Digital Networks DNswitch 800 Web Management Manual

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DNswitch 800

Web Management Guide

Digital Networks

DNswitch 800

Web Management Guide

Part Number: WM-DSA8G-00

March 2001

This book describes how to install, cable and use the Digital Networks DNswitch 800.

Revision/Update Information: This is a new document.

Digital Networks makes no representations that the use of its products in the manner described in this publication will not infringe on existing or future patent rights, nor do the descriptions contained in this publication imply the granting of licenses to make, use, or sell equipment or software in accordance with the description.

Possession, use, or copying of the software described in this publication is authorized only pursuant to a valid written license from Digital Networks or an authorized sublicensor.

Digital Networks 200 Brickstone Square Andover, MA 01810

Web site: www.dnpg.com

Digital Networks is the tradename of DNPG, LLC, and is not affiliated with Compaq Computer Corporation. DIGITAL, the Digital Logo and DEC are used under license from Compaq Computer Corporation. clearVISN and the clearVISN logo are trademarks of Cabletron Systems, Inc.

Microsoft, Windows, Windows 95, Windows 98, and Windows NT are either trademarks or registered trademarks of Microsoft Corporation.

Netscape and Netscape Navigator are trademarks of Netscape Communications Corporation.

All other trademarks and registered trademarks are the property of their respective holders.

FCC Class B Certification (USA)

This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including interference that may cause undesired operation.

Warning! This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the distance between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from the one which the

receiver is connected to.

• Consult the dealer or an experienced radio/TV technician for help.

You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

Attach 62.5/125 or 50/125 µm multimode fiber cable to the SC ports.

Note: In order to maintain compliance with the limits of a Class B digital device, Digital Networks requires that you use a quality interface cable when connecting to this device. Changes or modifications not expressly approved by Digital Network could void the user’s authority to operate this equipment. Suggested cable type is 62.5/125 or 50/125 µm multimode fiber cable for SC port connections.

Canada Department of Communications - Class B

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of the Department of Communications.

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe B prescrites dans la norme sur le matériel brouilleur: “Appareils Numériques,” NMB-003 édictée par le ministère des Communications.

BSMI Class A (Taiwan)

VCCI Class B Compliance (Japan)

CE Mark Declaration of Conformance for EMI and Safety

This is to certify that this product complies with ISO/IEC Guide 22 and EN45014.

It conforms to the following specifications:

EMC: EN55022(1988)/CISPR-22(1985) class B

EN60555-2(1995) class B EN60555-3 IEC1000-4-2(1995) 4kV CD, 8kV AD IEC1000-4-3(1995) 3V/m IEC1000-4-4(1995) 1kV - (power line),

0.5kV - (signal line)

IEC1000-4-6(1995) 3Vrms

This product complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC.

Safety Compliance

Warning: Fiber Optic Port Safety

Avertissment: Ports pour fibres optiques - sécurité sur le plan optique

Warnhinweis: Faseroptikanschlüsse - Optische Sicherheit

When using a fiber optic port, never look at the transmit laser while it is powered on. Also, never look directly at the fiber TX port and fiber cable ends when they are powered on.

Ne regardez jamais le laser tant qu'il est sous tension. Ne regardez jamais directement le port TX (Transmission) à fibres optiques et les embouts de câbles à fibres optiques tant qu'ils sont sous tension.

Niemals ein Übertragungslaser betrachten, während dieses eingeschaltet ist. Niemals direkt auf den Faser-TX-Anschluß und auf die Faserkabelenden schauen, während diese eingeschaltet sind.

Underwriters Laboratories Compliance Statement Important! Before making connections, make sure you have the correct cord set. Check it

(read the label on the cable) against the following:

The unit automatically matches the connected input voltage. Therefore, no additional adjustments are necessary when connecting it to any input voltage within the range marked on the rear panel.

Wichtige Sicherheitshinweise (Germany)

1. Bitte lesen Sie diese Hinweise sorgfältig durch.

2. Heben Sie diese Anleitung für den späteren Gebrauch auf.

3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie keine Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur Reinigung.

4. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht zugänglich sein.

5. Das Gerät ist vor Feuchtigkeit zu schützen.

6. Bei der Aufstellung des Gerätes ist auf sicheren Stand zu achten. Ein Kippen oder Fallen könnte Beschädigungen hervorrufen.

7. Die Belüftungsöffnungen dienen der Luftzirkulation, die das Gerät vor Überhitzung schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt werden.

8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.

9. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollte auch nichts auf der Leitung abgestellt werden.

10. Alle Hinweise und Warnungen, die sich am Gerät befinden, sind zu beachten.

11. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen. Somit wird im Falle einer Überspannung eine Beschädigung vermieden.

12. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das Gerät gelangen. Dies könnte einen Brand bzw. elektrischen Schlag auslösen.

13. Öffnen sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit nur von authorisiertem Servicepersonal geöffnet werden.

14. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu überprüfen: a. Netzkabel oder Netzstecker sind beschädigt. b. Flüssigkeit ist in das Gerät eingedrungen.

Operating Voltage Cord Set Specifications

120 Volts UL Listed/CSA Certified Cord Set

Minimum 18 AWG Type SVT or SJT three conductor cord Maximum length of 15 feet Parallel blade, grounding type attachment plug

rated 15A, 125V

240 Volts (Europe only) Cord Set with H05VV-F cord having three

conductors with minimum diameter of 0.75 mm

IEC-320 receptacle Male plug rated 10A, 250V

c. Das Gerät war Feuchtigkeit ausgesetzt. d. Wenn das Gerät nicht der Bedienungsanleitung entsprechend funktioniert oder

Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen. e. Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt. f. Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.

15. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden. Für einen Nennstrom bis 6A und einem Gerätegewicht größer 3kg ist eine Leitung nicht leichter als H05VV-F, 3G, 0.75mm

einzusetzen. Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70dB(A) oder weniger.

DNswitch 800 Table of Contents i

Table of Contents

1. OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Digital Networks WebView Description. . . . . . . . . . . . . . . . . . . . . . . . . . 1

Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

System Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2. USING WEB-BASED MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Setting Up Web Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Setting an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Setting a Default Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Setting the Administrator Password. . . . . . . . . . . . . . . . . . . . . . . . . 4

Setting Trap Destinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Enabling Web Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Starting and Stopping Digital Networks WebView . . . . . . . . . . . . . . . . . 5

Digital Networks WebView User Interface . . . . . . . . . . . . . . . . . . . . . . . 6

Areas of the User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Using Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3. CONFIGURING AND MONITORING THE SWITCH . . . . . . . . . . . . . . . . . . . . 9

Screen Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Switch Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

SNMP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SNMP Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Trap Managers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Security Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Change Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Firmware Upgrade Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Web Upload Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

TFTP Download Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Configuration Save and Restore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Configuration Upload Management . . . . . . . . . . . . . . . . . . . . . . . . 18

Configuration Download Management . . . . . . . . . . . . . . . . . . . . . 18

Address Table Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

STA (Spanning Tree Algorithm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Spanning Tree Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Spanning Tree Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

STA Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Configuring Bridge MIB Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Bridge Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Bridge Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

ii Table of Contents DNswitch 800

Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Port Priority Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Port Traffic Class Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

VLAN Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Configuring Virtual LANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

VLAN Basic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

VLAN Current Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

VLAN Static List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

VLAN Static Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

VLAN Static Membership by Port . . . . . . . . . . . . . . . . . . . . . . . . . 35

VLAN Port Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

IGMP Multicast Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Configuring IGMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Multicast Router Port Information . . . . . . . . . . . . . . . . . . . . . . . . . 38

Static Multicast Router Port Configuration . . . . . . . . . . . . . . . . . . 39

IGMP Member Port Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

IP Multicast Registration Table . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Port Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Port Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Port Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Port Broadcast Storm Protect Configuration . . . . . . . . . . . . . . . . . 44

Port Security Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Using a Port Mirror for Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Port Trunk Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Etherlike Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

RMON Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

APPENDIX A. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Cannot Connect to the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

System is Disconnected from the Switch . . . . . . . . . . . . . . . . . . . 53

Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Can I Open More Than One Window for Same Switch?. . . . . . . . 54

Will Network Congestion Prevent Use of

Digital Networks WebView?. . . . . . . . . . . . . . . . . . . . . . . . . . 54

How Do I Confirm a Successful Software Download? . . . . . . . . . 54

INDEX

DNswitch 800 Overview 1

1. OVERVIEW

Digital Networks WebView Description

This user guide describes Digital Networks WebView, a Web browserbased utility which allows you to remotely configure and manage Digital Networks products, including the DNswitch 800. There is no software to install as Web management capability is built into the switch’s management.

