Cabletron Systems NB30, NB30/LM User Manual

Download

NB30/LM

LOCAL MANAGEMENT

FOR THE CABLETRON SYSTEMS

NB30 BRIDGE

USER’S MANUAL

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

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.

NOTICE

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

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

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

1-1

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’

1-2

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'

1-3

INTRODUCTION

1-4

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

2-1

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

2-2

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)

2-3

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.

2-4

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.

2-5

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

2-6

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.

3-1

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.

3-2

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

3-3

USING LOCAL MANAGEMENT

3-4

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

4-1

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.

4-2

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.

4-3

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.

4-4

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.

4-5

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

Cabletron Systems NB30, NB30/LM User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual