Cabletron Systems NB30, NB30/LM User Manual

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Page 1

NB30/LM

LOCAL MANAGEMENT

FOR THE CABLETRON SYSTEMS

NB30 BRIDGE

USER’S MANUAL

CABLETRON SYSTEMS, P.O. BOX 5005, ROCHESTER, NH 03867-5005

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NOTICE

Cabletron Systems reserves the right to make changes in speciﬁcations and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made.

The hardware, ﬁrmware, or software described in this manual is subject to change without notice.

IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.

Cabletron Systems Inc. P.O. Box 5005, Rochester, NH 03867-5005

Order Number: 9030290 June 91

NB30/LMm NB30, SPIM-T, SPIM-T1, SPIM-F1, SPIM,F2, SPIM-C,

and

SPIM-A

DEC, LAN Bridge 100,

are trademarks of Cabletron Systems Inc.

and

are trademarks of Digital Equipment

Corporation.

Prime TransLAN

is a trademark of Prime Computer.

is a registered trademark of Vitalink Communications

Corporation.

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NOTICE

Page 5

CONTENTS

CHAPTER 1 INTRODUCTION

1.1 USING THIS MANUAL................................................................1-1

1.2 GETTING HELP..........................................................................1-2

1.3 NB30/LM LOCAL MANAGEMENT FOR THE CABLETRON

SYSTEMS NB30 .........................................................................1-2

1.4 RELATED MANUALS..................................................................1-3

CHAPTER 2 GETTING STARTED

2.1 TERMINAL CONFIGURATION...................................................2-1

2.1.1 VT200 or 300 Series Setup ............................................2-1

2.1.2 Prime 200 Series Setup..................................................2-2

2.2 CABLE CONFIGURATION..........................................................2-3

2.2.1 VT 200 or 300 Series......................................................2-3

2.2.2 Prime 200 Series ............................................................2-4

2.3 ACCESSING LOCAL MANAGEMENT........................................2-4

CHAPTER 3 USING LOCAL MANAGEMENT

FOR THE NB30

3.1 GENERAL SCREEN INFORMATION.........................................3-1

3.2 GENERAL TIPS ..........................................................................3-2

3.3 LOCAL MANAGEMENT MENU TREE........................................3-2

CHAPTER 4 BRIDGE INFORMATION SCREEN

4.1 THE BRIDGE INFORMATION SCREEN ....................................4-1

4.1.1 Selecting the Ethernet Port.............................................4-2

4.1.2 Bridge Information Screen Fields ...................................4-2

4.2 AVAILABILITY OPTIONS............................................................4-7

CHAPTER 5 USING BRIDGE MANAGEMENT OPTIONS

5.1 THE SETUP OPTION..................................................................5-2

5.1.1 Setup Option Screen Fields............................................5-3

5.1.2 Editing the Setup Screen Fields .....................................5-5

5.1.3 The Change Password Option...................................... 5-10

5.1.4 The Port Setup Option..................................................5-10

5.1.4.1 Port Setup Screen Fields .............................5-12

5.1.4.2 Setting the Default Enet Port Option............5-15

5.1.4.3 Setting the redundancy Option.....................5-16

5.1.4.4 The DSX-1 Setup Option..............................5-18

iii

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CONTENTS

5.2 THE SAVE NAMES OPTION.....................................................5-21

5.3 THE PORT COUNTERS OPTION.............................................5-22

5.3.1 The Bridge Counters Screen.........................................5-23

5.3.1.1 Bridge Counters Screen Fields.....................5-24

5.3.2 The Network Errors Option............................................5-24

5.3.2.1 Network Errors Screen Fields.......................5-25

5.4 THE FILTERING DATABASE OPTION.....................................5-26

5.4.1 The Filtering Database Screen......................................5-28

5.4.1.1 Acquired and Permanent Database

Screen Fields................................................5-29

5.4.1.2 Editing the Dynamic Ageing Time Field........5-30

5.4.1.3 Editing the Type of Filtering Field .................5-30

5.4.1.4 The Create Entry Option...............................5-31

5.4.1.5 The Delete Entry Option ...............................5-33

5.4.1.6 The Display Entry Option..............................5-34

5.4.1.7 The Display Range Option............................5-36

5.4.2 The Special Database Option .......................................5-38

5.4.2.1 The Special Database Screen Fields............5-39

5.4.2.2 Adding Special Database Filters...................5-40

5.4.2.3 Deleting Special Database Filters.................5-42

5.4.2.4 Editing Special Database Filters...................5-43

5.5 THE BRIDGE PROTOCOL OPTION.........................................5-44

5.5.1 Bridge Protocol Parameters Screen..............................5-44

5.5.1.1 Bridge Protocol Parameters Screen Fields...5-45

5.5.1.2 Editing the Bridge Protocol Parameters

Screen Fields................................................5-47

5.5.2 The Port Parameters Option .........................................5-50

5.5.2.1 The Bridge Port Parameters Screen.............5-51

5.5.2.2 Bridge Port Parameters Screen Fields .........5-52

5.5.2.3 Editing the Bridge Port Parameters

Screen Fields................................................5-53

APPENDIX A ERROR MESSAGES

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CHAPTER 1

INTRODUCTION

Welcome to Cabletron Systems'

Cabletron Systems NB30 User's Manual

manual to serve as a simple reference guide for you to read through and gain a full understanding of NB30/LMJM - Local Management for the Cabletron Systems NB30M Bridge.

NB30/LM - Local Management for the

. We have designed this

1.1 USING THIS MANUAL

Chapter 1, Systems' NB30/LM - Local Management for the Cabletron Systems NB30. The chapter also includes a list of related user manual s.

Chapter 2, Management for the NB30. This chapter includes procedures for entering the password and also lists the necessary terminal and cable conﬁgurations for communicating with Local Management through the console port on the NB30.

Introduction

Getting Started

, discusses the different capabilities of Cabletron

, lists procedures for accessing Local

Chapter 3, provides general screen information and general tips for using Local Management for the NB30. A Menu Tree is included to help you get around Local Management.

Chapter 4, Screen ﬁelds and provides an overview of the options available at this screen.

Chapter 5, option available at the Bridge Information Screen. These options are: Save Names, Port Counters, Filtering Database, Bridge Protocol, Setup, and Exit. Step-by-step instructions on how to use these screens are included, as well as a brief explanation of the ﬁelds appearing with each option.

Using Local Management for Cabletron Systems' NB30

Bridge Information Screen

Using Bridge Management Options

, discusses the Bridge Information

, describes in detail each

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INTRODUCTION

This manual covers the 1.10.00 Bridge ﬁrmware version of Local Management for the NB30.

We assume that you have a general working knowledge of Ethernet or IEEE 802.3 type data communication networks and their physical layer components.

1.2 GETTING HELP

If you need additional support related to Cabletron Systems' Local Management for the NB30, or if you have any questions, comments, or suggestions concerning this manual or any of our other networking products, feel free to contact Cabletron Systems' Technical Support at:

Cabletron Systems P.O. Box 5005 Rochester, NH 03867-5005 Phone: (603) 332-9400

1.3 NB30/LM LOCAL MANAGEMENT FOR THE CABLETRON SYSTEMS NB30

Cabletron Systems' Local Management provides unique management and control capabilities for the Cabletron Systems NB30. With Local Management, you can monitor and ﬁne-tune the operation of your bridge by isolating network trafﬁc and channeling it to its proper destination. At the same time, you will improve your network performance.

Local Management provides the necessary management tools for your NB30 to operate at its full capacity. With Local Management, an NB30 can be managed according to the speciﬁc needs of a network manager. The network manager's ability to set up parameters within Local Management ensures optimal performance for the NB30, and, hence, each network.

For example, a network manager can monitor: the ﬂow of trafﬁc through an NB30, the status of a database, the bridge protocol and port parameters, and the bridge setup. The number of frames received at the bridge is recorded as well as a breakdown of the frames’

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INTRODUCTION

progress through the bridge, e.g., the frames discarded inbound or the frames forwarded outbound. A breakdown of errors is provided allowing the network manager to pinpoint potential problem areas in a network.

Bridge protocol and port parameters, related to the IEEE 802.1d Spanning Tree Algorithm, are provided so you can keep track of bridge acti vity and cost. Certain parameters can be altered to accommodate a network's particular requirements.

Local Management for the NB30 provides the network manager with the necessary control to operate a bridge effectively. For instance, a network manager can alter bridge setup, e.g., erase a database, disable or restart a bridge, reset counters, or restore default settings.

If two SPIMs are installed in the NB30, Local Management allows you to switch the SPIM that is communicating with the network or to set one of the SPIMs to act as a redundant data path.

When one of the SPIMs is set as a redundant data path, parameters can be set in Local Management so that the primary path will poll a repeater module installed in an MMAC. If the repeater module in the MMAC does not respond within a user deﬁned poll interval and the retry interval is exceeded, the redundant data path will automatically pick up communication. This feature ensures that communications between the local Ethernet Network and an individual NB30 is always maintained.

With a DSX-1 Remote Port module installed in the NB30, you can conﬁgure your T1 link connection and determine the status of the T1 link.

1.4 RELATED MANUALS

The following manuals should be used to supplement the procedures and other technical data provided in this manual. The procedures contained in these manuals will be referenced where appropriate, but will not be repeated in this manual.

Cabletron Systems'

NB30 Remote Ethernet Bridge User's Manual

Cabletron Systems'

Bridges Change Password Feature Instruction Sheet

Local Management for the Cabletron Systems'

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INTRODUCTION

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CHAPTER 2

GETTING STARTED

This chapter lists procedures for accessing Local Management for the NB30. Information is provided on the necessary terminal and cable conﬁgurations for connecting a terminal to the console port on the NB30, as well as instructions for entering the password.

2.1 TERMINAL CONFIGURATION

Local Management for the NB30 is accessed through a VT™ 200 or 300 series or a PRIME™ 200 series terminal, or terminals running emulation programs for these series of terminals. The terminal or emulating terminal is attached to the port labeled CONSOLE on the bridge.

For instructions on setting up your terminal and the keyboard map, refer to your terminal manual.

The terminal conﬁgurations must be set as follows, so that the terminal can communicate with Local Management for the NB30.

2.1.1 VT200 or 300 Series Setup

If you have a VT200 or 300 series terminal, press F3 to access the Setup Directory.

Display Set-up Menu

Columns 80 Columns Controls Interpret Controls Auto Wrap No Auto Wrap Text Cursor No Cursor

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GETTING STARTED

General Set-up Menu

Mode (VT220) VT200, 7 Bit Control

(VT320) VT300, 7 Bit Control

Cursor Keys Normal Cursor Keys

Communications Set-up Menu

Transmit Transmit=9600 Receive Receive=Transmit XOFF XOFF at 64 Bits Parity 8 bits, No Parity Stop Bit 1 Stop Bit Local Echo No Local Echo Port (VT220) EIA Port, Data Leads Only

(VT320) DEC-423, Data Leads Only Transmit any option Auto Answerback No Auto Answerback

Keyboard Set-up Menu

Keys Typewriter Keys Auto Repeat any option Keyclick any option Margin Bell No Margin Bell Warning Bell Warning Bell Auto Answerback No Auto Answerback

2.1.2 Prime 200 Series Setup

If you have a PRIME 200 series terminal, press SETUP to access the Setup Directory.

Cursor Type any option Brightness any option Screen Size 80 x 24 Screen V ideo Normal Control Representation OFF Line Feed Mode ON Line Truncate OFF

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GETTING STARTED

Transmission CHAR Keyboard Repeat Rate any option N-key Rollover any option Margin Bell Volume OFF Key Click Volume any option Scroll any option (hard is preferred) Speed any option Kybd U.S. Char U.S. Menu English Online/Local ONLINE Host Stop Bits 1 Aux Stop Bits any option Host Baud Rate 9600 Host Parity 8-bit none, 7-bit space Aux Baud Rate any option Aux Parity any option

2.2 CABLE CONFIGURATION

Local Management is accessed by an RS232 cable available from Cabletron Systems. This cable connects the terminal to the bridge's Console port.