Digital Networks WebView provides a graphical, real-time representation of the front panel on the DNswitch 800. This graphic, along with additionally defined areas of the browser interface, allow you to interactively configure the switch, monitor its status, and view statistical information.

Digital Networks WebView provides a simple, intuitive method for managing the DNswitch 800. This switch can also be managed via the serial console, Telnet, or SNMP.

Features

• Switch configuration and monitoring from any Java-enabled browser

(Preferred browsers include Internet Explorer 4.0 or above, or

Netscape Navigator 4.0 or above)

• Easy to navigate menuing system

• Detailed parameter descriptions using the Help button

• Switch operating status viewing front panel color indications

• Alarm configuration capability

• Web management enable

System Requirements

The requirements for running Digital Networks WebView are relatively simple. You will need a Java-enabled, frames-capable Web browser and a TCP/IP network connection to the switch, whether over a local network, a remote private network, or over the Internet.

When connecting over the Internet, the integrity of your connection will have an impact on the speed and performance of tasks. If your connection is subject to prohibitive periods of network congestion, or experiences high packet loss, you may need to consider a different Internet service provider.

In addition, Digital Networks WebView uses SNMP for some of its communications with the switch. This may cause problems when the application is run across some Internet firewalls, which may be configured to disallow SNMP access.

2 Overview DNswitch 800

Conventions

This guide uses the following user input conventions:

• When you read “Select,” use the mouse to either select the link identified by a hand icon, or select the identified button or area.

• When you read “Enter,” type in the text and select the button identified in the procedure.

DNswitch 800 Using Web-Based Management 3

2. USING WEB-BASED MANAGEMENT

Setting Up Web Management

Before running Web-based management, some basic configuration of the switch may need to be performed. The following information at a minimum must be configured or known for the switch to be managed:

• IP Address

• Administrator password

• HTTP Server Enable

In addition, several other parameters may need to be configured or known to properly communicate with the switch or allow full management capability. These include:

• Default Gateway

• Trap Destination and Community Name

Configuration of these items may be made from the console user interface, which is accessible via either the serial console or Telnet. Refer to the DNswitch 800 User’s Guide that came with your system for more information about setting up either of these connections to the switch. The following subsections describe the required configuration.

Setting an IP Address

The IP address for the switch must be set before it can be managed with Digital Networks WebView. The switch IP address may be automatically set using the BootP protocol, in which case the actual address assigned to the switch must be known. Refer to the DNswitch 800 Management Guide.

The IP address may alternatively be set manually as follows:

1. Starting at the Main Menu of the console user interface, select

Management Setup Menu / Network Configuration / IP Configuration.

2. Select IP Address from the menu and enter the IP address.

3. Select Subnet Mask from the menu and enter the appropriate mask.

4. Press <APPLY>.

4 Using Web-Based Management DNswitch 800

Setting a Default Gateway

The default gateway parameter defines the IP address of a router or other network device to which IP packets are to be sent if destined for a subnet outside of that in which the switch is operating. This parameter must be set if you are attempting to manage the switch using Digital Networks WebView from a remote network or across the Internet.

1. Starting at the Main Menu of the console user interface, select Management Setup Menu / Network Configuration / IP Configuration.

2. Select Gateway IP from the menu and enter the router IP address. Press <APPLY>.

Setting the Administrator Password

Management access to the switch using Digital Networks WebView is restricted based on the an administrator password. Administrators have read/write access for parameters governing the switch. You should therefore assign a password to the default administrator (User Name: admin) as soon as possible, and store it in a safe place. (If for some reason your password is lost, or you cannot gain access to the system’s configuration program, contact Digital Networks Technical Support for assistance.)

1. Starting at the Main Menu of the console user interface, select Management Setup Menu / Console Login Configuration.

2. Move to the Password field for the User Name “admin” in this menu, and enter the password. Press <APPLY>.

Setting Trap Destinations

If you wish to record SNMP traps, or events, generated by the switch, you must configure the destination for IP Trap Managers. A trap destination is the IP address of the system being used to manage the device, in this case the IP address of the computer system on which Digital Networks WebView is being run.

1. Starting at the Main Menu of the console user interface, select Management Setup Menu / SNMP Configuration / IP Trap Managers.

2. Select an entry for an IP Trap Manager from the menu, then enter the IP address and community name.

3. Move to the Status field, and use the Space bar to select ENABLED.

4. Press <APPLY>.

DNswitch 800 Using Web-Based Management 5

Enabling Web Management

The HTTP Configuration menu is used to enable or disable the ability to manage the switch with Web management. The HTTP Server parameter must be set to ENABLED before Digital Networks WebView can be used to manage the switch. If it is desired to disallow Web management of the switch, this parameter should be set to DISABLED

1. Starting at the Main Menu of the console user interface, select

Management Setup Menu / Network Configuration / HTTP Configuration.

2. Select HTTP Server, and use the Space bar to toggle between

ENABLED and DISABLED.

Starting and Stopping Digital Networks WebView

Do the following to use Digital Networks WebView:

1. Start a Java-enabled Web browser from any machine with network

access to the switch. (Preferred browsers include Internet Explorer

4.0 or above, or Netscape Navigator 4.0 or above.)

2. Enter the IP address for the switch you want to manage in the URL

field of the browser.

3. The screen shown below will appear, prompting you to enter the user

name and password for management access.

Use the name for the default administrator (admin), and the password previously entered in the Setting Up Web Management section. This will allow read/write access to the switch.

The full application will now launch. A four-frame page will display with the product graphic located in the upper right hand frame.

4. To stop Digital Networks WebView, close the Web browser

application.

6 Using Web-Based Management DNswitch 800

Digital Networks WebView User Interface

The Digital Networks WebView user interface provides access to various switch configuration and management screens, allows you to view performance statistics, and permits you to graphically monitor system status.

Areas of the User Interface

Figure 2-1 shows the Digital Networks WebView user interface. The user interface is divided into four distinct areas as described in Table 2-1.

Figure 2-1. Digital Networks WebView User Interface

Area 2

Area 1

Area 3

DNswitch 800 Using Web-Based Management 7

Table 2-1. Areas of the User Interface

Table 2-2 describes configuration and system information functions available In Area 2.

Table 2-2. Area 2 Functions

Area Function

1 Presents a graphical near real-time image of the front panel of the

selected switch. This area displays the switch’s ports, showing port activity, duplex mode, or flow control, depending on the specified mode.

Various areas of the graphic can be selected for performing management functions, including the ports, management, or the case.

2 Displays a list of links allowing you to go to the associated menu or

screen by selecting the item.

3 Presents system information based on your selection.

Function Description

System Provides basic system description, including contact information.

Switch Shows hardware/firmware version numbers and power status of the

switch.

IP Includes boot state, IP address, and Telnet session count.

SNMP Configures communities and trap managers; and activates traps.

Security Sets password for system access.

Upgrade Downloads new version of firmware to update your system.

Configure Allows you to save/restore the switch configuration to a file on a server.

Address Table Provides full listing or unicast addresses, sorted by address or VLAN.

