Cabletron Systems NB30 User Manual

Title Page

NB30

User’s Guide

Notice

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Order Number: 9031607-03 April 1999

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iii

iv

Chapter 1 Introduction

Using the NB-30 Bridge UserÕs Guide ....................................................................... 1-1

Related Manuals............................................................................................................ 1-2

Software Conventions .................................................................................................. 1-3

Using the Mouse ....................................................................................................1-3

Common NB-30 Bridge Window Fields............................................................. 1-4

Using Window Buttons......................................................................................... 1-5

Getting Help .................................................................................................................. 1-6

Using On-line Help................................................................................................ 1-6

Accessing On-line Documentation...................................................................... 1-6

Getting Help from the Cabletron Systems Global Call Center .......................1-7

NB-30 Bridge Firmware ...............................................................................................1-7

Contents

Chapter 2 The NB-30 Bridge Chassis View

Viewing Chassis Information...................................................................................... 2-2

Front Panel Information........................................................................................ 2-3

Menu Structure....................................................................................................... 2-4

The NB-30 Bridge Port Status Display................................................................ 2-6

Chassis Manager .................................................................................................... 2-6

Viewing Hardware Types .....................................................................................2-7

Managing the Bridge .................................................................................................... 2-7

Setting the Device Date and Time ....................................................................... 2-8

Enabling and Disabling Bridging ........................................................................ 2-9

Chapter 3 NB-30 Bridging

Bridging Basics .............................................................................................................. 3-1

About Transparent Bridging ................................................................................ 3-2

Viewing and Managing Bridging Interfaces...................................................... 3-2

Bridge Status.................................................................................................................. 3-3

Accessing Bridge Status Window Options......................................................... 3-8

Enabling and Disabling Bridging ...............................................................................3-8

Bridge Statistics ............................................................................................................. 3-9

Performance Graphs.............................................................................................. 3-9

ConÞguring Performance Graphs.............................................................. 3-12

Bridge Summary Statistics.................................................................................. 3-13

Ethernet and Remote Port Statistics.................................................................. 3-14

Port Packet Statistics .................................................................................... 3-16

Ethernet and Remote Port Problem Statistics........................................... 3-16

v

Contents

Index

Ethernet and Remote Port Packet Discarded Statistics ...........................3-17

Bridge Spanning Tree..................................................................................................3-17

Bridge Level Parameters .....................................................................................3-19

Bridge Port Level Parameters............................................................................. 3-21

ConÞguring Spanning Tree................................................................................. 3-22

Filtering Database .......................................................................................................3-24

ConÞguring the Filtering Database................................................................... 3-27

DSX-1 Summary ..........................................................................................................3-29

ConÞguring, Running, and Checking the Loopback Test .............................. 3-30

Viewing the T1 Link Channel Status................................................................. 3-31

Restoring Bridge Defaults.......................................................................................... 3-31

Resetting Bridge Counters .........................................................................................3-32

Restarting the Bridge ..................................................................................................3-32

vi

Chapter 1

Introduction

How to use this guide; related guides; software conventions; getting help; NB-30 Bridge firmware
version

Welcome to the SPECTRUM Element Manager for the NB-30 UserÕs Guide. We

have designed this guide to serve as a simple reference for using SPECTRUM

Element Manager for the NB-30 Bridge.

The NB-30 series bridge is a protocol-independent remote bridge that

transparently connects two remote Ethernet LAN segments via a DDS, full T1/E1,

or fractional T1 link. The bridge is fully compliant with the IEEE 802.1d Spanning

Tree Algorithm speciÞcation used when bridges are placed in parallel, and it uses

a source address table and Þltering database to Þlter or forward network trafÞc.

It is also equipped with two media-conÞgurable Single Port Interface Module

(SPIM) slots. One SPIM is required to connect the bridge to the network; the other

optional SPIM slot can be used to create a redundant link to a local network

segment. Performance capabilities include a source address table capable of

storing 8,191 addresses, a packet Þltering rate of up to 10,000 frames per second,

and a forwarding rate of up to 2,900 frames per second (or 3,800 frames if set up

for full duplex operation).

Using the NB-30 Bridge User’s Guide

Each chapter in this guide describes one major functionality or a collection of

several smaller functionalities of the NB-30 Bridge. This guide contains

information about software functions which are accessed directly from the device

icon; for information about management functions which are accessed via the

SPECTRUM Element Manager platform, consult the SPECTRUM Element

Manager UserÕs Guide or Tools Guide.