The pin out for a cable with a 25 pin or a 9 pin connector at the terminal end of the cable, and a 9 pin connector at the bridge end of the cable, should be conﬁgured as shown in Section 2.2.1 or 2.2.2.

2.2.1 VT 200 or 300 Series

9 Pin Male Connector to 25 Pin Female Connector (Bridge End) (Terminal End)

Pin 3 (Receive) to Pin 2 (Transmit) Pin 2 (Transmit) to Pin 3 (Receive) Pin 5 (Ground) to Pin 7 (Ground) Pin 7 (Request to Send) to Pin 5 (Clear to Send) Pin 8 (Clear to Send) to Pin 20 (Data Terminal Ready)

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GETTING STARTED

9 Pin Male Connector to 9 Pin Female Connector (Bridge End) (Terminal End)

Pin 3 (Receive) to Pin 3 (Transmit) Pin 2 (Transmit) to Pin 2 (Receive) Pin 5 (Ground) to Pin 5 (Ground) Pin 7 (Request to Send) to Pin 8 (Clear to Send) Pin 8 (Clear to Send) to Pin 7 (Request to Send)

2.2.2 Prime 200 Series

9 Pin Male Connector to 25 Pin Female Connector (Bridge End) (Terminal End)

Pin 3 (Receive) to Pin 2 (Transmit) Pin 2 (Transmit) to Pin 3 (Receive) Pin 5 (Logic Ground) to Pin 7 (Logic Ground) Pin 8 (Clear to Send) to Pin 4 (Request to Send) and

Pin 5 (Clear to Send)

Pins 6, 8, and 20 are jumpered together.

2.3 ACCESSING LOCAL MANAGEMENT

This procedure assumes that the 9 to 25 pin RS232 cable, available from Cabletron Systems, is being used to connect the terminal to the Bridge.

To access Local Management, follow the procedure below:

1. Plug the 9 pin end of the RS232 cable into the RS232 port labeled

CONSOLE on the bridge.

2. Plug the 25 pin end of the RS232 cable into the COMM port on the

terminal.

3. Turn the terminal on. The Terminal Type Menu Screen, Figure 2-1,

will appear, prompting you to select the terminal type.

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TERMINAL TYPE MENU

1. VT 100 Series

2. PRIME 200 Series

Select Terminal Type -->

GETTING STARTED

Figure 2-1 Terminal Type Menu Screen

4. Type 1 or 2, depending upon your terminal type. The Bridge Password Screen, Figure 2-2, will appear on the screen.

5. Enter the password as follows: a. Type the password into the Enter Password ﬁeld. b. Press

Return

. If you enter an invalid password, the message “Invalid Password Entered” will appear on the screen. When the correct password is entered, the Bridge Information Screen, Figure 2-3, will appear on the terminal. Local Management for the NB30 is now ready for operation.

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GETTING STARTED

REMOTE BRIDGE LOCAL MANAGEMENT

Cabletron Systems’ Incorporated

P.O. Box 5005 Rochester NH 03867 U.S.A.

(603) 332-9400

Version:1.10.00

Enter Password:

Figure 2-2 Bridge Password Screen

06/11/91 BRIDGE INFORMATION

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes

Port: Enet Port 1 Remote Port Port Address: 00-00-1D-00-10-CA Port name: ETHERNET PORT 1 REMOTE PORT Port Type: 802.3 - SPIM A RS449 Port Status: LINK OK/SQE ON LINK ON/DCE READY Net. Name: LAN_1 REMOTE LINK

Frames Forwarded: 8504 Remote I.D. 00-00-1D-00-36-B8 Frames Received: 628104 Frames Filtered: 619586 Remote STA Mode: PRIMARY Errors: 101 Local STA Mode: SECONDARY

SAVE NAME PORT COUNTERS EXIT FILTERING DATABASE BRIDGE PROTOCOL SETUP

Figure 2-3 Bridge Information Screen

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CHAPTER 3

USING LOCAL MANAGEMENT

FOR THE NB30

This chapter explains how to move around Local Management for the NB30. Local Management's screens can be easily accessed by manipulating the arrow keys on your terminal. A menu tree of the software is provided for your convenience. Refer to this illustration until you are familiar with the organization of the screens.

3.1 GENERAL SCREEN INFORMATION

Similar descriptive Information is displayed in the upper portion of all Local Management for the NB30 screens. A list of these common ﬁelds is provided here for your convenience.

Network Address:

Displays the Ethernet address of the bridge in a hexadecimal format (XX-XX-XX-XX-XX-XX).

Bridge Name:

Displays the user-deﬁned name (up to 32 characters available) if one has been assigned to the bridge. The default name is CABLETRON REMOTE BRIDGE.

Location:

Displays the user-deﬁned name (up to 14 characters available) to indicate the location of the bridge on the network. The default name is LOCAL.

Uptime:

Displays the time period (in Days, Hours, Minutes format) that has elapsed since the bridge was last reset or initialized.

Type:

Indicates the type of bridge, e.g. NB30.

SW Ver sion (Software):

Displays the release version of the ﬁrmware installed in the NB30.

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USING LOCAL MANAGEMENT

HW Ver sion (Hardware):

Displays the revision number of the mother board of the bridge.

Status:

Indicates the status of the bridge, e.g., ON-LINE, STAND BY, or DISABLED.

3.2 GENERAL TIPS

• Use the arrow keys to move the cursor up, down, left, or right on the screen to select ﬁelds or options.

• The TAB key performs the same function as the right arrow key.

• At the bottom of most screens, you can return to the previous screen by selecting the Return option.

3.3 LOCAL MANAGEMENT MENU TREE

The Bridge Information Screen is at the top of the Local Management for the NB30 menu tree. All the screens that manage and control the bridge are accessed through this screen. From the Bridge Information Screen, the menu branches out. For instance, there are six options available at the Bridge Information Screen. Four of these options - Setup, Port Counters, Filtering Database, and Bridge Protocol - lead to additional screens. These screens move from general to more speciﬁc. For e xample, from the Filtering Database Screen, you can view the total number of entries in the Acquired or Permanent databases. Then, by selecting the Display Entry option at the bottom of the Filtering Database Screen, you can view individual entries. As you can see, the further you move down the menu tree, the more speciﬁc the diagnostic functions become. This menu tree is provided to assist you while moving through Local Management for the NB30. Refer to this illustration to locate your position on the menu tree.

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SELECT TERMINAL TYPE

REMOTE BRIDGE LOCAL MANAGEMENT

ENTER PASSWORD

BRIDGE INFORMATION SCREEN

USING LOCAL MANAGEMENT

SAVE

NAMES

BRIDGE COUNTERS

NETWORK ERRORS

CREATE

ENTRY

FILTERING DATABASE

RETURN

CREATE

DISPLAY RANGE

COUNTERS DATABASE PROTOCOL

RETURN

PORT FILTERING BRIDGE SETUP EXIT

BRIDGE PR

PARAMETERS

PORT PARAMETERS

BRIDGE PORT

PARAMETERS

FILTERING DATABASE

RETURN

DISPLAY DELETE DISPLAY SPECIAL

RANGE ENTRY ENTRY DATABASE

FILTERING DATABASE

RETURN

DELETE

DISPLAY RANGE

OTOCOL

RETURN

SAVE

RETURN

SAVE

DATABASE

ADD FILTER

BRIDGE SETUP

RETURN

EXECUTE

PORT SETUP

CHANGE PASSWORD

CHANGE

PASSWORD

RETURN

DSX-1 PORT SETUP

DEACTIVATE ALL

SPECIAL

RETURN

PORT

SETUP

RETURN

EXECUTE

(DSX-1)

POR

RETURN

DSX-1 SETUP

EXECUTE

RETURN

ACTIVATE ALL

EXECUTE

SPECIAL

DATABASE

RETURN

SAVE FILTER

T SETUP

FILTERING DATABASE

RETURN

DISPLAY RANGE

FILTERING DATABASE

RETURN

DISPLAY RANGE

Figure 3-1 Local Management for the NB30 Menu Tree

FILTERING DATABASE

RETURN

DISPLAY RANGE

RETURN

SPECIAL

DATABASE

RETURN

SAVE FILTER

DELETE FILTER

DISPLAY RANGE

RETURN

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USING LOCAL MANAGEMENT

3-4

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CHAPTER 4

BRIDGE INFORMATION SCREEN

The Bridge Information Screen of Local Management for the NB30 is the main screen from which all bridge management options are accessed. This screen also provides descriptiv e information about the bridge and the network trafﬁc passing through it.

4.1 THE BRIDGE INFORMATION SCREEN

The Bridge Information Screen, Figure 4-1, is the ﬁrst screen to appear after your password is entered. This screen contains a variety of identifying data and descriptive information for a bridge and its ports. But more importantly, it is the screen from which you access all functions available for Local Management for the NB30. The bridge identifying data and descriptive information appear in the top portion of each screen. Refer to the section on General Screen Information in Chapter 3 if you need explanation for these ﬁelds.

06/11/91 BRIDGE INFORMATION

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes

Frames Forwarded: 8504 Remote I.D. 00-00-1D-00-36-B8 Frames Received: 628104 Frames Filtered: 619586 Remote STA Mode: PRIMARY Errors: 101 Local STA Mode: SECONDARY

SAVE NAME PORT COUNTERS EXIT FILTERING DATABASE BRIDGE PROTOCOL SETUP

Figure 4-1 Sample Bridge Information Screen

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BRIDGE INFORMATION SCREEN

The middle portion of the screen contains similar descriptive information for the ports of a bridge. These ﬁelds are listed and explained brieﬂy below.

4.1.1 Selecting the Ethernet Port

If two SPIMs are installed in the NB30, you can select the Ethernet Port for which the Bridge Information Screen will display status information .

T o select which Ethernet Port will be displayed on the Bridge Information Screen:

1. Using the arrow keys, highlight the Port field for the Ethernet port.

2. Press the Return key until the appropriate port appears. The Port field is a toggle field that alternately displays Enet Port 1 and Enet Port 2 when you press Return.

Information for the appropriate Ethernet Port will appear.

4.1.2 Bridge Information Screen Fields

Port:

Indicates the bridge port (Enet Port 1, Enet Port 2, or Remote Port) that corresponds to the information in the respective columns.

Port Address:

Displays the Ethernet address of Enet Port 1 or Enet Port 2 in a hex format (XX-XX-XX-XX-XX-XX). These addresses will be the same for Enet Port 1 and 2. The Remote Port has no address.

Port Name:

Displays the user-deﬁned port name (up to 32 characters) assigned to the port. The default names are ETHERNET PORT 1, ETHERNET PORT 2, and REMOTE PORT.

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BRIDGE INFORMATION SCREEN

Port T ype:

Indicates the mode used by the port. (Enet Port 1 will always have one of the listed SPIMs installed. Enet Port 2 is an optional port, and SPIMs can be ordered upon customer request.)

The Enet Port 1 and Enet Port 2 (if installed) type is 802.3 (Ether net) with the following interface modules:

SPIM-T™ A 10BASE-T Twisted Pair Single Port Interface

Module with one internally crossed-over RJ-45 Port.

SPIM-T1™ A 10BASE-T Twisted Pair Single Port Interface

Module with one DB-9 Port.

SPIM-F1™ A Fiber Optic Single Port Interface Module with one

pair of ﬁber optic SMA Ports.

SPIM-F2™ A Fiber Optic Single Port Interface Module with one

pair of ﬁber optic ST Ports.

SPIM-C™ A Coaxial Single Port Interface Module with one BNC

Port.

SPIM-A™ An AUI Single Port Interface Module with 1 female

AUI Port.

Not Installed No SPIM is installed for this port (Enet Port 2 only).

Remote Port types are:

RS449 Remote Interface Card supportingRS449/422

communications.

V.35 Remote Interface Card supporting V.35

communications. DSXl/D4 Superframe format for T1 link. DSX1/ESF Extended superframe format for T1 link.

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BRIDGE INFORMATION SCREEN

ERROR MODE will appear if Remote Interface Card is not installed properly.

Port Status:

Displays the operating status of the port.

The status messages for Enet Port 1 and Enet Port 2 are:

LINK OK/SQE ON Indicates that a proper link is established with the

network and that SQE (a test to insure that the

collision presence circuit and path is working) is

enabled on the transceiver connected to the bridge.

Note that the SQE ON status message will also

appear for transceivers with SQE disabled until a

packet is transmitted from the bridge through the

Ethernet SPIM.

LINK OK/SQE OFF Indicates that a proper link is established with the

network and SQE is disabled on the transceiver

connected to the bridge.

CARRIER LOST If a SPIM-A is installed in the port, this indicates

that the port has lost communications with the

network.

For other SPIMs, this message may indicate that

the SPIM is not properly installed in the NB30.

LINK LOST If a SPIM-T, SPIM-T1, SPIM-F1 or SPIM-F2 is

installed in the port, this message indicates that the

link between the port and the Ethernet device has

failed.

PORT OFFLINE Indicates that a SPIM is installed in the port but is

not transferring data.

NOT AVAILABLE Indicates that the port is not installed.

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BRIDGE INFORMATION SCREEN

The status/alarm messages for the Remote Port are:

DSVESF and DS1/D4 Module Port Status Messages NORMAL The port is in normal T1 Link operation. NET LOOP The port is looped towards the network. REM LOOP The port is performing a remote loopback test.

DS1/ESF and DS1/D4 Module Port

Alarm Messages LINK OK Indicates that the port is ready for transmission. LOST SIGNAL Indicates that the Remote port is not receiving any

signal, probably due to an unplugged cable .

YELLOW ALARM Indicates a loss of synchronization has occurred on

the receive link of the NB30 on the other side of the Remote link.

RED ALARM Indicates a loss of synchronization has occurred on

the receive link of the bridge.

RS449 and

V.35 Module Port Status/Alarm Messages

NO EXT CLOCK Indicates that the Remote port is not

receiving a clock signal from the DCE.

DCE NOT READY/NO DM Indicates that the DCE is not in the data

DCE NOT READY/NO CTS Indicates that the DCE is not ready to

LINK OK/ DCE READY Indicates that communication between

transfer mode

transmit data.

the Remote port and the DCE is established, and they are ready to transfer data.

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BRIDGE INFORMATION SCREEN

NOT AVAILABLE Indicates that the Remote port type is currently in

an error mode. Check the Remote port installation.

Net Name:

Displays the user-deﬁned name (up to 32 characters) assigned to a particular network in an environment where multiple networks are involved. The default names are LAN 1 or LAN 2 for the Enet ports and REMOTE LINK for the Remote port.

Remote I.D.

Indicates the Ethernet address of the NB30 at the other end of the Remote link that makes the bridge pair.

Remote STA Mode:

Displays the Spanning Tree Algorithm mode that the NB30 at the other end of the Remote link is operating in.

The NB30 at the other end of the link will be operating in one of the following modes:

Primary Indicates that the NB30 at the other end of the link is acting

as the primary bridge, generating BPDUs, for determining the bridge's position in the network.

Secondary Indicates that the NB30 at the other end of the link is acting

as the secondary bridge, passing BPDUs, for determining the bridge's position in the network.

Disabled Indicates that Spanning Tree Algorithm on the NB30 at the

other end of the link is disabled.

Unknown Indicates that communications between the NB30s on the

link have not been established.

Local STA Mode:

Displays the Spanning Tree Algorithm mode that the NB30 at this end of the Remote Link is operating in.

The NB30 at this end of the Remote Link will be operating in one of the following modes:

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BRIDGE INFORMATION SCREEN

Primary Indicates that the NB30 is acting as the primary bridge,

generating BPDUs for determining the bridge's position in the network.

Secondary Indicates that the NB30 is acting as the secondary bridge,

passing BPDUs, for determining the bridge's position in the network.

Disabled Indicates that Spanning Tree Algorithm on the NB30 is

disabled.

Unknown Indicates that communications between the NB30s on the

link have not been established.

Frame Count Information Data Fields

Frames Forwarded:

Indicates the total number of frames that the bridge has forwarded out of both the Ethernet and Remote ports.

Frames Received:

Indicates the total number of frames the bridge has received on both the Ethernet and Remote ports.

Frames Filtered:

Indicates the total number of frames ﬁltered by the Ethernet side of the bridge.

Errors:

Displays the total number of network errors that have occurred. This count is broken down at the Network Errors Screen.

4.2 AVAILABILITY OPTIONS

The Bridge Information Screen is the screen from which you access all of the screens or options available for management of your Cabletron Systems' NB30. These command options are described below. You can select each ﬁeld by using the arrow keys to highlight the appropriate option at the bottom of the screen and pressing Return.

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BRIDGE INFORMATION SCREEN

Setup

With this option, you can erase the bridge database, reset counters, restore the default settings, and disable, enable, or restart the bridge. Toggle between the selections by pressing the Return key. You can edit the time, date, IP Address, or the screen refresh time for the bridge. The new v alues for these ﬁelds must be manually entered. From the Port Setup option you can also set up the NB30's Redundancy feature, and DSX-1 parameters if one is installed. This option is explained in Section 5.1.

Save Names

If you choose to assign names to a bridge, a bridge location, a network, or a port, you can do so by entering the appropriate name(s) at the Bridge Information Screen, and then selecting this option. This option is explained in Section 5.2.

Port Counters

Selection of this option provides a breakdown of frame activity for each port on the bridge. Counts of valid frames forwarded and frames received but discarded are displayed. An additional option, the Network Errors Option, displays the number of errors detected per port. This option is explained in Section 5.3.

Filtering Database

With this option, you can add or delete addresses from the Source Address Table for the Acquired Database or Permanent Database of the Ethernet port. You can also display database statistics for the bridge. Statistics include current and maximum number of entries in the databases, type of ﬁltering, and Ageing Time parameters.

The Filtering Database Option also includes a Special Database Option. With this option, you can add or delete ﬁlters that will screen packets according to four parameters: destination address, source address, type (protocol), and data ﬁeld. You can use the parameters individually or in combination to ﬁlter (block) or relay (forward) certain packets. This option is explained in Section 5.4.

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Bridge Protocol

Selection of this option allows you to display the protocol parameters for the NB30 as they relate to the Spanning Tree Algorithm. With this option, you can also update or change certain protocol parameters. When the NB30 is the root bridge, or is attempting to become the root, parameter changes can be made to affect the time interval between transmission of BPDUs, Bridge Forward Delay T ime, or the maximum time or age of data before it is discarded. The part of the bridge identiﬁer used in priority comparisons can also be changed. Changes made that affect bridge topology are recorded and displayed. This option explained in Section

5.5.

Exit

Selection of this option will exit you from Local Management for the NB30 to the Password Screen.

All options and associated screens are explained in detail in the next chapter, Using Bridge Management Options.

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All available options in Local Management for the NB30 are initiated from the Bridge Information Screen, Figure 5-1. In this chapter, each option is explained. The screen displays are arranged in sequence with the options selected.

To select any option at the bottom of the screen:

1. Using the arrow keys, highlight the appropriate option.

2. Press Return. The appropriate screen will appear.

06/11/91 BRIDGE INFORMATION

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes

Frames Forwarded: 8504 Remote I.D. 00-00-1D-00-36-B8 Frames Received: 628104 Frames Filtered: 619586 Remote STA Mode: PRIMARY Errors: 101 Local STA Mode: SECONDARY

SAVE NAME PORT COUNTERS EXIT FILTERING DATABASE BRIDGE PROTOCOL SETUP

Figure 5-1 Bridge Information Screen

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5.1 THE SETUP OPTION

The Setup option available at the Bridge Information Screen allo ws you to erase the bridge's Permanent and Acquired Databases, reset bridge counters, restore the bridge to its default settings, and disable, enable, or restart the bridge. The setup option also enables you to set the time and date, the IP Address, the screen refresh time, and the type of Spanning Tree Algorithm.

To select the Setup option:

1. Use the arrow key to highlight SETUP at the bottom of the Bridge Information Screen.

2. Press Return. The Bridge Setup Screen, Figure 5-2, will appear.

06/11/91 BRIDGE SETUP

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes Status: ON_LINE

Restore Default Settings: NO Reset Counters: NO

Erase Permanent Database: NO Disable Bridge: NO

Erase Acquired Database: NO Disable Bridge: NO

Set Date: 08/01/90 Set Time: 12:47:22

Set IP Address: 0.0.0.0 Set Refresh Time: 2

Type of STA Protocol: IEEE Restarts: 3

RETURN EXECUTE PORT SETUP CHANGE PASSWORD

Last Reset: 06/11/91 07:10:00

Figure 5-2 Bridge Setup Screen

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5.1.1 Setup Option Screen Fields

This section lists the Setup Screen ﬁelds and provides instructions for editing these ﬁelds.

Restore Default Settings:

Indicates if the following will be reset to their default values:

• Bridge Name back to CABLETRON REMOTE BRIDGE.

• Location back to LOCAL.

• Enet Port 1 Name on Bridge Information Screen back to ETHERNET

PORT 1.

• Enet Port 2 Name on Bridge Information Screen back to ETHERNET

PORT 2.

• Remote Port Name on Bridge Information Screen back to REMOTE

PORT.

• Net. Name for Enet Port 1 on Bridge Information Screen back to

LAN_1.

• Net. Name for Enet Port 2 on Bridge Information Screen back to

LAN_2.

• Net. Name for Remote Port on Bridge Information Screen back to

REMOTE LINK

• Type of STA protocol on Bridge Setup Screen back to IEEE.

• Screen Refresh Time on Bridge Setup Screen back to 2 seconds.

• Number of Restarts on Bridge Setup Screen back to 0.

• Default Enet Port on Port Setup Screen back to Port 1.

• Enable Redundancy on Port Setup Screen back to NO.

• Port 1 Poll Address on Port Setup Screen back to 00-00-00-00-00-00.

• Port 1 Poll Interval on Port Setup Screen back to 5 seconds.

• Port 1 Max Retries on Port Setup Screen back to 6.

• Port 2 Poll Address on Port Setup Screen back to 00-00-00-00-00-00.

• Port 2 Poll Interval on Port Setup Screen back to 5 seconds.

• Port 2 Max Retries on Port Setup Screen back to 6.

• Type of Filtering Filtering Database Screen back to IEEE 802.1.

• Ageing Time on Filtering Database Screen back to 300 seconds

• All Spanning Tree Algorithm information on the Bridge Protocol

Parameter screen back to their default values. The Restart Bridge option must be also executed for all Spanning Tree information to be restored to their default values.

• DSX-1 Channel Assignment returns to all Enabled.

• DSX-1 Test Pattern to Alternate 1/0s.

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Erase Permanent Database:

Indicates if the entire permanent database will be erased. This does not include the reserved 17 multicast addresses placed in the database on bridge power up.

Erase Acquired Database:

Indicates if the entire acquired database will be erased. This does not include the 17 reserved multicast addresses placed in the database on bride power up.

Set Date:

Displays the current date setting at the bridge.

Set IP Address:

Displays the current IP Address setting of the bridge. An IP Address must be assigned to the bridge if it will be communicating with a device that is on the other side of a third party router or gateway.

Type of STA Protocol:

Indicates the Spanning T ree Algorithm Protocol under which the NB30 is operating. The NB30 can operate in:

• An IEEE 802.1 Compliant Spanning Tree Algorithm environment (IEEE).

• A DECTM LAN Bridge™ 100 or Vitalink TransLAN® environment (DEC).

• Without the Spanning Tree Algorithm enabled (NONE).

Reset Counters:

Indicates if all counter information on the Bridge Information, Bridge Counters, and Network Errors screens will be set to zero.

Disable Bridge:

Indicates if the bridge will be disabled to network trafﬁc.

Restart Bridge:

Indicates if the bridge will undergo a software reset.

Set Time:

Displays the current time setting (in 24 hour format) at the bridge.

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Set Refresh Time:

Displays in seconds how often the screen is updated. Default is 2 seconds.

Restarts:

Indicates the number of times the bridge has been powered up or restarted.

5.1.2 Editing the Setup Screen Fields

Restoring the NB30 Default Settings

To restore the NB30 to its default settings:

1. Using the arrow keys, highlight the Restore Default Settings field.

2. Press the Return key until the YES selection appears. The Restore

Default Settings field is a toggle field that alternately displays YES and NO when you press Return.

3. Highlight the EXECUTE option at the bottom of the Bridge Setup

Screen.

4. Press Return. The bridge will be restored to its default settings. If you want all Spanning

Tree information to be restored to its default values, the Restart Bridge option must be also executed.

Erasing the Permanent Database

To erase the Permanent Database:

1. Using the arrow keys, highlight the Erase Permanent Database field.

2. Press the Return key until the YES selection appears. The Erase

Permanent Database field is a toggle field that alternately displays YES and NO when you press Return.

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3. Highlight the EXECUTE option at the bottom of the Bridge Setup Screen.

4. Press Return.

The content of the Permanent Database, excluding the 17 reserved multicast addresses placed in the database on bridge power up, will be erased.

NOTE: Erasing the Permanent Database will not erase the duplicate entries in the Acquired Database. The Acquired Database must also be erased for all permanent entries to be deleted from the bridge's databases.

Erasing the Acquired Database

To erase the Acquired Database:

1. Using the arrow keys, highlight the Erase Acquired Database field.

2. Press the Return key until the YES selection appears. The Erase Acquired Database field is a toggle field that alternately displays YES and NO when you press Return.

3. Highlight the EXECUTE option at the bottom of the Bridge Setup Screen.

4. Press Return.

The content of the Acquired Database, excluding the 17 reserved multicast addresses placed in the database on bridge power up, will be erased.

Entering the Date

To enter a new date:

1. Using the arrow keys, highlight the SET DATE field.

2. Enter the date in a mm/dd/yy format.

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3. Press Return.

4. Highlight the EXECUTE option at the bottom of the Bridge Setup

Screen.

5. Press Return. The indicated date will become the new date setting.

Setting the IP Address

To set the IP Address:

1. Using the arrow keys, highlight the Set IP Address field.

2. Enter the address in nnn.nnn.nnn.nnn format, where nnn is a decimal

number from 0 to 255.

3. Press Return.

4. Highlight the EXECUTE option at the bottom of the Bridge Setup

Screen.

5. Press Return. The indicated value will be the new IP Address.

Setting the Type of STA Protocol

To set the Type of STA Protocol:

1. Using the arrow keys, highlight the Type of STA Protocol field.

2. Press the Return key until the appropriate selection appears. The Type

of STA Protocol field is a toggle field that alternately displays IEEE, DEC, or NONE when you press Return.

3. Highlight the EXECUTE option at the bottom of the Bridge Setup

Screen.

4. Press Return.

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The selected Spanning Tree Algorithm Type will be applied to the bridge. If NONE was selected, the Spanning T ree Algorithm will be disabled (if it

was already enabled). If STA Protocol Type was changes from NONE to either IEEE or DEC,

the bridge must be restarted, using the Restart Bridge option, for the selected STA protocol to be applied to the bridge.

Resetting the Counters

To reset the counters:

1. Using the arrow keys, highlight the Reset Counters field.

2. Press the Return key until the appropriate selection appears. The Reset Counters field is a toggle field that alternately displays YES and NO when you press Return.

3. Highlight the EXECUTE option at the bottom of the Bridge Setup Screen.

4. Press Return.

All counters will be set to 0.

Disabling the Bridge

To disable the bridge:

1. Using the arrow keys, highlight the Disable Bridge field.

2. Press the Return key until the YES selection appears. The Disable Bridge field is a toggle field that alternately displays YES and NO when you press Return. Selecting YES disables the bridge and keeps it disabled until you restart or enable it.

3. Highlight the EXECUTE option at the bottom of the Bridge Setup Screen.

4. Press Return.

The bridge will be disabled to network trafﬁc and will remain disabled until you restart or enable it.

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Restarting the Bridge

To restart the bridge:

1. Using the arrow keys, highlight the Restart Bridge field.

2. Press the Return key until the YES selection appears. The Restart

Bridge field is a toggle field that alternately displays YES and NO when you press Return.

3. Highlight the EXECUTE option at the bottom of the Bridge Setup

Screen.

4. Press Return. The bridge will restart as if it is powered up. After several seconds the

Terminal Type Screen will appear.

Setting the Time

To set the time:

1. Using the arrow keys, highlight the Set Time field.

2. Enter the time in 24 hour hh:mm:ss format.

3. Press Return.

4. Highlight the EXECUTE option at the bottom of the Bridge Setup

Screen.

5. Press Return. The indicated time will be the new time setting.

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Setting the Refresh Time

To set a new refresh time:

1. Using the arrow keys, highlight the Set Refresh Time field.

2. Enter the time (zero is not allowed).

3. Press Return.

4. Highlight the EXECUTE option at the bottom of the Bridge Setup Screen.

5. Press Return.

The indicated time will be the new time setting.

5.1.3 The Change Password Option

To use the Change Password option, refer to Cabletron Systems' Instruction Sheet entitled, NB30/LlM Local Management for the Cabletron Systems' NB30 Change Password Feature.

5.1.4 The Port Setup Option

With the Port Setup Option, you can view the status of the switches in the front and rear panel of the NB30. If two SPIMs are installed in the NB30, this option allows you to switch the SPIM that is communicating with the network or to set one of the SPIMs to act as a redundant data path.

If you have a DSX-1 Remote Port module installed in your NB30, you can conﬁgure the connection to the T1 link, and run loopback tests to determine the status of the T1 link.

To access the Port Setup Screen:

1. Highlight the PORT SETUP option at the bottom of the Bridge Setup Screen.

2. Press Return. The Port Setup Screen, Figure 5-3 a or b, will appear.

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The appearance of the Port Setup screen depends on how many SPIMs you have installed in the NB30, and whether or not you have the DSX-1 module installed.

SPIM Port Setup Screen

If a DSX-1 is not installed in the NB30, refer to Figure 5-3 a. With two SPIMs installed in the NB30, the screen will appear as shown in Figure 5-3 a. This screen displays switch and port information on the left side of the screen and redundancy information on the right side of the screen.

If only one SPIM is installed in the NB30, the information on the right side of Figure 5-3 a, including the redundancy EXECUTE option, will not appear .

07/20/91 PORT SETUP

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes Status: ON_LINE

Config A-1: Rem DM enable OFF Default Enet Port: Port 1 Config A-2: STA enable ON Active Enet Port: Port 1 Config A-3: Unused OFF Enable Redundancy: NO Config A-4: Unused OFF Port 1 Poll Address: 00-00-00-00-00-00 Port 1 Poll Interval: 2 Comm Port Mode: RS-422 Port 1 Max Retries: 2

Root Switch: OFF Port 2 Poll Address: 00-00-00-00-00-00 Port 2 Poll Interval: 2 Fwd Broadcast Switch: OFF Port 2 Max Retries: 2

RETURN EXECUTE

Figure 5-3 a. Port Setup Screen - No DSX-1 Module

DSX-1 Module Port Setup Screen

If your NB30 is equipped with a DSX-1 module, refer to Figure 5-3 b. The Port Setup Screen for an NB30 equipped with a DSX-1 module and two SPIMs will appear as shown in Figure 5-3 b. This screen displays DSX-1 switch and port information on the left side of the screen and redundancy information on the right side of the screen.

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3/20/91 PORT SETUP

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes Status: ON_LINE

Config A-1: T1 Timing Mode MASTER Default Enet Port: Port 1 Config A-2: STA enable OFF Active Enet Port: Port 1 Config A-3: T1 Framing ESF Enable Redundancy: NO Config A-4: Unused OFF Port 1 Poll Address: 00-00-00-00-00-00 Port 1 Poll Interval: 2 Comm Port Mode: RS-422 Port 1 Max Retries: 2

Root Switch: OFF Port 2 Poll Address: 00-00-00-00-00-00 Port 2 Poll Interval: 2 Fwd Broadcast Switch: OFF Port 2 Max Retries: 2

RETURN DSX-1 SETUP EXECUTE

Figure 5-3 b. Port Setup Screen - DSX-1 Module Installed

The DSX-1 SETUP command leads to the DSX-1 port setup screen. If only one SPIM is installed in a DSX-1 equipped NB30, the information

on the right side of Figure 5-3 b, including the redundancy EXECUTE option, will not appear.

5.1.4.1 Port Setup Screen Fields

V.35/RS449 Conﬁg A-1: Rem DM Enable

Indicates whether the bridge will ignore or recognize the Data Mode Control Signal from the Data Circuit Terminating Equipment (DCE). The Data Mode Control Signal is set by switching the Data Mode Control Switch on the back panel of the NB30. (See the NB30 Ethernet Bridge User's Manual for more information.)

OFF means that the NB30 will force Data Mode true and ignore the Data Mode Control Signal from the DCE.

ON means that the NB30 will require the Data Mode Control Signal from the DCE.

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DSX-1 Conﬁg A-1: T-1 Timing Mode

Indicates the mode of the transmit clock for the NB30 equipped with a DSX-1 module. The T1 Timing Mode is set by switching the Conﬁg A-1 switch on the back panel of the NB30. (See the NB30 Ethernet Bridge User's Manual for more information.)

OFF places the unit in a mode where the transmit clock is generated from an internal clock.

ON places the unit in a mode where the transmit clock is generated from the T1 link.

Conﬁg A-2: STA enabled

Indicates whether the Spanning Tree Algorithm (STA) is disabled or enabled. The Spanning Tree Algorithm is set by switching the Spanning Tree Algorithm Switch on the back panel of the NB30. (See the NB30 Ethernet Bridge User's Manual for more information.)

OFF means that the Spanning Tree Algorithm is disabled. ON means the Spanning Tree Algorithm is enabled.

V.35/RS449 Conﬁg A-3: Unused

This switch is currently not used in a V.35/RS449 equipped NB30.

DSX-1 Conﬁg A-3: T-1 Framing Mode

Indicates the Framing mode of the NB30 equipped with a DSX-1 module. The T1 Framing Mode is set by switching the Conﬁg A-3 switch on the back panel of the NB30. (See the NB30 Ethernet Bridge User's Manual for more information.)

OFF places the unit in ESF format. ON places the unit in D4 format.

Conﬁg A-4: Unused

This switch is currently not used.

Comm Port Mode

Not applicable at this time.

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Root Switch

Indicates whether the bridge has the Root Switch enabled or disabled. The root bridge will receive priority over all other bridges on the network for the purposes of the Spanning Tree Algorithm. (Only one bridge on the network should have the Root switch enabled.) The Root is set by switching the ROOT switch on the front panel of the NB30. (See the NB30 Ethernet Bridge User’s Manual for more information.)

OFF means that the Root Switch is disabled. ON means that the Root Switch is enabled. Please note that the Spanning Tree Algorithm switch on the back of the

NB30 must be in the enable position for the Root Switch to be operational. The root switch must be also set to the same setting both NB30's paired in the remote link.

Forward Broadcast Switch

Indicates whether the bridge will forward Broadcast packets across the wide area transmission link. This is set by switching the Forward Broadcast switch on the front panel of the NB30. (See the NB30 Ethernet Bridge User's Manual for more information.)

OFF means the bridge will not pass Broadcast messages across the link. ON means the bridge will pass Broadcast messages across the link.

The following ﬁelds will only appear if two SPIMs are installed in the NB30.

Default Enet Port:

Indicates the port that is set to communicate with the Ethernet network.