STA Enables Spanning Tree Algorithm; also sets parameters for switch

priority, hello time, maximum message age, and forward delay; as well as port priority and path cost.

Bridge Extension

Displays/configures extended bridge capabilities provided by this switch, including support for traffic classes, GMRP multicast filtering, and VLAN extensions.

Priority Configures default port priorities and queue assignments.

VLAN Management

Allows you to restrict management access to the switch to one VLAN.

VLAN Configures VLAN group members, automatic registration with GVRP,

and other port-specific VLAN settings.

IGMP Configures IGMP multicast filtering.

Port Enables any port, sets communication mode to auto-negotiation, full

duplex or half duplex, and enables/disables flow control.

Mirror Sets the source and target ports for mirroring.

Trunk Specifies ports to group into aggregate trunks.

Statistics Displays statistics on network traffic passing through the selected port.

8 Using Web-Based Management DNswitch 800

Configuration Options

Web pages that include selection options have a drop-down list with a “Select” button to confirm the selection. Configurable parameters have a dialog box or a drop-down list. Once a configuration change has been made on a page, be sure to click on the “Apply” button at the bottom of the page to confirm the new setting. The following table summarizes the Web page configuration buttons.

Table 2-3. Web Page Configuration Buttons

Using Help

General Digital Networks WebView help guidelines are available by using the Help button in Area 3.

Button Action

Select Sets the selected option from the drop-down list.

Apply Sets specified values in the SNMP agent.

Revert Cancels specified values prior to pressing the “Apply” button.

Refresh Immediately updates values from the SNMP agent.

Help Provides help on using the Web management interface.

DNswitch 800 Configuring and Monitoring the Switch 9

3. CONFIGURING AND MONITORING THE SWITCH

This section, arranged by topic, describes how to perform common monitoring and configuration tasks on a DNswitch 800 using Digital Networks WebView. After you have properly configured the switch, and started Digital Networks WebView, you can perform any of the tasks described in the following sections.

Screen Hierarchy

The contents of this chapter are arranged following the structure shown in Figure 3-1.

Figure 3-1. Digital Networks WebView Screen Hierarchy

10 Configuring and Monitoring the Switch DNswitch 800

System Information

Use the System Information screen to display descriptive information about the switch, or for quick system identification as shown in the following figure and table.

Figure 3-2. System Information

Parameter Description

System Name

Name assigned to the switch system.

Object ID MIB II object identifier for switch’s network management

subsystem.

IP Address

IP address of the switch you are managing. The switch’s management supports SNMP over UDP/IP transport protocol. In this environment, all systems on the Internet, such as network interconnection devices and any PC accessing the switch (or running management software) must have an IP address. Valid IP addresses consist of four decimal numbers, of 0 to 255, separated by periods. Anything outside of this format will not be accepted by the configuration program.

Location

Specifies the area or location where the system resides.

Contact

Contact person for the system.

System Up Time Length of time the current management software has been

running.

Maximum string length is 255, but the screen only displays 45 characters. You

can use the arrow keys to browse the whole string.

The default value is 10.1.0.1

DNswitch 800 Configuring and Monitoring the Switch 11

Switch Information

Use the Switch Information screen to display hardware/firmware version numbers for the switch, as well as the power status of the system.

Main Board

Figure 3-3. Switch Information - Main Board

Parameter Description

Serial Number Serial number of the main board.

Number of Ports Number of ports on the switch.

Hardware Version Hardware version of the main board.

Firmware Version System firmware version in ROM.

POST ROM Version Management’s Power-on Self-test version.

Internal Power Status Power status for the switch.

Redundant Power Status

Redundant power status for the switch.

12 Configuring and Monitoring the Switch DNswitch 800

IP Configuration

Use the IP Configuration screen to set the bootup option, configure the Ethernet IP address for the switch, or set the number or concurrent Telnet sessions allowed. The screen shown below is described in the following table.

Figure 3-4. IP Configuration

Parameter Default Description

IP State BootP-Get-IP Specifies whether IP functionality is enabled via

manual configuration, or set by Boot Protocol (BootP). Options include:

BootP Get IP - IP is enabled but will not function until a BootP reply has been received. BootP requests will be periodically broadcast by the switch in an effort to learn its IP address. (BootP values include the IP address, default gateway, and subnet mask.)

User-Configured - IP functionality is enabled based on the default or user specified IP Configuration.

IP Address 10.1.0.1 IP address of the switch you are managing. The

switch supports SNMP over UDP/IP transport protocol. In this environment, all systems on the Internet, such as network interconnection devices and any PC accessing the switch (or running management software) are assigned an IP address. Valid IP addresses consist of four numbers, of 0 to 255, separated by periods. Anything outside of this format will not be accepted by the configuration program.

Subnet Mask 255.255.0.0 Subnet mask of the switch. This mask identifies

the host address bits used for routing to specific subnets.

Gateway IP Gateway used to pass trap messages from the

switch to the management station. Note that the gateway must be defined if the management station is located in a different IP segment.

MAC Address Physical address of the switch.

Number of Telnet sessions

4 Sets the number of concurrent Telnet sessions

allowed to access the switch.

DNswitch 800 Configuring and Monitoring the Switch 13

SNMP Configuration

Use the SNMP Configuration screen to display and modify parameters for the Simple Network Management Protocol (SNMP). The switch includes an SNMP agent which monitors the status of its hardware, as well as the traffic passing through its ports. A computer attached to the network, called a Network Management Station (NMS), can be used to access this information. Access rights to the switch are controlled by community strings. To communicate with the switch, the NMS must first submit a valid community string for authentication. The options for configuring community strings and related trap functions are described in the following figures and table.

SNMP Community

The following figure and table describe how to configure the community strings authorized for management access. Up to 5 community names may be entered.

Figure 3-5. SNMP Community

Parameter Description

SNMP Community Capability

Up to 5 community strings may be used.

Add/Remove Add/remove strings from the active list.

Community String A community entry authorized for management access.

(The maximum string length is 19 characters).

Access Mode Management access is restricted to Read Only or Read/Write.

14 Configuring and Monitoring the Switch DNswitch 800

Trap Managers

The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch. Up to 5 trap managers may be entered.

Figure 3-6. Trap Managers

Parameter Description

Trap Manager Capability Up to 5 trap managers may be used.

Trap Manager IP Address IP address of the trap manager.

Trap Manager Community String

A community authorized to receive trap messages.

Add/Remove Add/remove strings from the active list.

Enable Authentication Traps

Issues a trap message to specified IP trap managers whenever authentication of an SNMP request fails.

Default: enabled

DNswitch 800 Configuring and Monitoring the Switch 15

Security Configuration

Use the Security Configuration screen to restrict management access based on a specified password. The Administrator has write access for parameters governing the switch. You should therefore assign a password to the Administrator as soon as possible, and store it in a safe place. (If for some reason your password is lost, or you cannot gain access to the system’s configuration program, contact Digital Networks Technical Support for assistance.)

Change Password

Figure 3-7. Change Password

This password is for the system Administrator, with access privilege of Read/Write for all screens. Passwords can consist of up to 11 alphanumeric characters and are not case sensitive. (User name: admin; default password: null)

16 Configuring and Monitoring the Switch DNswitch 800

Firmware Upgrade Options

You can upgrade system firmware via a Web browser, a TFTP server, or a direct connection to the console port (refer to the DNswitch 800 Management Guide).

Web Upload Management

Use the Web Upload Management menu to load software updates into the switch. The upload file should be a DNswitch 800 binary file from Digital Networks; otherwise the switch will not accept it. The success of the upload operation depends on the quality of the network connection. After uploading the new software, the switch will automatically restart itself. Parameters shown on this screen are indicated in the following figure and table.

Figure 3-8. Web Upload Management

Parameter Description

Upload Mode Indicates an upload to permanent flash ROM.