1-1

Introduction

Chapter 1, Introduction, provides a list of related documentation, describes
certain software conventions, and shows you how to contact Cabletron Systems
Technical Support.

Chapter 2, The NB-30 Bridge Chassis View, describes the visual display of the
NB-30 Bridge and explains how to use the mouse within the Chassis View; the
operation of several device-level management functions Ñ such as changing the
device display, enabling and disabling ports, and setting device date and time Ñ
is also described here.

Chapter 3, NB-30 Bridging, provides a comprehensive look at all management
options associated with the bridge, including the Bridge Status window, the
Bridge Performance Graphs, Bridge Port Statistics, DSX-1 Remote Port Setup,
Bridge Summary Statistics, Spanning Tree, Filtering Database, restore defaults,
reset counters, and restart bridge.

We assume that you have a general working knowledge of Ethernet IEEE 802.3
type data communications networks and their physical layer components, and
that you are familiar with general bridging concepts.

Related Manuals

The NB-30 Bridge userÕs guide is only part of a complete document set designed
to provide comprehensive information about the features available to you
through SPECTRUM Element Manager. Other guides which include important
information related to managing the NB-30 include:

Cabletron SystemsÕ SPECTRUM Element Manager UserÕs Guide

Cabletron SystemsÕ SPECTRUM Element Manager Tools Guide

Cabletron SystemsÕ SPECTRUM Element Manager Remote Administration Tools

UserÕs Guide

Cabletron SystemsÕ SPECTRUM Element Manager Alarm and Event Handling
UserÕs Guide

Cabletron SystemsÕ Network Troubleshooting Guide

Microsoft CorporationÕs Microsoft Windows UserÕs Guide

For more information about the capabilities of the NB-30 Bridge, consult the
appropriate hardware and local management documentation.

1-2 Related Manuals

Software Conventions

SPECTRUM Element ManagerÕs device user interface contains a number of

elements which are common to most windows and which operate the same

regardless of which window they appear in. A brief description of some of the

most common elements appears below; note that the information provided here is

not repeated in the descriptions of speciÞc windows and/or functions.

Using the Mouse

This document assumes you are using a Windows-compatible mouse with two

buttons; if you are using a three button mouse, you should ignore the operation of

the middle button when following procedures in this document. Procedures

within the SPECTRUM Element Manager document set refer to these buttons as

follows:

Introduction

Left Mouse Button

Right Mouse Button

Figure 1-1. Mouse Buttons

For many mouse operations, this document assumes that the left (primary) mouse

button is to be used, and references to activating a menu or button will not

include instructions about which mouse button to use.

However, in instances in which right (secondary) mouse button functionality is

available, instructions will explicitly refer to right mouse button usage. Also, in

situations where you may be switching between mouse buttons in the same area

or window, instructions may also explicitly refer to both left and right mouse

buttons.

Instructions to perform a mouse operation include the following terms:

¥ Pointing means to position the mouse cursor over an area without pressing

either mouse button.

¥ Clicking means to position the mouse pointer over the indicated target, then

press and release the appropriate mouse button. This is most commonly used
to select or activate objects, such as menus or buttons.

Software Conventions 1-3

Introduction

¥ Double-clicking means to position the mouse pointer over the indicated

target, then press and release the mouse button two times in rapid succession.

This is commonly used to activate an objectÕs default operation, such as

opening a window from an icon. Note that there is a distinction made between

Òclick twiceÓ and Òdouble-click,Ó since Òclick twiceÓ implies a slower motion.

¥ Pressing means to position the mouse pointer over the indicated target, then

press and hold the mouse button until the described action is completed. It is

often a pre-cursor to Drag operations.

¥ Dragging means to move the mouse pointer across the screen while holding

the mouse button down. It is often used for drag-and-drop operations to copy

information from one window of the screen into another, and to highlight

editable text.

Common NB-30 Bridge Window Fields

Similar descriptive information is displayed in boxes at the top of most
device-speciÞc windows in SPECTRUM Element Manager, as illustrated in

Figure 1-2, below.

Device
Description

MAC

IP Address

Figure 1-2. Sample Window Showing Informational Text Boxes

Device Description

Displays the SNMP MIB-II System Description for the bridge. This is a read-only
description used to identify the hardware type and Þrmware/software operating
system of the managed device.