Active Enet Port:

Indicates the port that is currently communicating with the Ethernet network.

Enable Redundancy:

Indicates if the redundancy function is enabled.

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Port 1 Poll Address:

Indicates the Ethernet address of the MMAC that Port 1 will poll.

Port 1 Poll Interval:

Indicates, in seconds, how often Port 1 will poll the MMAC.

Port 1 Max Retries:

Indicates the number of times Port 1 will attempt to contact the MMAC before determining that communication has been lost.

Port 2 Poll Address:

Indicates the Ethernet address of the MMAC that Port 2 will poll.

Port 2 Poll Interval:

Indicates, in seconds, how often Port 2 will poll the MMAC.

Port 2 Max Retries:

Indicates the number of times Port 2 will attempt to contact the MMAC before determining that communications has been lost.

5.1.4.2 Setting the Default Enet Port Option

If two SPIMs are installed in the NB30, Local Management allows you to set which Ethernet port is communicating with the network. To set which port will be the default Ethernet port for communicating with the Ethernet Network:

1. Using the up arrow key, highlight the Default Enet Port Field.

2. Press the Return key until the appropriate selection appears. The

Default Enet Port field is a toggle field that alternately displays Port 1 and Port 2 when you press Return.

3. Highlight the EXECUTE option button at the bottom of the Port

Setup Screen.

4. Press Return. The selected Ethernet port will now be set to

communicate with the Ethernet network. The ON LINE LED associated with the port on the back of the NB30 should be lit.

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5.1.4.3 Setting the Redundancy Option

If two SPIMs are installed in the NB30, Local Management allows you to set a redundant data path that will automatically pick up communications in the event a primary path fails. This section provides an example of a redundancy conﬁguration and instructions for setting redundancy parameters in this conﬁguration.

Figure 5-4 illustrates a sample redundancy conﬁguration. An NB30 with two SPIM-Ts is connected to the network. Ethernet Port 1 on the NB30 is connected to MMAC 2 and is acting as the primary data path. Ethernet Port 2 is connected to MMAC 1 and will be acting as the redundant data path.

MMAC 1

REMOTE PORT ETHERNET PORT 2

ETHERNET PORT 1

Figure 5-4 Sample Redundancy Conﬁguration.

MMAC 2

To set Ethernet Port 2 to act as a redundant data path:

1. Using the up arrow key, highlight the Enable Redundancy Field.

2. Press the Return key until the YES selection appears. The Enable Redundancy field is a toggle field that alternately displays YES and NO when you press Return.

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3. Highlight the Port 1 Poll Address field.

4. Enter the Ethernet address of the Repeater Module installed in the

MMAC 2 in a hex XX-XX-XX-XX-XX-XX format.

5. Press Return. If the Ethernet address was entered in an improper hex

format, the message "Illegal Ethernet Address Entered" will appear at the top left of the screen.

6. Enter the poll interval, in seconds, into the Port 1 Poll Interval field. A

time of 1 to 30 seconds may be entered.

7. Press Return. If the poll interval was entered as O seconds, the

message "Numeric Entry Must be Greater Than or Equal to 1" will appear at the top left of the screen. If the poll interval was entered as more than 30 seconds, the message "Numeric Entry Must be Less Than or Equal to 30" will appear.

8. Enter the maximum retry interval, in seconds, into the Port 1 Max

Retries field. A retry count of 2 to 99 may be entered.

9. Press Return. If the retry count was entered as 1 or less, the message

"Numeric Entry Must be Greater Than or Equal to 2" will appear at the top left of the screen.

10. Enter the Ethernet address of the Repeater Module installed in the

MMAC 1 in a hex XX-XX-XX-XX-XX-XX format.

11. Press Return. If the Ethernet address was entered in an improper hex

format, the message "Illegal Ethernet Address Entered" will appear at the top left of the screen.

12. Repeat steps 6-9 for the Port 2 Poll Interval and Port 2 Max Retries

fields.

13. Highlight the EXECUTE option button at the bottom of the Port

Setup Screen.

14. Press Return. The message "Port Setup Screen Parameters Saved"

will appear and the redundancy function will be enabled.

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Ethernet Port 1 will now poll the Repeater Module in MMAC 2 at the designated Port 1 Poll Interval. If Repeater Module MMAC 2 does not respond within the poll interval, Ethernet Port 1 will poll MMA C 2 again. If Repeater Module in MMAC 2 does not respond within the Poll 1 Max Retries count, communications will be switched to Ethernet Port 2. Communications with the Ethernet network will now pass through MMAC 1. If communications should f ail between MMAC 1 and Ethernet Port 2, the NB30 will attempt to re-establish communications with MMAC 2 through Ethernet Port 1.

5.1.4.4 The DSX-1 Setup Option

If you have a DSX-1 module installed in your NB30, you can conﬁgure the setup and operation of the T1 link connection.

To do so:

1. Highlight the DSX-1 SETUP option button at the bottom of the Port Setup Screen.

2. Press Return. The DSX-1 Port Setup screen (Fig. 5-5) will appear.

3/20/91 DSX-1 PORT SETUP

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes Status: ON_LINE

DSX-1 CHANNEL ASSIGNMENT

01: Enabled 13: Enabled 02: Enabled 14: Enabled REMOTE LOOP DOWN 03: Enabled 15: Enabled 04: Enabled 16: Enabled 05: Enabled 17: Enabled LOOP STATUS 06: Enabled 18: Enabled NOT IN LOOPBACK 07: Enabled 19: Enabled 08: Enabled 20: Enabled 09: Enabled 21: Enabled 10: Enabled 22: Enabled TEST PATTERN 11: Enabled 23: Enabled Alternate 1/0s 12: Enabled 24: Enabled

REMOTE LOOP UP

RETURN ACTIVATE ALL INACTIVATE ALL EXECUTE

Figure 5-5 The DSX-1 Port Setup Screen

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DSX-1 Port Setup Fields DSX-1 Channel Assignment

Allows you to enable or disable any combination of the 24 channels on the T1 connection to the NB30. To do so:

NOTE: When you assign channels on a T1 link, you must set the channels on both NB30's of a pair to the same settings.

1. Use the Up and Down arrow keys to highlight the desired channel

number.

2. Press Return to toggle the channel between the Enabled or Disabled

condition.

3. Once you have specified the status of each channel, use the arrow keys

to highlight the EXECUTE command at the bottom of the window.

4. Press Return. The channels will be enabled or disabled as desired.

The Activate All Command

This command enables all channels on the T1 link. To do so:

1. Use the Arrow keys to highlight the ACTIVATE ALL command.

2. Press Return. All channels on the T1 link will be enabled, and will

display as such in the DSX-1 Channel Assignment field.

The Deactivate All Command

This command disables all channels on the T1 link. To do so:

1. Use the Arrow keys to highlight the DEACTIVATE ALL command.

2. Press Return. All channels on the T1 link will be disabled, and will

display as such in the DSX-1 Channel Assignment field.

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NOTE: The following two commands initiate a loopback test, illustrated in Fig. 5-6. The channel conﬁguration and the test pattern should not be changed during a loopback test.

LOCAL NB30

FAR END LOOP

Figure 5-6 Loopback Test

Remote Loop Up

REMOTE NB30

NET LOOP

Allows the user to send the loopup code to the remote bridge. This initiates a diagnostic test which determines the status of the T1 Link.

To initiate a loopback test:

1. Use the Right Arrow key to highlight Remote Loop Up.

2. Press Return to initiate the loopback test. The bridge Status field will be Disabled while the loopback test is being performed.

Remote Loop Down

Allows the user to send loopdo wn code to the remote bridge. This restores the DSX-1 back to operational (non-testing) condition.

To revert from a loopback test to operating condition:

1. Use the Right Arrow key to highlight Remote Loop Down.

2. Press Return to revert from testing to operating condition.

If Remote Loop Down is not performed within 5 minutes after initiating Remote Loop Up, the DSX-1 port will automatically perform Remote Loop Down.

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Loop Status

Shows the current condition of the DSX-1 port. The current status conditions are:

• Not in Loopback - The DSX-1 port is currently not performing a

loopback test and is in normal operating condition.

• Remote Loopback in Progress - A loopback test is currently in

progress.

• Network Looped Back - Indicates that the Remote port is currently

looped toward the T1 link.

• Rem Loopback Passed - Indicates that the Remote Loopback test

passed.

• Rem Loopback Failed - Indicates that the Remote Loopback test

failed.

Test Pattern

Allows the user to select the pattern to use for the loopback test. The available test patterns are:

• All 0s.

• All 1s.

• Alternate 1/0s.

• Incrementing Data.

5.2 THE SAVE NAMES OPTION

You can change the bridge location, network, and the bridge or port user-deﬁned names at the Bridge Information Screen, Figure 5-1.

To access the Bridge Information Screen (if you are not currently at this location):

1. Highlight the RETURN option at the bottom of your present screen.

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2. Press Return. The Bridge Information Screen with the Save Names option will appear. See Figure 5-1.

If two SPIMs are installed in the NB30, you can select which Ethernet Port the Bridge Information Screen will display. You can also assign names to each individual Ethernet port and network. Refer to Section

4.1.1, Selecting the Ethernet Port, for instructions.

To change a name:

1. Use the arrow keys to move to the appropriate field: Bridge Name, Location, Port Name, or Net. Name.

2. Enter the appropriate name (32 alpha/numeric characters available for Bridge, Port, or Net Name; 14 available for Location). Names may be entered in mixed upper and lower case. If you make a mistake when entering a name, use the backspace key to delete individual characters, or use the cursor key to type over an entry in the entire field.

3. Press Return.

4. After completing the appropriate entries, highlight the SAVE NAMES option.

5. Press Return. The message "Bridge Information Screen Parameters Saved" will appear on the screen.

5.3 THE PORT COUNTERS OPTION

The Port Counters option allows you to display a breakdown of data for frames received, forwarded, or discarded at each individual port on the bridge. This screen contains statistical data for analysis. No data or information, however, can be edited or changed at this screen.

To select the Port Counters option:

1. Highlight PORT COUNTERS at the bottom of the Bridge Information Screen.

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2. Press Return. The Bridge Counters Screen, Figure 5-7, will appear, displaying a

breakdown of frames received, frames forwarded, and frames discarded for each individual port on the bridge.

Typical bridge identifying and descriptive data is also displayed in the upper portion of the screen. Refer to the section on General Screen Information in Chapter 3 if you need explanation for these ﬁelds.

5.3.1 The Bridge Counters Screen

The Bridge Counters Screen displays counter information recorded since the bridge was last initialized or reset. Counter information is broken down by port. The following provides brief explanations for the ﬁelds.

06/11/91 12:51:31 NETWORK ERRORS

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 2 Minutes Status: ON_LINE

Port Counters

Collisions: 0 -

Transmissions Aborted: 0 -

Out of Window Collisions: 0 -

CRC Errors: 0 0

Frame Alignment Errors: 0 0

Ethernet Remote

RETURN

Figure 5-7 Bridge Counters Screen

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5.3.1.1 Bridge Counters Screen Fields

Frames Received:

Displays the number of frames received at the port.

Discard Inbound:

Displays the total number of valid frames that were received at the Ethernet port but then ﬁltered by the bridge. Not applicable for the Remote port.

Forward Outbound:

Displays the number of frames forwarded successfully to the appropriate port.

Discard - Lack of Buffers:

Indicates the number of packets that were discarded by the bridge because of a lack of buffer space to maintain the data.

Discard - Transit Delay Exceeded:

Displays the number of frames that were intended for forwarding but were discarded when the maximum time period set for transmission was exceeded.

Discard On Error:

Displays the number of frames received that were greater than 1518 bytes, not including preamble and CRC. Not applicable for the Remote port.

To view a breakdown of the network errors, select the NETWORK ERRORS option at the bottom of the Bridge Counters Screen.

5.3.2 The Network Errors Option

The Network Errors Screen, Figure 5-8, lists the network errors that have occurred per port.