File Name The binary file to download. Use the browse button to locate the

file on your local network.

Start Web Upload Starts uploading the file over the network.

DNswitch 800 Configuring and Monitoring the Switch 17

TFTP Download Management

Use the TFTP Download Management menu to load software updates into the switch. The download file should be a DNswitch 800 binary file from Digital Networks; otherwise the switch will not accept it. The success of the download operation depends on the accessibility of the TFTP server and the quality of the network connection. After downloading the new software, the switch will automatically restart itself. Parameters shown on this screen are indicated in the following figure and table.

Figure 3-9. TFTP Download Management

Parameter Description

Server IP Address IP address of a TFTP server.

Download Mode Indicates a download to permanent flash ROM.

File Name The binary file to download.

Start TFTP Download

Issues request to TFTP server to download the specified file.

18 Configuring and Monitoring the Switch DNswitch 800

Configuration Save and Restore

Use the Configure screen to save the switch configuration settings to a file on a TFTP server. The file can be later downloaded to the switch to restore the switch’s settings. The success of the operation depends on the accessibility of the TFTP server and the quality of the network connection.

Configuration Upload Management

Use the Configuration Upload Management to save the switch configuration to a file on a TFTP sever. Parameters shown on this screen are indicated in the following figure and table.

Figure 3-10. Configuration Upload Management

Configuration Download Management

Use the Configuration Download Management to restore switch configuration settings from a file on a TFTP sever. Parameters shown on this screen are indicated in the following figure and table.

Figure 3-11. Configuration Download Management

Parameter Description

Server IP Address IP address of a TFTP server.

File Name The name of the file to contain the switch configuration settings.

Start Configuration TFTP Upload

Issues a request to upload the configuration settings to the specified file on the TFTP server.

Parameter Description

Server IP Address IP address of the TFTP server.

File Name The name of the file that contains the switch configuration

settings you wish to restore.

Start Configuration TFTP Download

Issues a request to the TFTP server to download the specified file.

DNswitch 800 Configuring and Monitoring the Switch 19

Address Table Configuration

The Address Table contains the unicast MAC addresses and VLAN identifier associated with each port (that is, the source port associated with the address and VLAN), sorted by MAC address or VLAN. You can also clear the entire address table, or information associated with a specific address; or set the aging time for deleting inactive entries. The information displayed in the Address Table is indicated in the following figure and table.

Figure 3-12. Address Table

Parameter Description

Aging Time Time-out period in seconds for aging out dynamically learned

forwarding information.

Range: 10 - 415 secs; default: 300 secs.

Dynamic Address Counts

The number of dynamically learned addresses currently in the table.

Static Address Counts

The number of static addresses currently in the table.

Address Table All entries, sorted by address or VLAN ID.

Address Table Sort Key

The system displays the MAC address of each node and port whose address table includes this MAC address, the associated VLAN(s), and the address status (i.e., dynamic or static).

New Static Address Use these fields to add or remove a static entry to the address

table. Indicate the address, port and VLAN group when adding a new entry.

Add/Remove Adds/removes selected address.

Clear Table Removes all addresses from the address table.

20 Configuring and Monitoring the Switch DNswitch 800

STA (Spanning Tree Algorithm)

The Spanning Tree Algorithm can be used to detect and disable network loops, and to provide backup links between switches, bridges or routers. This allows the switch to interact with other bridging devices (that is, STAcompliant switch, bridge or router) in your network to ensure that only one route exists between any two stations on the network. For a more detailed description of how to use this algorithm, refer to Appendix A, “Spanning Tree Concepts,” in the Management Guide.

DNswitch 800 Configuring and Monitoring the Switch 21

Spanning Tree Information

The Spanning Tree Information screen displays a summary of the STA information for the overall bridge or for a specific port. To make any changes to the parameters for the Spanning Tree, use the STA Configuration and STA Port Configuration screens.

Spanning Tree

The parameters shown in the following figure and table describe the current bridge STA Information.

Figure 3-13. STA Information - Spanning Tree

Parameter Description

Spanning Tree State

Shows if the switch is enabled to participate in an STAcompliant network.

Bridge ID A unique identifier for this bridge, consisting of bridge priority

plus MAC address (where the address is normally taken from Port 1).

Max Age The maximum time (in seconds) a device can wait without

receiving a configuration message before attempting to reconfigure.

Hello Time The time interval (in seconds) at which the root device transmits

a configuration message.

Forward Delay The maximum time (in seconds) the root device will wait before

changing states (i.e., listening to learning to forwarding).

Root Port The number of the port on this switch that is closest to the root.

This switch communicates with the root device through this port. If there is no root port, then this switch has been accepted as the root device of the spanning tree network.

Designated Root The priority and MAC address of the device in the spanning tree

that this switch has accepted as the root device.

Root Path Cost The path cost from the root port on this switch to the root device.

Configuration Changes

The number of times the spanning tree has been reconfigured.

Last Topology Change

The time since the spanning tree was last reconfigured.

22 Configuring and Monitoring the Switch DNswitch 800

Ports

The parameters shown in the following figure and table are for port STA Information (Port 1-8).

Figure 3-14. STA Information - Ports

Parameter Description

Port Status Displays the current state of this port within the spanning tree:

No Link There is no valid link on the port.

Disabled Port has been disabled by the user or has failed

diagnostics.

Blocked Port receives STA configuration messages, but

does not forward packets.

Listening Port will leave blocking state due to topology

change, starts transmitting configuration messages, but does not yet forward packets.

Learning Has transmitted configuration messages for an

interval set by the Forward Delay parameter without receiving contradictory information. Port address table is cleared, and the port begins learning addresses.

Forwarding The port forwards packets, and continues learning

addresses.

The rules defining port status are:

• A port on a network segment with no other STAcompliant bridging device is always forwarding.

• If two ports of a switch are connected to the same segment and there is no other STA device attached to this segment, the port with the smaller ID forwards packets and the other is blocked.

• All ports are blocked when the switch is booted, then some of them change state to listening, to learning, and then to forwarding.

Forward Transitions The number of times the port has changed status to forwarding

state.

Designated Cost The cost for a packet to travel from this port to the root in the

current spanning tree configuration. The slower the media, the higher the cost.

DNswitch 800 Configuring and Monitoring the Switch 23

Spanning Tree Configuration

The following figures and tables describe Bridge STA configuration.

Switch

Figure 3-15. STA Configuration - Switch

Designated Bridge The priority and MAC address of the device through which this

port must communicate to reach the root of the spanning tree.

Designated Port The priority and number of the port on the designated bridging

device through which this switch must communicate with the root of the spanning tree.

Parameter Default Description

Usage Enabled Enable this parameter to participate in an STA-

compliant network.

Priority 32,768 Device priority is used in selecting the root device,

root port, and designated port. The device with the highest priority becomes the STA root device. (Remember that the lower the numeric value, the higher the priority.) However, if all devices have the same priority, the device with the lowest MAC address will then become the root device.

Range: 0 - 65535

Parameter Description

24 Configuring and Monitoring the Switch DNswitch 800

When the Switch Becomes Root

Figure 3-16. STA Configuration - When the Switch Becomes Root

Parameter Default Description

Hello Time 2 The time interval (in seconds) at which the root

device transmits a configuration message.

The minimum value is 1. The maximum value is the lower of 10 or [(Max. Message Age / 2) -1].

Max (Message) Age 20 The maximum time (in seconds) a device can

wait without receiving a configuration message before attempting to reconfigure. All device ports (except for designated ports) should receive configuration messages at regular intervals. Any port that ages out STA information (provided in the last configuration message) becomes the designated port for the attached LAN. If it is a root port, a new root port is selected from among the device ports attached to the network.