Address

1-4 Software Conventions

Introduction

IP Address

Displays the deviceÕs IP (Internet Protocol) Address; this will be the IP address

used to deÞne the device icon. IP addresses are assigned via Local Management

for the NB-30; they cannot be changed via SPECTRUM Element Manager.

MAC Address

Displays the manufacturer-set MAC address of the port through which

SPECTRUM Element Manager is communicating with the NB-30 Bridge. This

address is factory-set and cannot be altered.

Up Time

Displays the amount of time, in a day(s) hh:mm:ss format, that the NB-30 Bridge

has been running since the last start-up.

Informational Þelds describing the ports being modeled are also displayed in

most windows:

Port Number

Displays the number of the monitored port.

Port Name

Displays the user-deÞned name of the port. You can change the port name via the

Port Name text box available from the Bridge Status window.

Using Window Buttons

The Cancel button that appears at the bottom of most windows allows you to exit

a window and terminate any unsaved changes you have made. You may also

have to use this button to close a window after you have made any necessary

changes and set them by clicking on an OK, Set, or Apply button.

An OK, Set, or Apply button appears in windows that have conÞgurable values;

it allows you to conÞrm and SET changes you have made to those values. In some

windows, you may have to use this button to conÞrm each individual set; in other

windows, you can set several values at once and conÞrm the sets with one click

on the button.

The Help button brings up a Help text box with information speciÞc to the

current window. For more information concerning Help buttons, see Getting

Help, below.

The command buttons, for example Bridge, call up a menu listing the windows,

screens, or commands available for that topic.

Any menu topic followed by ... (three dots) Ñ for example Statistics... Ñ calls up

a window or screen associated with that topic.

Software Conventions 1-5

Introduction

Getting Help

This section describes different methods of getting help for questions or concerns
you may have while using SPECTRUM Element Manager.

Using On-line Help

You can use the NB-30 Bridge window Help buttons to obtain information
speciÞc to the device. When you click on a Help button, a window will appear
which contains context-sensitive on-screen documentation that will assist you in
the use of the windows and their associated command and menu options. Note
that if a Help button is grayed out, on-line help has not yet been implemented for
the associated window.

From the Help menu accessed from the Chassis View window menu bar, you can
access on-line Help speciÞc to the Chassis View window, as well as bring up the
Chassis Manager window for reference. Refer to Chapter 2 for information on the
Chassis View and Chassis Manager windows.

All of the online help windows use the standard Microsoft Windows help facility. If you

NOTE

are unfamiliar with this feature of Windows, you can select Help from the Start menu,
Help Ñ>How to Use Help from the primary SPECTRUM Element Manager window,

or consult your Microsoft Windows product UserÕs Guide.

Accessing On-line Documentation

The complete suite of documents available for SPECTRUM Element Manager can
be accessed via a menu option available from the primary window menu bar:
HelpÑ>Online Documents. If you chose to install the documentation when you
installed SPECTRUM Element Manager, selecting this option will launch AdobeÕs
Acrobat Reader and a menu Þle which provides links to all other available
documents.

If you have not yet installed the documentation, the Online Documents option will not

TIP

be able to access the menu Þle; in order to activate this option, you must run the setup.exe
again to install the documentation component. See your UserÕs Guide for details.

1-6 Getting Help

Getting Help from the Cabletron Systems Global Call Center

If you need technical support related to SPECTRUM Element Manager, or if you

have any questions, comments, or suggestions related to this manual or any of

our products, please feel free to contact the Cabletron Systems Global Call Center

via one of the following methods:

By phone: [phone]

24 hours a day, 365 days a year

By mail: Cabletron Systems, Inc.

PO Box 5005
Rochester, NH 03866-5005

By Internet mail: [e-mail]

FTP: ftp.ctron.com (134.141.197.25)

Login anonymous
Password your email address

By BBS: [phone]

Introduction

Modem Setting 8N1: 8 data bits, 1 stop bit, No parity

For additional information about Cabletron Systems products, visit our

World Wide Web site: http://www.cabletron.com/. For technical support,

select Service and Support.

NB-30 Bridge Firmware

SPECTRUM Element Manager support for the NB-30 Bridge has been tested

against Þrmware versions up to 1.04.03 and later; if you have an earlier version of

Þrmware and experience problems, contact the Cabletron Systems Global Call

Center for upgrade information.