To view the breakdown of these errors:

1. Highlight the NETWORK ERRORS option at the bottom of the Bridge Counters Screen.

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06/11/91 12:51:31 NETWORK ERRORS

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 2 Minutes Status: ON_LINE

Port Counters

Collisions: 0 -

Transmissions Aborted: 0 -

Out of Window Collisions: 0 -

CRC Errors: 0 0

Frame Alignment Errors: 0 0

Ethernet Remote

RETURN

Figure 5-8 Network Errors Screen

2. Press Return. The Network Errors Screen will appear. The following

provides a brief explanation of the network errors fields.

5.3.2.1 Network Errors Screen Fields

Collisions:

Displays the number of transmit collisions that have occurred on the Ethernet port. Not applicable for the Remote port.

Transmissions Aborted:

Displays the number of transmissions that have been aborted due to excessiv e collisions (o ver 16 attempts to transmit the same pack et) for the Ethernet port. Not applicable for the Remote port.

Out of Window Collisions:

Indicates the number of collisions out of the standard collision window (51.2 µsec) due to a network problem. Not applicable for the Remote port.

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CRC Errors:

Indicates the number of packets detected with Cyclical Redundancy Check (CRC) failures.

Frame Alignment Errors:

Indicates the number of errors due to misaligned packets. After you have examined all pertinent counter data, you can return to the

Bridge Counters Screen to select another option by highlighting RETURN and pressing the Return key.

5.4 THE FILTERING DATABASE OPTION

The Filtering Database is composed of three databases: the Permanent Database, the Acquired Database, and the Special Filtering Database. The Permanent and Acquired databases make up the Source Address Table. The Special Database allows you to create additional ﬁlters to screen frames passing through the bridge. See Figure 5-9.

The Permanent Database

This contains addresses that remain in the Source Address Table when the system is shut down. With Local Management for the NB30, the network manager can add to or delete from this database.

The Acquired Database

This consists of address entries that accumulate as part of the Filtering Database while the bridge is up and running. The Acquired Database also contains the addresses that are in the Permanent Database upon startup of the bridge. The entries that accumulate in this database are not saved when the system is shut down. Entries to this database are one of two types: Static or Dynamic.

Dynamic entries are addresses that are added to the Acquired Database through the bridge's learning process. Static entries are addresses that the network manager adds to the Acquired Database. The network manager can also delete both static and dynamic entries from the Acquired Database.

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802.1 FILTERING DATABASE

ACQUIRED

PERMANENT

DYNAMIC

ENTRIES

STATIC

ENTRIES

ACQUIRED DATABASE = PERMANENT DATABASE = 8191 FILTERS TOTAL

SPECIAL FILTERING DATABASE

10 SPECIAL FILTERS

- SOURCE

-DESTINATION

-TYPE FIELD

-8 BYTES IN DATA FIELD

10 FILTERS TOTAL

ENTRIES

BOTH 802.1 AND SPECIAL FILTERING DATABASES

10 SPECIAL FILTERS

SPECIAL

DATABASE

ACQUIRED

PERMANENT

DATABASE

- SOURCE

-DESTINATION

-TYPE FIELD

-8 BYTES IN DATA FIELD

ACQUIRED

DYNAMIC

ENTRIES

STATIC

ENTRIES

PERMANENT

ENTRIES

10 SPECIAL

FILTERS

8191 REGULAR

FILTERS

= 8021 TOTAL FILTERS

Figure 5-9 The Filtering Database

The Special Database

This database allows you to add ﬁlters that will screen packets according to four parameters: destination address, source address, type (protocol), and data ﬁeld. You can use these parameters individually or in combination to ﬁlter and forward speciﬁc packets.

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With the Special Database, a netw ork manager can make sure that packets with a certain protocol do not reach a speciﬁc port on the bridge. In addition, a manager can stop transmission of data from a node to a port or from a node to a node.

To select the Filtering Database option:

1. Using the arrow keys, highlight the FILTERING DATABASE option at the bottom of the screen.

2. Press Return. The Filtering Database Screen, Figure 5-10, will appear.

5.4.1 The Filtering Database Screen

The Filtering Database Screen displays typical bridge description and identiﬁcation data in its top portion. Refer to the section on General Screen Information in Chapter 3 if you need explanation for these ﬁelds.

06/11/91 12:51:31 FILTERNING DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 2 Minutes Status: ON_LINE

Acquired Database

Total Entries: Max Entries: 8191 Max Entries: 2047 a) Statics: 17 Aging Time: None Current Entries: 17 b) Dynamics: 0 Aging Time: 300

Type of filtering: IEEE 802.1

RETURN CREATE ENTRY DELETE ENTRY DISPLAY ENTRY DISPLAY RANGE SAVE SPECIAL DATABASE

Permanent Database

Figure 5-10 Filtering Database Screen

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At this screen, you cannot edit data in any ﬁeld with the exception of the Ageing Time ﬁeld for the Acquired Dynamic Database and the Type of ﬁltering ﬁeld.

Bridge database parameters and statistics for the Acquired and Permanent Databases appear in the middle portion of the screen. Brief explanations for the Acquired and Permanent Database ﬁelds are provided below.

Explanations for the Special Database ﬁelds appear in Section 5.4.2, Special Database Options.

5.4.1.1 Acquired and Permanent Database Screen

Fields

Acquired Database

Total Entries: Indicates the total number of entries in the database. Statics: Contains the number of addresses added to the

Acquired Database by the user or network manager.

Dynamics: Indicates the number of entries that have accumulated

in the Acquired Database through the bridge's learning process.

Max. Entries: Indicates the maximum number of addresses allowed

in the given database.

Ageing T ime: Indicates the length of time, in seconds, allowed for an

address in the Source Address Table to be inactive before it is dropped from the database. Note that the Static entries' Ageing Time cannot be altered from the NONE setting, but the Acquired entries' Ageing Time is user deﬁnable (range is 10 to 1,000,000 seconds).

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Permanent Database

Max. Entries: Indicates the maximum number of addresses allowed

in the given database.

Current Entries: Indicates the number of entries currently recorded in

the bridge's Permanent Database.

5.4.1.2 Editing the Dynamic Ageing Time Field

To edit the Ageing Time ﬁeld:

1. Using the arrow keys, highlight the Dynamic Ageing Time field.

2. Enter the new value (10 to 1,000,000 seconds allowed).

3. Press Return.

4. Highlight the SAVE command at the bottom of the screen.

5. Press Return.

The message "New Ageing Time and Filtering Type Saved" will appear on the screen.

5.4.1.3 Editing the Type of Filtering Field

To edit the Type of ﬁltering ﬁeld:

1. Using the arrow keys, highlight the Type of filtering field.

2. Press the Return key until the appropriate selection appears. The Type of filtering field is a toggle field that alternately displays IEEE 802.1, Special DB, or both.

3. Highlight the SAVE option at the bottom of the Filtering Database screen.

4. Press Return.

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The message "New Ageing Time and Filtering Type Saved" will appear, and the Type of ﬁltering will now be set to the current screen display.

5.4.1.4 The Create Entry Option

The Create Entry option allows you to add an address entry to the Acquired or Permanent database of an individual port of the bridge.

To add an entry to the appropriate database:

1. At the Filtering Database Screen, Figure 5-10, use the arrow keys to

highlight the CREATE ENTRY option at the bottom of screen.

2. Press Return. The Filtering Database Screen with the Create option,

Figure 5-11, will appear.

06/11/91 12:51:31 FILTERNING DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 3 Minutes Status: ON_LINE

Acquired Database

Total Entries: 17 Max Entries: 8191 Max Entries: 2047 a) Statics: 17 Aging Time: None Current Entries: 17 b) Dynamics: 0 Aging Time: 300

Create Entry in Database: Permanent Destination Address: 00-00-00-00-00-00 Action on packets entering Enet Port: Filter

RETURN CREATE DISPLAY RANGE

Permanent Database

Figure 5-11 Filtering Database - Create Entry Screen

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This Filtering Database - Create Entry Screen contains the same information as the previous Filtering Database Screen, but with the addition of four new ﬁelds for entering addresses to the Acquired Database or Permanent Database for the bridge.

To create an entry in the appropriate database:

1. Use the arrow keys to highlight the Create Entry in Database field.

2. Press the Return key until the appropriate database is displayed in the Database field. The database field is a toggle field that alternately displays Acquired and Permanent when you press Return.

3. Highlight the Destination Address field.

4. Enter the Ethernet address of the device you intend to add to the database in hex XX-XX-XX-XX-XX-XX format.

5. Press Return.

6. t the Action on packet entering Enet Port field, toggle the field to the desired option for the packets entering with this destination address. Filter indicates that the packet will not be allowed to pass through the bridge. Relay indicates that the packet will be allowed to pass through the bridge.

7. After you have entered and saved all appropriate parameters at this screen, use the arrow keys to highlight the CREATE option at the bottom of the screen.

8. Press Return. The message "Entry Saved in Database" will appear. If you enter the data unsuccessfully, the message "Entry Already Exists or Database Full" will appear. The entry will be applied to the database and bridge. If an entry already exists, it will be changed to the new value.

To make consecutive entries to the database of the same bridge, repeat steps 1-8 above to complete each additional entry.

NOTE: Any entry created in the Permanent database will also be created in the Acquired database.

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5.4.1.5 The Delete Entry Option

The Delete Entry option allows you to delete an address entry from the Acquired database or from the Permanent database.

To delete an entry from the appropriate database:

1. At the Filtering Database Screen, Figure 5-10, use the arrow keys to

highlight the DELETE ENTRY option at the bottom of the screen.

2. Press Return. The Filtering Database Screen with the Delete option,

Figure 5-12, will appear.

3. Highlight the Database field.

4. Press the Return key until the appropriate database is displayed in the

Database field. The database field is a toggle field that alternately displays Acquired and Permanent when you press Return.

06/11/91 12:51:31 FILTERNING DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 3 Minutes Status: ON_LINE

Acquired Database

Total Entries: 17 Max Entries: 8191 Max Entries: 2047 a) Statics: 17 Aging Time: None Current Entries: 17 b) Dynamics: 0 Aging Time: 300

Delete Database: Permanent Entry: Address: 00-00-00-00-00-00

RETURN DELETE DISPLAY RANGE

Permanent Database

Figure 5-12 Filtering Database - Delete Entry Screen

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5. Highlight the Address field.

6. Enter the Ethernet address (in XX-XX-XX-XX-XX-XX hex format) you intend to delete from the database in the Address field.

7. Press Return.

8. Highlight the DELETE option at the bottom of the screen.

9. Press Return. If you have deleted your entry successfully, the message "Entry Deleted in Database" will appear on the screen. If you were unsuccessful in deleting your entry, the message "Could Not Delete Entry" will appear on the screen.

To make consecutive deletions to the database of the same bridge, repeat steps 1-9 above to delete each additional entry.

NOTE: Any entry deleted from the Permanent database will also be deleted from the Acquired database.

5.4.1.6 The Display Entry Option

The Display Entry option allows you to examine a particular address in the bridge's database. With this option, you can determine whether a packet with the speciﬁed destination address will be forwarded or ﬁltered at a particular port.

To display an entry from the appropriate database:

1. At the Filtering Database Screen, Figure 5-10, use the arrow keys to highlight the DISPLAY ENTRY option at the bottom of the screen.

2. Press Return. The Filtering Database Screen with the Display Entry option available, Figure 5-13, will appear.

3. Highlight the Database field.

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06/11/91 12:51:31 FILTERNING DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 3 Minutes Status: ON_LINE

Acquired Database

Total Entries: 17 Max Entries: 8191 Max Entries: 2047 a) Statics: 17 Aging Time: None Current Entries: 17 b) Dynamics: 0 Aging Time: 300

Delete Database: Permanent Entry: Address: 00-00-00-00-00-00

Address

00-00-1D-00-10-CA Static Filter

RETURN DISPLAY ENTRY

Type Enet Port

Permanent Database

Figure 5-13 Filtering Database - Display Entry Screen

4. Press the Return key until the appropriate database is displayed in the

Database field. The database field is a toggle field that alternately displays Acquired and Permanent when you press Return.

5. Highlight the Address field.

6. Enter the appropriate Ethernet address (XX-XX-XX-XX-XX-XX in

hex format) at the Address field.

7. Press Return.

8. Highlight the DISPLAY ENTRY option at the bottom of the screen.

9. Press Return. If the entered address was not found in the database, the

message “Entry Not Found” will appear. If you have entered a valid address that exists in the selected database, the appropriate information will appear at the bottom of the screen.

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For example, the Entry Type: Static or Dynamic, should be displayed in the Type ﬁeld. The Enet port ﬁeld will identify packets as undergoing either Filter or Relay.

To display another database entry for the bridge, repeat procedures 1-9 above.

5.4.1.7 The Display Range Option

The Display Range option allows you to display a group or range of addresses in the Acquired Database or Permanent Database.

To display a range of addresses for a bridge database:

1. Use the arrow keys to highlight the DISPLAY RANGE option at the bottom of the Filtering Database Screen, Figure 5-10.

2. 2. Press Return. The Filtering Database - Display Range Screen, Figure 5-14, will appear.

06/11/91 12:51:31 FILTERNING DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 3 Minutes Status: ON_LINE

Acquired Database

Total Entries: 17 Max Entries: 8191 Max Entries: 2047 a) Statics: 17 Aging Time: None Current Entries: 17 b) Dynamics: 0 Aging Time: 300

Display Database: Acquired Entry Start Index: 0 Range: Stop Index: 8191

RETURN DISPLAY RANGE

Permanent Database

Figure 5-14 Filtering Database - Display Range Screen

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3. Highlight the Database field.

4. Press the Return key until the appropriate database is displayed in the

Database field. The database field is a toggle field that alternately displays Acquired and Permanent when you press Return.

5. Highlight the Start Index field.

6. Enter the appropriate digit for the address that should appear first in

the Display Range. Index numbers correspond to specific addresses to enable the manager to select a range of addresses quickly. The index count starts at 0.

7. Press Return.

8. Highlight the Stop Index field.

9. Enter the appropriate index number in the Stop Index field for the last

address that should appear in the Display Range.

10. Press Return.

11. Highlight the DISPLAY RANGE option at the bottom of the screen.

12. Press Return. The Filtering Database - Display Entry Range Screen,

Figure 5-15, will appear, displaying the list of addresses and related information included in the range you selected. This screen is for display only; no data can be changed or updated at this screen.

13. To view the next screen or previous screen of addresses highlight the

NEXT PAGE or PREVIOUS PAGE option at the bottom of the screen.

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06/11/91 12:51:31 FILTERNING DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 4 Minutes Status: ON_LINE

Display Entry Range - Start Index: 0 Stop Index: 8191

Index 0 01-80-C2-00-00-02 Static Filter 1 01-80-C2-00-00-03 Static Filter 2 01-80-C2-00-00-05 Static Filter 3 01-80-C2-00-00-06 Static Filter 4 01-80-C2-00-00-07 Static Filter 5 01-80-C2-00-00-08 Static Filter 6 01-80-C2-00-00-09 Static Filter 7 01-80-C2-00-00-0A Static Filter 8 01-80-C2-00-00-0B Static Filter 9 01-80-C2-00-00-0C Static Filter

NEXT PAGE RETURN

Address Type Enet Port

Figure 5-15 Sample Filtering Database - Display Entry Range Screen

5.4.2 The Special Database Option

To select the Special Database Option:

1. Using the arrow keys, highlight the SPECIAL DATABASE option at the bottom of the Filtering Database Screen, Figure 5-10.

2. Press Return. The Special Database Screen, Figure 5-16, will appear.

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06/11/91 12:51:31 SPECIAL DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 4 Minutes Status: ON_LINE

# Enable Enet Port Dest Address Source Addr Type Data Field

1 No Filter XXXXXXXXXXXX XXXXXXXXXXXX XXXX XXXXXXXXXXXXXX

RETURN ADD FILTER

Figure 5-16 Special Database Screen

5.4.2.1 The Special Database Screen Fields

Enable

Enables or Disables the ﬁlter. Yes enables the ﬁlter. No disables the ﬁlter. Default is No.

Enet Port

Sets the Ethernet Ports to ﬁlter or forward packets. Filter sets Ethernet Ports for ﬁltering. Relay sets Ethernet Ports for forwarding. Default is Filter.

Dest Address

Sets the Special Database to ﬁlter packets with a speciﬁc Destination Address (must be ﬁlled by 12 hexadecimal digits or Xs, which represent any wildcard characters).

Source Addr

Sets the Special Database to ﬁlter packets with a speciﬁc Source Address (must be ﬁlled by 12 hexadecimal digits or Xs, which represent any wildcard characters).

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Type

Sets the Special Database to ﬁlter packets with a speciﬁc Type ﬁeld (must be ﬁlled by 12 hexadecimal digits or Xs, which represent any wildcard characters).

Data Field

Sets the Special Database to ﬁlter packets based on the ﬁrst 8 bytes of data in the packet (must be ﬁlled by 16 hexadecimal digits or Xs, which represent any wildcard characters).

5.4.2.2 Adding Special Database Filters

A Special Database ﬁlter has four ﬁelds: the Destination Address ﬁeld, the Source Address ﬁeld, the Type ﬁeld, and the Data ﬁeld. When setting a ﬁlter, you can use these ﬁelds individually or in combination.

CAUTION: Do not set and enable a Special Filtering Database ﬁlter to its default value of all Xs in all ﬁelds. If enabled, the NB30 will ﬁlter all network trafﬁc passing through it.

To add a ﬁlter to the Special Database:

1. Highlight the ADD FILTER option at the bottom of the Special Database Screen, Figure 5-16.

2. Press Return. The Special Database - Save Filter Screen, Figure 5-17, will appear.

3. Using the arrow keys, highlight the Enable field.

4. Press the Return key until YES appears. The Enable field is a toggle field that alternately displays YES and NO when you press Return.

5. Highlight the Enet Port field, and toggle to the desired option, Filter or Relay.

6. If you desire, highlight the Destination Address field.

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06/11/91 12:51:31 SPECIAL DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 4 Minutes Status: ON_LINE

# Enable Enet Port Dest Address Source Addr Type Data Field

1 Yes Filter XXXXXXXXXXXX XXXXXXXXXXXX XXXX XXXXXXXXXXXXXX 2 No Filter XXXXXXXXXXXX XXXXXXXXXXXX XXXX XXXXXXXXXXXXXX 3 Yes Filter XXXXXXXXXXXX XXXXXXXXXXXX XXXX XXXXXXXXXXXXXX 4 No Filter XXXXXXXXXXXX XXXXXXXXXXXX XXXX XXXXXXXXXXXXXX

# Enable Enet Port Dest Address Source Addr Type Data Field 5 No Filter XXXXXXXXXXXX XXXXXXXXXXXX XXXX XXXXXXXXXXXXXX

RETURN SAVE FILTER

Figure 5-17 Special Database - Save Filter Screen

7. Enter the network address you want to use as the Destination Address

filter, and press Return. Be sure to fill all unused characters with Xs, which represent any character.

8. If you desire, highlight the Source Address field.

9. Enter the network address you want to use as the Source Address filter,

and press Return. Be sure to fill all unused characters with Xs, which represent any character.

10. If you desire, highlight the Type field.

11. Enter the protocol type field you want to use as the filter, and press

Return. Be sure that any unused characters are filled with Xs, which represent any number.

12. If you desire, highlight the Data Field.

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13. Enter the Data field that you want to use as the filter, and press Return. Be sure that any unused characters are filled with Xs, which represent any number.

14. After you have filled in the specific field or fields that you want to use as a filter, highlight the SAVE FILTER command at the bottom of the screen.

15. Press Return.

Your ﬁlter has been enabled and entered in the Special Database. Packets with the speciﬁc Destination and Source Addresses, and Type and Data ﬁelds entering the bridge through the Ethernet Ports will be ﬁltered or relayed.

5.4.2.3 Deleting Special Database Filters

To delete a Special Database ﬁlter:

1. Using the arrow keys, highlight the number (#) of the filter you wish to delete.

2. Press Return. The Special Database - Delete Filter screen, Figure 5-18, will appear, with the filter you have chosen to delete in the lower half of the screen.

3. Highlight the DELETE FILTER command at the bottom of the screen.

4. Press Return. The filter has been deleted. Highlight the RETURN command at the bottom of the screen to return to the Special Database

- Add Filter screen.

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06/11/91 12:51:31 SPECIAL DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 0 Days 0 Hours 10 Minutes Status: ON_LINE

# Enable Enet Port Dest Address Source Addr Type Data Field

# Enable Enet Port Dest Address Source Addr Type Data Field 5 No Filter XXXXXXXXXXXX XXXXXXXXXXXX XXXX XXXXXXXXXXXXXX

RETURN SAVE FILTER DELETE FILTER

Figure 5-18 Special Database - Delete Filter Screen

5.4.2.4 Editing Special Database Filters

To edit a Special Database ﬁlter:

1. Use the arrow keys to highlight the number (#) of the filter you want

to edit.

2. Press Return. The Special Database - Delete Filter screen, Figure

5-18, will appear with the filter you have chosen to edit in the lower half of the screen.

3. Make any desired changes in the Enable and Enet Port fields by

toggling to the desired options with the Return key.

4. Make any desired changes to the Destination Address, Source

Address, or Type, or Data fields by typing in the desired values and pressing Return.

5. Highlight the SAVE FILTER command at the bottom of the screen.

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6. Press Return. The desired changes have been made to the filter, and you return to the Special Database - Add Filter screen.

5.5 THE BRIDGE PROTOCOL OPTION

The Bridge Protocol option allows you to display bridge protocol parameters. You can use this option to edit certain parameters of your bridge. For example, you can change the time interval between transmission of BPDUs, Bridge Forward Delay Time, or the maximum time or age of protocol data before the data is discarded. The portion of the bridge identiﬁer used in priority comparisons can also be edited.

If the Spanning T ree Algorithm is disabled, all parameters associated with the Bridge Protocol option will be displayed as zero.

NOTE: Bridge Protocol Parameters can be altered while the Spanning Tree Algorithm is disabled. When the Spanning Tree Algorithm is enabled, and the bridge is restarted, all new values will be used by the bridge. Any values not changed will be set at their default values.

5.5.1 Bridge Protocol Parameters Screen

At the Bridge Protocol Parameters Screen, Figure 5-19, you can examine protocol parameters for the bridge, or you can change bridge protocol parameters in the Bridge Max Age, Bridge Hello Time, Bridge Forward Delay, or Bridge Priority ﬁelds. You can also display or change protocol parameters for the bridge's ports.

To display protocol parameters for the bridge, or to make changes to the appropriate protocol parameters:

1. From the Bridge Information Screen, use the arrow keys to highlight the BRIDGE PROTOCOL option at the bottom of the screen.

2. Press Return. The Bridge Protocol Parameters Screen, Figure 5-19, will appear.

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06/11/91 12:51:31 SPECIAL DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes Status: ON_LINE

Bridge ID: 00-00-00-00-1D-00-10-CA Time Since Topology Change: 0

Topology Change Count: 1 Topology Change: 0

Root Cost: 0 Desig. Root: 00-00-00-00-1D-00-10-CA

Root Port: 0 Max Age: 20 Hold Time: 1

Hello Time: 2 Forward Delay: 15

Bridge Max Age: 20 Bridge Hello Time: 2

Bridge Forward Delay: 15 Bridge Priority: 8000

RETURN SAVE PORT PARAMETERS

Figure 5-19 Bridge Protocol Parameters Screen

The Bridge Protocol Parameters Screen displays typical bridge description and identiﬁcation data in the top portion of the screen for the bridge. Refer to the section on General Screen Information in Chapter 3 if you need explanation for these ﬁelds.