The minimum value is the higher of 6 or [2 x (Hello Time + 1)]. The maximum value is the lower of 40 or [2 x (Forward Delay - 1)].

Forward Delay 15 The maximum time (in seconds) the root device

will wait before changing states (i.e., listening to learning to forwarding). This delay is required because every device must receive information about topology changes before it starts to forward frames. In addition, each port needs time to listen for conflicting information that would make it return to a blocking state; otherwise, temporary data loops might result.

Maximum value is 30. Minimum value is the higher of 4 or [(Max. Message Age / 2) + 1].

DNswitch 800 Configuring and Monitoring the Switch 25

STA Port Configuration

The following figure and table describe STA configuration for ports.

Figure 3-17. STA Port Configuration

Parameter Default Description

Fast forwarding mode ENABLED Allows you to enable or disable fast forwarding for

all ports on the switch.

Priority 128 Defines the priority for the use of a port in the STA

algorithm. If the path cost for all ports on a switch are the same, the port with the highest priority (i.e., lowest value) will be configured as an active link in the spanning tree. Where more than one port is assigned the highest priority, the port with lowest numeric identifier will be enabled.

The range is 0 - 255.

(Path) Cost 100/19/4 This parameter is used by the STA algorithm to

determine the best path between devices. Therefore, lower values should be assigned to ports attached to faster media, and higher values assigned to ports with slower media.

The default and recommended range is:

Standard Ethernet: 100 (50-600) Fast Ethernet: 19 (10-60) Gigabit Ethernet: 4 (3-10) The full range is 1 - 65535.

Note: Path cost takes precedence over port priority.

26 Configuring and Monitoring the Switch DNswitch 800

Configuring Bridge MIB Extensions

The Bridge MIB includes extensions for managed devices that support Traffic Classes, Multicast Filtering and Virtual LANs. To configure these extensions, use the Extended Bridge Configuration screen as shown below:

Bridge Capability

Figure 3-18. Bridge Capability

FastForwarding ENABLED This parameter is used to enable/disabled the

Fast Spanning Tree mode for the port. In this mode, ports skip the Blocked, Listening and Learning states and proceed straight to Forwarding.

FastForwarding enables end-node workstations and servers to overcome time-out problems when the Spanning Tree Algorithm is implemented in a network. Therefore, FastForwarding should only be enabled for ports that are connected to an endnode device.

Parameter Description

Extended Multicast Filtering Services

Indicates that the switch does not support the filtering of individual multicast addresses based on GMRP (GARP Multicast Registration Protocol). Note that this function is not implemented in the current firmware release.

Traffic Classes Indicates that the switch provides mapping of user priorities to

multiple traffic classes. (Refer to the Priority menu on page 28.)

Static Entry Individual Port

Indicates that the switch allows the static filtering of unicast and multicast addresses. (Refer to the Address Table Configuration on page 19.)

Configurable PVID Tagging

Indicates that the switch allows you to override the default PVID setting (Port VLAN ID used in frame tags) and its egress status (VLAN-Tagged or Untagged) on each port. (Refer to VLAN Port Configuration on page 36.)

Local VLAN Capable

This switch does not support multiple local bridges (that is, multiple Spanning Trees).

Parameter Default Description

DNswitch 800 Configuring and Monitoring the Switch 27

Bridge Settings

Figure 3-19. Bridge Settings

Parameter Description

Traffic Class* Multiple traffic classes are supported by this switch as indicated

under Bridge Capabilities. However, you can disable this function by clearing this checkbox.

VLAN Learning As default this switch uses Shared VLAN Learning (SVL),

whereby all ports share one VLAN filtering database. However, you can set the switch to use Independent VLAN Learning (IVL), where each port maintains its own filtering database.

Note that when you change from one method to the other, the switch will automatically reset and the current VLAN configuration will be lost.

GMRP* GARP Multicast Registration Protocol (GMRP) allows network

devices to register endstations with multicast groups. Note that this function is not implemented in the current firmware release.

The Internet Group Management Protocol (IGMP) is currently used by this switch to provide automatic multicast filtering.

GVRP* GARP VLAN Registration Protocol (GVRP) defines a way for

switches to exchange VLAN information in order to register necessary VLAN members on ports across the network. This function should be enabled to permit VLANs groups which extend beyond the local switch.

* Not implemented in the current firmware release.

28 Configuring and Monitoring the Switch DNswitch 800

Priority

IEEE 802.1p defines up to 8 separate traffic classes. This switch supports Quality of Service (QoS) by using two priority queues, with weighted fair queuing for each port. You can use the Priority menu to configure the default priority for each port, or to display the mapping for the traffic classes as described in the following sections.

Port Priority Configuration

The default priority for all ingress ports is zero. Therefore, any inbound frames that do not have priority tags will be placed in the low priority output queue. Default priority is only used to determine the output queue for the current port; no priority tag is actually added to the frame. You can use the Port Priority Configuration screen to adjust default priority for any port as shown below:

Figure 3-20. Port Priority Configuration

Parameter Description

Port Numeric identifier for switch port.

Default Ingress User Priority

Default priority can be set to any value from 0-7, where 0-3 specifies the low priority queue and 4-7 specifies the high priority queue.

Number of Egress Traffic Classes

Indicates that this switch supports two priority output queues.

DNswitch 800 Configuring and Monitoring the Switch 29

Port Traffic Class Information

This switch provides two priority levels with weighted fair queuing for port egress. This means that any frames with a default or user priority from 03 are sent to the low priority queue “0” while those from 4-7 are sent to the high priority queue “1” as shown in the following screen:

Figure 3-21. Port Traffic Class Information

Parameter Description

Port Numeric identifier for switch port.

User Priority Shows that user priorities 0-3 specify the low priority queue and

4-7 specify the high priority queue.

30 Configuring and Monitoring the Switch DNswitch 800

VLAN Management

Use the VLAN Management screen to define which VLAN has management access to the switch. Parameters shown on this screen are indicated in the following figure and table.:

Figure 3-22. VLAN Management

Parameter Default Description

CPU Join VLAN All Select ALL to give all VLANs access to switch

management, or ONE to restrict access to a specified VLAN. If you select just one VLAN, you must specify its VLAN ID on the following line.

VLAN ID 1 Specifies the VLAN ID that has access to switch

management.

DNswitch 800 Configuring and Monitoring the Switch 31

Configuring Virtual LANs

You can use the VLAN configuration menu to assign any port on the switch to any of up to 256 LAN groups. In conventional networks with routers, broadcast traffic is split up into separate domains. Switches do not inherently support broadcast domains. This can lead to broadcast storms in large networks that handle a lot of IPX and NetBeui traffic. By using IEEE 802.1Q compliant VLANs and GARP VLAN Registration Protocol, you can organize any group of network nodes into separate broadcast domains, confining broadcast traffic to the originating group. This also provides a more secure and cleaner network environment. For more information on how to use VLANs, refer to “Virtual LANs” in the DNswitch 800 Management Guide. The VLAN configuration screens are described in the following sections.

VLAN Basic Information

The VLAN Basic Information screen displays basic information on the VLAN type supported by this switch.

Figure 3-23. VLAN Basic Information

Parameter Description

VLAN Version Number

The VLAN version used by this switch as specified in the IEEE

802.1Q standard.

MAX VLAN ID Maximum VLAN ID recognized by this switch.

MAX Supported VLANs

Maximum number of VLANs that can be configured on this switch.

Current Number of VLANs Configured

The number of VLANs currently configured on this switch.

32 Configuring and Monitoring the Switch DNswitch 800

VLAN Current Table

This screen shows the current port members of each VLAN and whether or not the port supports VLAN tagging. Ports assigned to a large VLAN group that crosses several switches should use VLAN tagging. However, if you just want to create a small port-based VLAN for one or two switches, you can assign ports to the same untagged VLAN (page 36). The current configuration is shown in the following screen.

Figure 3-24. VLAN Current Table

Parameter Description

VLAN Entry Delete Count

The number of times a VLAN entry has been deleted from this table.

VLAN ID The ID for the VLAN currently displayed.

Up Time at Creation The value of sysUpTime (System Up Time) when this VLAN

was created.

Status Shows how this VLAN was added to the switch:

Dynamic GVRP: Automatically learned via GVRP. Permanent: Added as a static entry.

Egress Ports Shows the ports which have been added to the displayed VLAN

group.

Untagged Ports Shows the untagged VLAN port members.

DNswitch 800 Configuring and Monitoring the Switch 33

VLAN Static List

Use this screen to create or remove VLAN groups.

Figure 3-25. VLAN Static List

VLAN Static Table

Use this screen to modify the settings for an existing VLAN. You can add/ delete port members for a VLAN, disable or enable VLAN tagging for any port, or prevent a port from being automatically added to a VLAN via the GVRP protocol. (Note that VLAN1 is fixed as an untagged VLAN containing all ports on the switch, and cannot be modified via this screen.)

Figure 3-26. VLAN Static Table - Add/Modify VLAN

Parameter Description

Current Lists all the current VLAN groups created for this system. Up to

256 VLAN groups can be defined. To allow this switch to participate in external VLAN groups, you must use the VLAN ID for the concerned external groups.

New Allows you to specify the name and numeric identifier for a new

VLAN group. (The VLAN name is only used for management on this system; it is not added to the VLAN tag.)

Status Enables/disables the specified VLAN.

Add Adds a new VLAN group to the current list.

Remove Removes a VLAN group from the current list. If any port is

assigned to this group as untagged, it will be reassigned to VLAN group 1 as untagged.

Parameter Description

VLAN The ID for the VLAN currently displayed.

Range: 1-2048

Name A user-specified symbolic name for this VLAN.

String length: 8 alphanumeric characters

Status Enables/disables the specified VLAN.

34 Configuring and Monitoring the Switch DNswitch 800

Use the screens shown below to assign ports to the specified VLAN group as an IEEE 802.1Q tagged port. Assign ports as tagged if they are connected to 802.1Q VLAN compliant devices. If the port is connected to VLAN-unaware devices, frames will passed to the untagged VLAN group this port has been assigned to under VLAN Port Configuration (page 36).

Figure 3-27. VLAN Static Table - Port Assignment

Parameter Description

Egress Ports Adds ports to the specified VLAN.

Forbidden Egress Ports

Prevents a port from being automatically added to this VLAN via GVRP.

Untagged Ports Adds untagged ports to the specified VLAN.

DNswitch 800 Configuring and Monitoring the Switch 35

VLAN Static Membership by Port

Use the screen shown below to assign VLAN groups to the selected port. To perform detailed port configuration for a specific VLAN, use the VLAN Static Table (page 33).

Figure 3-28. VLAN Static Membership by Port

Parameter Description

Port Number Port number on the switch selected from the upper display

panel.

Add/Remove Add or remove selected VLAN groups for the port indicated in

the Port Number field.

36 Configuring and Monitoring the Switch DNswitch 800

VLAN Port Configuration

Use this screen to configure port-specific settings for IEEE 802.1Q VLAN features.

Figure 3-29. VLAN Port Configuration

Parameter Description

PVID The VLAN ID assigned to untagged frames received on this

port. Use the PVID to assign ports to the same untagged VLAN.

Acceptable Frame Type

This switch accepts “All” frame types, including VLAN tagged or VLAN untagged frames. Note that all VLAN untagged frames received on this port are assigned to the PVID for this port.

Ingress Filtering

If set to “True,” incoming frames for VLANs which do not include this port in their member set will be discarded at the inbound port.

GVRP Status

Enables or disables GVRP for this port. When disabled, any GVRP packets received on this port will be discarded and no GVRP registrations will be propagated from other ports.

Note that GVRP must be enabled for the switch before this port setting can take effect. (See Configuring Bridge MIB Extensions on page 26.)

GVRP Failed Registrations

The total number of failed GVRP registrations, for any reason, on this port.

GVRP Last PDU Origin

The Source MAC Address of the last GVRP message received on this port.

This control does not affect VLAN independent BPDU frames, such as GVRP or STP. However, it does affect VLAN dependent BPDU frames, such as GMRP.

Note that GVRP is not implemented in the current firmware release.

DNswitch 800 Configuring and Monitoring the Switch 37

IGMP Multicast Filtering

Multicasting is used to support real-time applications such as video conferencing or streaming audio. A multicast server does not have to establish a separate connection with each client. It merely broadcasts its service to the network, and any hosts which want to receive the multicast register with their local multicast switch/router. Although this approach reduces the network overhead required by a multicast server, the broadcast traffic must be carefully pruned at every multicast switch/router it passes through to ensure that traffic is only passed on the hosts which subscribed to this service.

This switch uses IGMP (Internet Group Management Protocol) to query for any attached hosts who want to receive a specific multicast service. The switch looks up the IP Multicast Group used for this service and adds any port which received a similar request to that group. It then propagates the service request on to any neighboring multicast switch/router to ensure that it will continue to receive the multicast service. (For more information, see “IP Multicast Filtering” in the DNswitch 800 Management Guide.)

Configuring IGMP

This protocol allows a host to inform its local switch/router that it wants to receive transmissions addressed to a specific multicast address group. Use the IGMP Configuration screen to set key parameters for multicast filtering as shown below.

Figure 3-30. IGMP Configuration

Parameter Description

IGMP Status If enabled, the switch will monitor network traffic to determine

which hosts want to receive multicast traffic.

Act as IGMP Querier

If enabled, the switch can serve as the “querier,” which is responsible for asking hosts if they want to receive multicast traffic. (Not available for the current firmware release.)

IGMP Query Count The maximum number of queries issued for which there has

been no response before the switch takes action to solicit reports. (Range: 2 - 10.)

IGMP Report Delay The time (in seconds) between receiving an IGMP Report for an

IP multicast address on a port before the switch sends an IGMP Query out that port and removes the entry from its list. (Range: 5 - 30.)

Note: The default values are indicated in the sample screen.

38 Configuring and Monitoring the Switch DNswitch 800

Multicast Router Port Information

You can use the Multicast Router Port Information screen to display the ports on this switch that are attached to a neighboring multicast router/ switch for each VLAN ID.

Figure 3-31. Multicast Router Port Information

Parameter Description

VLAN ID The VLAN ID assigned to the multicast group in the displayed

port list.

Multicast Router Port List

The list of switch ports that are attached to a neighboring multicast router/switch.

DNswitch 800 Configuring and Monitoring the Switch 39

Static Multicast Router Port Configuration

You can use the Static Multicast Router Port Configuration screen to assign ports that are attached to a neighboring multicast router/switch.

Figure 3-32. Static Multicast Router Port Configuration

Parameter Description

Current A list of the switch ports that have been manually configured as

being attached to a neighboring multicast router/switch.

VLAN ID The VLAN ID assigned to the multicast group that is to be added/

removed from the list.

Port The port number of a port to be added/removed from the list.

Add Adds a new router port to the current list.

Remove Removes a router port from the current list.

40 Configuring and Monitoring the Switch DNswitch 800

IGMP Member Port Table

You can use the IGMP Member Port Table screen to assign ports that are attached to hosts who want to receive a specific multicast service.

Figure 3-33. IGMP Member Port Table

Parameter Description

IGMP Member Port List

The current switch ports that are listed as being attached to a IGMP host.

VLAN ID The VLAN ID assigned to this multicast group.

Multicast IP The IP address of a specific multicast service requested by the

host.

Port The port number of a port to be added/removed from the list.

Add Adds a new host port to the current list.

Remove Removes a host port from the current list.

DNswitch 800 Configuring and Monitoring the Switch 41

IP Multicast Registration Table

Use the IP Multicast Registration Table to display all the multicast groups active on this switch, including multicast IP addresses and the corresponding VLAN ID.

Figure 3-34. IP Multicast Registration Table

Parameter Description

VLAN ID VLAN ID assigned to this multicast group.

Multicast IP Address

IP address for specific multicast services.

Learned by Indicates the manner in which this address was learned:

dynamic or IGMP.

Multicast Group Port List

The switch ports registered for the indicated multicast service.

42 Configuring and Monitoring the Switch DNswitch 800

Port Menus

Port Information

The Port Information screen displays the port status, link state, the communication speed and duplex mode, as well as the flow control and

802.1Q Trunk status. To change any of the port settings, use the Port Configuration menu. The parameters shown in the following figure and table are for the RJ-45 ports.

Figure 3-35. Port Information

Parameter Description

Admin Status Shows if the port is enabled or not.

Link Status Indicates if the port has a valid connection to an external device.

Speed Status Shows the port speed (1000M).

Duplex Status Displays the current duplex mode.

Flow Control Status Shows the flow control type in use. Flow control can eliminate

frame loss by “blocking” traffic from end stations connected directly to the switch. Back pressure is used for half duplex and IEEE 802.3x for full duplex.

802.1Q Trunk Status

Shows the VLAN trunk status for the port. A VLAN Trunk link between two VLAN-aware switches will carry traffic from all VLANs, allowing VLAN tagged frames to maintain their VLAN ID across multiple switches. When enabled, a port joins all configured VLANs and the untagged port VLAN ID (PVID) is set to 4000, a reserved VLAN ID for trunk ports.

DNswitch 800 Configuring and Monitoring the Switch 43

Port Configuration

Use the Port Configuration menus to configure any port on the switch.

Figure 3-36. Port Configuration

Parameter Default Description

Flow Control Mode Enabled Allows you to enable or disable flow control for all

ports on the switch.

Admin Status Enable Allows you to disable a port due to abnormal

behavior (e.g., excessive collisions), and then reenable it after the problem has been resolved. You may also disable a port for security reasons.

Duplex Status Auto-

Negotiation

Used to set the current port duplex mode or autonegotiation. The default is auto-negotiation.

Flow Control status Enabled Used to enable or disable flow control. Flow

control can eliminate frame loss by “blocking” traffic from end stations or segments connected directly to the switch when its buffers fill. Back pressure is used for half duplex and IEEE 802.3x for full duplex. Note that flow control should not be used if a port is connected to a hub.

802.1Q Trunk Status Disabled Used to enable/disable the VLAN trunk status for the port. A VLAN Trunk link between two VLANaware switches will carry traffic from all VLANs, allowing VLAN tagged frames to maintain their VLAN ID across multiple switches. When enabled, a port joins all configured VLANs and the untagged port VLAN ID (PVID) is set to 4000, a reserved VLAN ID for trunk ports.

44 Configuring and Monitoring the Switch DNswitch 800

Port Broadcast Storm Protect Configuration

Use the Port Broadcast Storm Protect Configuration screen to configure broadcast storm control for any port on the switch.

Figure 3-37. Port Broadcast Storm Protect Configuration

Parameter Default Description

Broadcast Storm Protect Mode

Enabled Allows you to enable/disable broadcast storm

control for all ports on the switch.

Protect Status Enabled Enables/disables broadcast control for the port.

When enabled, the switch will employ a broadcast-control mechanism if the packet-persecond threshold is exceeded. This mechanism limits the amount of broadcasts passed by the port to half of the received packet-per-second count. The control mechanism remains in effect until the number of received broadcasts falls back below the packet-per-second threshold.

Threshold 500 The packet-per-second threshold at which

broadcast control will be employed on the port.

DNswitch 800 Configuring and Monitoring the Switch 45

Port Security Configuration

Use the Port Security Configuration screen to enable and configure port security for the switch. Port Security allows you to configure each port with a list of MAC addresses of devices that are authorized to access the network through that port.

Figure 3-38. Port Security Configuration

Parameter Description

Port Number The port number on the unit.

Status Port security can set to three states; Enabled, Disabled, or

Learning. When set to Enabled, the switch will drop packets from the port if the source MAC address does not match one of the addresses in the MAC Address list. If set to Learning, the switch will use the last valid source address to filter packets from the port.

MAC Address List A list of the current authorized MAC addresses that can access

the network through the specified port.

MAC Address A specific MAC address to be added or deleted from the list. A

MAC address must be entered as 12 hexadecimal digits in the format “000000-000000” or “000000000000” to be correctly accepted by the system.

Add Adds a new MAC address to the current list.

Remove Removes a MAC address from the current list.

Clear All Clears all the MAC addresses for the current port.

46 Configuring and Monitoring the Switch DNswitch 800

Using a Port Mirror for Analysis

You can mirror traffic from any source port to a target port for real-time analysis. You can then attach a logic analyzer or RMON probe to the target port and study the traffic crossing the source port in a completely unobtrusive manner. When mirroring port traffic, note that the target port must be configured in the same VLAN and be operating at the same duplex mode as the source port (see VLAN Static List on page 33).

You can use the port mirror configuration screen to designate a single port pair for mirroring as shown below:

Figure 3-39. Mirror Port Configuration

Parameter Description

Status Enables/disables port mirroring.

Mirror Source Port The port whose traffic will be monitored.

Mirror Target Port The port that will duplicate or “mirror” all the traffic happening on

the monitored port.

DNswitch 800 Configuring and Monitoring the Switch 47

Port Trunk Configuration

Port trunks can be used to increase the bandwidth of a network connection or to ensure fault recovery. You can configure up four trunk connections (combining 2-4 ports into a fat pipe) between any two DNswitch 800 switches. However, before making any physical connections between devices, use the Trunk Configuration menu to specify the trunk on the devices at both ends. When using a port trunk, note that:

• Ports can only be assigned to one trunk.

• The ports at both ends of a connection must be configured as trunk

ports.

• The ports at both ends of a trunk must be configured in an identical

manner, including duplex mode and VLAN assignments.

• None of the ports in a trunk can be configured as a mirror source port

or mirror target port.

• All the ports in a trunk have to be treated as a whole when moved

from/to, added or deleted from a VLAN.

• The Spanning Tree Algorithm will treat all the ports in a trunk as a

whole.

• Enable the trunk prior to connecting any cable between the switches

to avoid creating a loop.

• Disconnect all trunk port cables or disable the trunk ports before

removing a port trunk to avoid creating a loop.

48 Configuring and Monitoring the Switch DNswitch 800

Use the Port Trunking Configuration screen to set up port trunks as shown below:

Figure 3-40. Port Trunk Configuration

Parameter Description

Trunk Number A unique identifier for this trunk. You can configure up to four

trunks per switch.

Port The port members of this trunk. Select from 2-4 ports per trunk.

DNswitch 800 Configuring and Monitoring the Switch 49

Port Statistics

Use the Port Statistics menu to display Etherlike or RMON statistics for any port on the switch. Select the required port. The statistics displayed are indicated in the following figure and table.

Etherlike Statistics

Etherlike Statistics display key statistics from the Ethernet-like MIB for each port. Error statistics on the traffic passing through each port are displayed. This information can be used to identify potential problems with the switch (such as a faulty port or unusually heavy loading). Values displayed have been accumulated since the last system reboot.

Figure 3-41. Etherlike Statistics

Parameter Description

Alignment Errors The number of frames received that are not an integral number

of octets in length and do not pass the FCS check.

FCS Errors The number of frames received that are an integral number of

octets in length but do not pass the FCS check.

Single Collision Frames*

The number of successfully transmitted frames for which transmission is inhibited by exactly one collision.

Multiple Collision Frames*

A count of successfully transmitted frames for which transmission is inhibited by more that one collision.

SQE Test Errors* A count of times that the SQE TEST ERROR message is

generated by the PLS sublayer.

Deferred Transmissions*

A count of frames for which the first transmission attempt on a particular interface is delayed because the medium was busy.

Late Collisions The number of times that a collision is detected later than 512

bit-times into the transmission of a packet.

Excessive Collisions*

The number of frames for which transmission failed due to excessive collisions.

Internal Mac Transmit Errors*

The number of frames for which transmission failed due to an internal MAC sublayer transmit error.

Carrier Sense Errors*

The number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame.

Frames Too Long The number of frames received that exceed the maximum

permitted frame size.

Internal Mac Receive Errors*

The number of frames for which reception failed due to an internal MAC sublayer receive error.

* The reported values will always be zero because these statistics are not supported by the internal chip set.

50 Configuring and Monitoring the Switch DNswitch 800

RMON Statistics

RMON Statistics display key statistics for each port from RMON group 1. (RMON groups 2, 3 and 9 can only be accessed using SNMP management software.) The following screen displays overall statistics on traffic passing through each port. RMON statistics provide access to a broad range of statistics, including a total count of different frame types passing through each port. Values displayed have been accumulated since the last system reboot.

Figure 3-42. RMON Statistics

Parameter Description

Drop Events The total number of events in which packets were dropped due

to lack of resources.

Received Bytes Total number of bytes of data received on the network. This

statistic can be used as a reasonable indication of Ethernet utilization.

Received Frames The total number of frames (bad, broadcast and multicast)

received.

Broadcast Frames The total number of good frames received that were directed to

the broadcast address. Note that this does not include multicast packets.

Multicast Frames The total number of good frames received that were directed to

this multicast address.

CRC/Alignment Errors

The number of frames received with CRC/alignment errors (FCS or alignment errors).

Undersize Frames The total number of frames received that were less than 64

octets long (excluding framing bits, but including FCS octets) and were otherwise well formed.

Oversize Frames The total number of frames received that were longer than 1518

octets (excluding framing bits, but including FCS octets) and were otherwise well formed.

Fragments The total number of frames received that were less than 64

octets in length (excluding framing bits, but including FCS octets) and had either an FCS or alignment error.

Jabbers The total number of frames received that were longer than 1518

octets (excluding framing bits, but including FCS octets), and had either an FCS or alignment error.

DNswitch 800 Configuring and Monitoring the Switch 51

Collisions The best estimate of the total number of collisions on this

Ethernet segment.

64 Byte Frames The total number of frames (including bad packets) received

and transmitted that were 64 octets in length (excluding framing bits but including FCS octets).

65-127 Byte Frames

The total number of frames (including bad packets) received and transmitted that were between 65 and 127 octets in length inclusive (excluding framing bits but including FCS octets).

128-255 Byte Frames

The total number of packets (including bad packets) received and transmitted that were between 128 and 255 octets in length inclusive (excluding framing bits but including FCS octets).

256-511 Byte Frames

The total number of packets (including bad packets) received and transmitted that were between 256 and 511 octets in length inclusive (excluding framing bits but including FCS octets).

512-1023 Byte Frames

The total number of packets (including bad packets) received and transmitted that were between 512 and 1023 octets in length inclusive (excluding framing bits but including FCS octets).

1024-1518 Byte Frames

The total number of packets (including bad packets) received and transmitted that were between 1024 and 1518 octets in length inclusive (excluding framing bits but including FCS octets).

Parameter Description

52 Configuring and Monitoring the Switch DNswitch 800

DNswitch 800 Troubleshooting 53

APPENDIX A. TROUBLESHOOTING

This appendix describes problems potentially encountered when using Digital Networks WebView and presents suggested solutions for correcting these problems.

Troubleshooting

Cannot Connect to the Switch

If you attempt to connect to the switch and the main window does not appear, make sure that the correct IP address is entered in the URL field of the browser.

• Check the network connections of both your workstation and the switch.

• Try to Ping the IP address to see If it’s indeed reachable.

• Set the IP gateway if necessary.

• Make sure the correct password is entered.

• Make sure the HTTP Server parameter is set to “ENABLED.”

System is Disconnected from the Switch

If your workstation is disconnected from the switch during an active session, you may see the following messages:

or, “Device is not responding to SNMP queries”

• Reconnect the workstation to the switch. You may need to re-enter your latest changes, but the user interface should become available again for use.

• If the user interface does not become available after reconnecting, close the Digital Networks WebView window and start a new session.

54 Troubleshooting DNswitch 800

Frequently Asked Questions

Can I Open More Than One Window for Same Switch?

Yes. You can start multiple browser sessions with the switch at once.

Will Network Congestion Prevent Use of Digital Networks

WebView?

It could. If there is significant network delay after a configuration command is issued, the system could time out. In addition, excessive delays when gathering switch statistics could interfere with the accuracy of performance statistics.

How Do I Confirm a Successful Software Download?

After the download is complete, go to the Switch Information screen to verify that the software version running on the switch is the same as the software just upgraded. If the version has not been upgraded, retry the procedure.

DNswitch 800 Index 1

INDEX

address table, static unicast, 19 Administrator password, setting, 4, 15 aging time of address table, 19 Apply button, 8

BootP configuration, 12 bridge capability, 26 bridge MIB extensions, 26 buttons, configuration, 8

community strings, configuring, 13 configuration options, 8 configuration, basic, 3 conventions in the User Guide, 2

default gateway, setting, 4 Digital Networks WebView

starting and stopping, 5 user interface, 6

features of WebView, 1 firewalls, problems with, 1 firmware upgrade

TFTP download, 17

Web upload, 16 firmware version, 11 frequently asked questions, 54 front panel components, 7

hardware version, 11 help button, 8 hierarchy of screens, 9 HTTP server, enabling, 3

IGMP, 37 image of front panel, 7

Internet connection, 1 IP address

of a router, 4 setting, 3

IP configuration, 12

MAC address of agent, 12 main boad information, 11 main menu, description, 7 management

basic configuration, 3 enabling the HTTP server, 5 firmware upgrades, 16 using SNMP, 13

Web help, 8 MIB extensions, configuring, 26 mirror port configuration, 46 multicast filtering, configuring, 37

navigating the user interface, 6 network congestion problems, 1 network management station access, 13

option buttons, 8 overview of screen hierarchy, 9

password configuration, 15 Ping. using for troubleshooting, 53 port

configuration, 43, 44

information, 42

mirror, 46

statistics, 49

trunking, 47 priority

port configuration, 28

traffic class, 29 problems

firewalls, 1

network congestion, 1

troubleshooting, 53

2 Index DNswitch 800

Quality of Service (QoS), 28

Refresh button, 8 requirements of system, 1 restoring switch configuration, 18 Revert button, 8 RMON probes and mirror ports, 46

screen hierarchy, 9 security configuration, 15 Select button, 8 serial number of main board, 11 SNMP

community, 13

configuration, 13 sofware upgrades, 16 spanning tree algorithm, 20 statistics

Etherlike, 49

RMON, 50 switch information, 11 system

information, 10

requirements, 1

tagging, VLAN, 32, 34 TCP/IP, 1 Telnet sessions, maximum number of, 12 Trap destinations, setting, 4 trap managers, configuring, 14 Traps, enabling, 14 troubleshooting, 53 trunks, configuring, 47

upgrading firmware, 16 user authentication, 4 user interface, description, 6

VLAN

static list, 33 static membership by port, 35 static table, 33 tagging, 32

VLAN configuration, 31

Web access, 5 Web browser requirements, 1 Web management

enabling, 5 setting up, 3

150xxx-10x R01

WM-DSA8G-00

Digital Networks

Digital Networks DNswitch 800 Web Management Manual

Specifications and Main Features

Frequently Asked Questions

User Manual