NB-30 Bridge Firmware 1-7

Introduction

1-8 NB-30 Bridge Firmware

Chapter 2

The NB-30 Bridge Chassis View

Information displayed in the Chassis View window; the logical chassis view; the Chassis Manager
window; bridge management functions

The NB-30 Bridge Chassis View window is the main screen that immediately

informs you of the current condition of individual ports on your bridge via a

graphical display. The Chassis View window also serves as a single point of access

to all other NB-30 Bridge windows and screens, which are discussed at length in

the following chapters.

To access the NB-30 Bridge Chassis View window, use one of the following

options;

Figure 2-1. NB-30 Bridge Icon

1. In any map, list, or tree view, double click on the NB-30 you wish to manage;

or

1. In any map, list, or tree vie w, double click the left mouse button once to select
the NB-30 you wish to manage.

2. Select Manage —> Node from the primary window menu bar, or select the
manage node toolbar button.

or

1. In any map, list, or tree view, double click the right mouse button once to
select the NB-30 you wish to manage.

2. On the resulting menu, click to select Manage.

2-1

The NB-30 Bridge Chassis View

Viewing Chassis Information

The NB-30 Bridge Chassis View window (Figure 2-2) provides a graphic
representation of the NB-30 Bridge, including a color-coded port display which
immediately informs you of the current status of bridging at each port.

Figure 2-2. NB-30 Bridge Chassis View Window

By clicking in designated areas of the chassis graphical display (as detailed later
in this chapter), or by using the menu bar at the top of the Chassis View window,
you can access all of the menus that lead to more detailed device and port-level
windows.

When you move the mouse cursor over a management Òhot spotÓ the cursor icon will

TIP

2-2 Viewing Chassis Information

change into a ÒhandÓ ( ) to indicate that clicking in the current location will bring up a
management option.

Front Panel Information

The areas surrounding the main port display area provide the following device
information:

IP

The Internet Protocol address assigned to the NB-30 appears in the title bar of the
Chassis View window; this will display the IP address you have used to create the
NB-30 icon. IP addresses are assigned via Local Management.

Connection Status

This color-coded area indicates the current state of communication between
SPECTRUM Element Manager and the NB-30 bridge.

¥ Green indicates the NB-30 bridge is responding to device polls (valid

connection).

¥ Magenta indicates that the NB-30 bridge is reconÞguring because of a change

in the Spanning Tree; note that board and port menus are inactive during this
stand-by state.

¥ Blue indicates an unknown contact status Ñ polling has not yet been

established with the NB-30 bridge.

The NB-30 Bridge Chassis View

¥ Red indicates the NB-30 bridge is not responding to device polls (device is off

line, or device polling has failed across the network for some other reason).

Up Time

The amount of time, in a day(s) hh:mm:ss format, that the NB-30 bridge has been
running since the last start-up.

Port Status

Displays the port status currently in effect. Management for the NB-30 supports
one port display, therefore this Þeld will state Default.

MAC

The physical layer address assigned to the port through which SPECTRUM
Element Manager is communicating with the NB-30 bridge. MAC addresses are
hard-coded in the device, and are not conÞgurable.

Boot Prom

The revision of BOOT PROM installed in the device. This Þeld will not be
available for the NB-30 bridge.

Firmware

The revision of device Þrmware stored in the NB-30 bridgeÕs FLASH PROMs.

Time

The current time, in a 24-hour hh:mm:ss format, set in the NB-30 bridgeÕs internal
clock.

Viewing Chassis Information 2-3

The NB-30 Bridge Chassis View

Date

The current date, in an mm/dd/yyyy format, set in the NB-30 BridgeÕs internal
clock.

You can set the date and time by using the Edit Device Date and Edit Device Time

NOTES

options on the Device menu; see Setting the Device Date and Time, page 2-8, for
details.

In accordance with Year 2000 compliance requirements, SPECTRUM Element Manager
now displays and allows you to set all dates with four-digit year values.

Menu Structure

By clicking on various areas of the NB-30 Bridge Chassis View display, you can
access menus with device- and port-level options, as well as utility applications
which apply to the device. The following illustration displays the menu structure
and indicates how to use the mouse to access the various menus:

Figure 2-3. NB-30 Bridge Chassis View Menu Structure

2-4 Viewing Chassis Information