The ﬁelds displayed on the rest of the screen indicate the protocol parameters for the bridge. Only four of these ﬁelds contain data that can be changed or updated: Bridge Max Age, Bridge Hello Time, Bridge Forward Delay, and Bridge Priority ﬁelds. The following provides brief explanations for all protocol ﬁelds that appear on this screen.

5.5.1.1 Bridge Protocol Parameters Screen Fields

Bridge ID:

Displays the unique bridge identiﬁer of the bridge. The identiﬁer consists of the Bridge Priority and Ethernet Address of the bridge.

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Topology Change Count:

Indicates the number of times the bridge's Topology Change ﬂag has been changed since the bridge was powered up or initialized.

Root Cost:

Indicates the value or cost of the data path from the bridge to the root bridge.

Root Port:

Displays the port identiﬁer for the port that provides the lowest cost path to the root.

Hello Time:

Indicates, in seconds, the length of time the root bridge, or bridge attempting to become the root, waits before resending conﬁguration BPDUs.

Bridge Max Age:

If the bridge is the root bridge, or is attempting to become the root, this ﬁeld displays information that indicates the maximum time a BPDU can exist before it is discarded. The default value for this ﬁeld is 20 seconds.

Bridge Forward Delay:

If the bridge is the root bridge, or is attempting to become the root, this ﬁeld displays the time period the bridge will spend in the listening state, i.e., listening to BPDU activity on the network while moving from the blocking to the learning state. The time displayed also indicates the time spent in the learning state while moving from the listening to the forwarding state. The default value for this ﬁeld is 15 seconds.

Time Since Topology Change:

Indicates, in seconds, the time that has elapsed since the bridge's Topology Change Flag last recorded the value of a topology change.

Topology Change:

Indicates if a bridge topology change is in progress. This ﬁeld will display 0 or 1; A 0 indicates that no change is occurring. A 1 indicates that a change is occurring.

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Desig. Root:

Displays the unique bridge identiﬁer of the bridge that is assumed to be the root.

Max. Age:

Displays the maximum time protocol information will be kept before it is discarded.

Hold Time:

Displays, in seconds, the minimum time period that elapses between the transmission of conﬁguration BPDUs through the bridge.

Forward Delay:

Displays the time period the bridges will spend in the listening state, listening to BPDU activity on the network, while the bridge moves to the learning state. The time displayed in this ﬁeld also indicates the time spent in the learning state, while the bridge moves from the listening to the forwarding state.

Bridge Hello Time:

When the bridge is the root bridge, or is attempting to become the root, the data in this ﬁeld indicates the length of time the bridge waits between sending conﬁguration BPDUs. The default value for this ﬁeld is 2 seconds.

Bridge Priority:

Displays the part of the bridge address that contains the identiﬁer used in Spanning Tree for priority comparisons. The default value for this ﬁeld is 8000 when the Root Switch is off.

5.5.1.2 Editing the Bridge Protocol Parameters Screen

Fields

If you intend to change the Bridge Max Age, Bridge Forward Delay, or the Bridge Hello Time ﬁelds, refer to Table 5-1, Optimal Bridge Max Age Parameters. This table provides a range of values to which the Bridge Max Age time ﬁeld should be set, given allowable Bridge Max Age or Bridge Forward Delay times. This will ensure that the NB30 will operate effectively in a Spanning Tree Algorithm environment. For example, if Bridge Forward Delay is set to 15 seconds and Bridge Hello Time is set to 6 seconds, Bridge Max Age should be set to a value between 14 and 28 seconds.

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Table 5-1 Optimal Bridge Max. Age Parameters

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These values will ensure that the NB30 will operate effectively in a Spanning Tree Algorithm environment.

Changing Root Bridge Max Age Time

If the bridge is the root bridge, and you want to change the maximum time that bridge protocol information will be kept before it is discarded:

1. Use the arrow keys to highlight the Bridge Max Age field.

2. Enter the new time at this field, in seconds. A time of 6 to 40 seconds

is allowed.

3. Press Return.

Changing Root Bridge Forward Delay Time

If the bridge is the root bridge, or is attempting to become the root, and you want to change the time period the bridge will spend in the listening state, i.e., listening to BPDU activity on the network while moving from the blocking to the learning state:

1. Use the arrow keys to highlight the Bridge Forward Delay field.

2. Enter the new time at this field, in seconds. A time of 4 to 30 seconds

is allowed.

3. Press Return.

NOTE: The time displayed also affects the time spent in the learning state while the bridge is moving from the listening to the forwarding state.

Changing Root Bridge Hello Time

If the bridge is the root bridge, or is attempting to become the root, and you want to change the length of time the bridge waits between sending conﬁguration BPDUs:

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1. Use the arrow keys to highlight the Bridge Hello Time field.

2. Enter the new time at this field, in seconds. A time of 1 to 10 seconds is allowed.

3. Press Return.

Changing Bridge Priority

If you want to change the part of the bridge address that contains the identiﬁer used in the Spanning Tree Algorithm for priority comparisons:

1. Use the arrow keys to highlight the Bridge Priority field (allowed range is 0 - FFFF).

2. Enter the new identifier, in hex, at this field.

3. Press Return.

Saving Your Changes

After you have entered all necessary changes at the appropriate ﬁelds:

1. Highlight the SAVE option at the bottom of the screen.

2. Press Return to record the changes.

5.5.2 The Port Parameters Option

The Port Parameters option allows you to display bridge port information and protocol parameters similar to the information provided at the Bridge Parameters Screen for the Bridge. To access the Port Parameters option:

1. Highlight the PORT PARAMETERS option at the bottom of the screen.

2. Press Return. The Bridge Port Parameters Screen, Figure 5-20, will appear.

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06/11/91 12:51:31 SPECIAL DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30 Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00 Location: LOCAL HW Version: 1 Uptime: 01 Days 01 Hours 33 Minutes Status: ON_LINE

Local Port Priority: 80 80 Uptime: 93407 93407 Port State: FORWARDING FORWARDING Path Cost: 1500 1500 Designated Root: 00-00-00-00-1D-00-10-CA 00-00-00-00-1D-00-10-CA Designated Cost: 0 0 Designated Bridge: 00-00-00-00-1D-00-10-CA 00-00-00-00-1D-00-10-CA Designated Port: 8001 8001 Topology Change Acknowledge: 0 0

RETURN SAVE

Remote

Figure 5-20 Bridge Port Parameters Screen

5.5.2.1 The Bridge Port Parameters Screen

The Bridge Port Parameters Screen displays bridge identiﬁcation data in the top portion of the screen. Refer to the section on General Screen Information in Chapter 3 if you need an explanation for these ﬁelds.

Two of the ﬁelds contain data that can be updated or changed: the Port Priority and Path Cost ﬁelds. The following lists brief explanations for these two ﬁelds and the remaining display ﬁelds at the Bridge Port Parameters Screen.

On the screen, two data columns are provided to the right of each of the ﬁelds to display the respective data for the Ethernet port of both the Local and Remote NB30.

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5.5.2.2 Bridge Port Parameters Screen Fields

Port Priority:

Displays the part of the port identiﬁer which is used with the Spanning Tree Algorithm when determining which port in a LAN segment has priority. This information can be edited to change topology if needed.

Uptime:

Displays the time that has elapsed, in seconds, since the individual port was last reset or initialized.

Port State:

Indicates whether the indicated port is disabled, listening, learning, forwarding, or blocking.

Path Cost:

Displays the contributory cost of the applicable port to the overall cost of the path, when the indicated port is the port on the bridge closest to the root (the root port).

A change to this parameter can be made to effect a needed change in path cost and bridge topology.

Designated Root:

Displays the unique bridge identiﬁer of the bridge that is assumed to be the root bridge on the network.

Designated Cost:

Displays the cost of the path of this port to the root bridge on the network.

Designated Bridge:

Displays the network address of the bridge that is assumed to be the root bridge on the network.

Designated Port:

Displays port identiﬁer information for the bridge port that is assumed to be the designated port.

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Topology Change Acknowledgment:

Indicates the new value of the Topology Change Acknowledgment ﬂag that will be transmitted by the designated bridge in the next conﬁguration BPDU on the associated port. This ﬁeld will display 0 or 1. A 0 indicates that no change is occurring; A 1 indicates that a change is occurring.

5.5.2.3 Editing the Bridge Port Parameters Screen

Fields

Changing the Port Priority

To change the part of the port priority referred to for priority comparisons:

1. Use the arrow keys to highlight the Port Priority field.

2. Enter the appropriate identifier at this field. Only valid hex characters

(0 - FF) are allowed.

3. Press Return.

Changing the Path Cost

If a change in the designated port or bridge would beneﬁt the LAN for the bridge, change the contribution of the path through the root port by :

1. Using the arrow keys to highlight the Path Cost field.

2. Enter the new numeric value in the field, from 1 to 65,535.

3. Press Return.

Saving Your Changes

After you have entered all necessary changes at the appropriate ﬁelds:

1. Highlight the SAVE option at the bottom of the screen.

2. Press Return to record the changes. If a change in topology results, the change will be indicated in the

Topology Change Acknowledge ﬁeld.

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APPENDIX A

ERROR MESSAGES

MESSAGE ON SCREEN DESCRIPTION

Illegal Time Entered Time must be entered in hh:mm:ss

format.

Illegal Date Entered Date must be entered in mm/dd/yy

format.

Too Many Characters Entered User has entered more characters than

ﬁeld can hold.

Illegal Numeric Value Entered User has entered a non-numeric

character in a numeric ﬁeld.

Illegal Ethernet Address Address must be entered in

xx-xx-xx-xx-xx-xx format.

Bridge Information Screen User hit SAVE on the Bridge Parameters Saved Information screen.

Bridge Setup Screen User hit SAVE on the Bridge Setup Parameters Saved screen.

DSX-1 Setup Screen User hit SAVE on the DSX-1 Port Setup Parameters Saved screen.

New Ageing Time and User hit SAVE on the Filtering Database Filtering Type Saved main screen.

Ageing Time Entered User hit SAVE on the Filtering Database Not In The Proper Ranger main screen, and the ageing time is not

in the range of 10-1,000,000.

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Appendix A

MESSAGE ON SCREEN DESCRIPTION

Entry Saved In Database User hit CREATE ENTRY on the

Filtering Database screen or SAVE FILTER on the Special Database - Save Filter screen and the entry address was saved in the database.

Entry Already Exists, or User hit CREATE ENTRY on the Database Full Filtering Database screen, and the entry

address already exists or the database is full.

Entry Deleted in Database User hit DELETE ENTRY on the

Filtering Database screen or DELETE FILTER on the Special Database Delete Filter screen, and the entry was deleted.

Could Not Delete Entry User hit DELETE ENTRY on the

Filtering Database screen or DELETE FILTER on the Special Database Delete Filter screen, and the entry address is reserved or does not exist.

Entry Not Found User hit DISPLAY ENTRY on the

Filtering Database screen, and the entry address was not found in the database.

Invalid Password Entered User entered incorrect password on the

Logo or Bridge Password screen.

New Password Veriﬁed Error Message will display on Bridge

Password screen, when user enters a password at the second password prompt that does not match the original new password entered.

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Appendix A

MESSAGE ON SCREEN DESCRIPTION

New Password Saved The new password entered has passed

the new password veriﬁcation on the Bridge Password screen.

Refresh Time Must be An incorrect time of 0 was entered into Greater Than 0 the Refresh Time ﬁeld. It must be in the

range of 1-9,999 seconds.

Database is Full User hit ADD FILTER on the Special

Database - Add Filter screen, and the Special Database is full.

Entry Already Exists User hit SAVE FILTER on the Special

Database - Save Filter screen or the Special Database - Delete Filter screen, and the entry data already exists.

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Appendix A

A-4

Cabletron Systems NB30, NB30/LM User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual