring the Stack 71Specifying ContactDetailsYou can specify the details of a person to contact about the stack using the Contact page.To access t

72 CHAPTER 3: WORKING WITH THE WEB INTERFACEConfiguring theSwitch DatabaseYou can configure the Switch Database of the stack using the Switch Database

Configuring the Stack 73Databases entries can have three states: Learned — The stack has placed the entry into the Switch Database when a packet was r

74 CHAPTER 3: WORKING WITH THE WEB INTERFACETo display a subset of the entries for the current unit:1From the Port Filter listbox, select a port that

Configuring the Stack 75The Display Database Entries table is not automatically updated with the new entry. To update the table:aFrom the Select Actio

76 CHAPTER 3: WORKING WITH THE WEB INTERFACEConfiguring theAdvanced StackSettingsYou can configure the advanced settings of the stack using the Advanc

Configuring the Stack 77short time to be forwarded, but all error packets except fragments are propagated. Store and Forward — Received packets are bu

78 CHAPTER 3: WORKING WITH THE WEB INTERFACEAgeing Time (Secs) 0 / 60 ... 1000000Allows you to specify the ageing time (in seconds) for all learned en

Configuring the Stack 79Setting Up ResilientLinksYou can set up resilient links for the stack using the Resilient Links page.To access the page:1Click

Specifying IP and SLIP Information 133Displaying IP and SLIP Information 135Enabling and Disabling BOOTP 135Pinging Other Devices 136Resetting the IP

80 CHAPTER 3: WORKING WITH THE WEB INTERFACE Resilient link pairs can only be set up using fiber or twisted pair ports. The main and standby ports in

Configuring the Stack 813Click the Next... button.4From the Main Link field, select the main port of the resilient link pair.5Click the Next... button

82 CHAPTER 3: WORKING WITH THE WEB INTERFACEFigure 21 The Port Trunk Setup pageWhat are Port Trunks?Port trunks are connections that allow devices t

Configuring the Stack 833Click a port in the Available Ports listbox.4Click the Add >> button. The port is assigned to the port trunk, and the p

84 CHAPTER 3: WORKING WITH THE WEB INTERFACEWhat are VLANs?A VLAN is a flexible group of devices that can be located anywhere in a network, but they c

Configuring the Stack 85You cannot edit the 802.1Q VLAN ID if ports are already assigned to the VLAN.Deleting VLAN InformationThe VLAN Setup page allo

86 CHAPTER 3: WORKING WITH THE WEB INTERFACE5To place the port in another VLAN, repeat steps 1 to 4 with that VLAN.To place a port back in the Availab

Configuring the Stack 87What is Roving Analysis?Roving analysis is a system that allows you to attach a network analyzer to one port and use it to mon

88 CHAPTER 3: WORKING WITH THE WEB INTERFACEEnabling the Roving Analysis SystemThe Roving Analysis Setup page allows you to enable the roving analysis

Configuring the Stack 89setting is the IP and SLIP information, which is retained to ensure that you can continue managing the stack. You may want to

III Management Reference 5PORT TRUNKSWhat are Port Trunks? 158Port Trunks and Your Switch 158Placing Ports in a Port Trunk 159Port Trunk Example 1606V

90 CHAPTER 3: WORKING WITH THE WEB INTERFACETo upgrade the management software:1Copy the software upgrade file into an appropriate directory on a TFTP

Displaying Statistics for the Current Switch 91Displaying Statistics for the Current SwitchYou can display statistics for the current Switch in the st

92 CHAPTER 3: WORKING WITH THE WEB INTERFACETo display the Total Errors graph:1From the listbox, choose Total Errors.2Click Apply.If you click a port

Displaying Statistics for the Current Switch 93Figure 26 The graphs displayed by the Port Graph pageYou can choose to display graphs for Utilization

94 CHAPTER 3: WORKING WITH THE WEB INTERFACETo display the Packet Size Distribution graph:1From the first listbox, choose a port.2From the second list

4WORKING WITH THE COMMAND LINE INTERFACEThis chapter describes how to access and use the command line interface. It covers the following topics: Acces

96 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACEAccessing the InterfaceTo access the command line interface, take the following steps:1Set up you

About the Interface Menus 97How Many Users CanAccess the Interface?The command line interface can be accessed by several users at the same time: If th

98 CHAPTER 4: WORKING WITH THE COMMAND LINE INTERFACE Feature menuThis menu contains commands that allow you to configure Roving Analysis Port, enable

About the Interface Menus 99Figure 28 Command line interface menu structureEntering CommandsThe command area of the command line interface contains