Nortel Networks 5000BH User Manual

Using the 8-port TokenSpeed and TokenSpeed/MCP Switch Modules

Part No. 893-01019-A June 1997

4401 Great America Parkway 8 Federal Street Santa Clara, CA 95054 Billerica, MA 01821

Trademarks

Bay Networks is a registered trademark of Bay Networks, Inc. Bay Networks Press, Centillion 50, Centillion 100, SpeedView , and Tok enSpeed are trademarks of Bay Netw orks, Inc. Other brand and product names are registered trademarks or trademarks of their respective holders.

Statement of Conditions

In the interest of improving internal design, operational function, and/or reliability, Bay Networks, Inc. reserves the right to make changes to the products described in this document without notice.

Federal Communications Commission (FCC) Statement

Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy. If it is not installed and used in accordance with the instruction manual, it may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to take whatever measures may be necessary to correct the interference at their own expense.

EN 55 022 Declaration of Conformance

This is to certify that the Bay Networks TokenSpeed module and TokenSpeed/MCP module are shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022 Class A (CISPR 22).

Compliance is dependent upon the use of shielded AC power cables.

Warning:

interference, in which case, the user may be required to take appropriate measures.

This is a Class A product. In a domestic environment, this product may cause radio

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Voluntary Control Council for Interference (VCCI) Statement

This equipment is in the ﬁrst category (information equipment to be used in commercial and/or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Ofﬁce Machines that are aimed at preventing radio interference in commercial and/or industrial areas.

Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio interference may be caused to equipment such as radios and TV receivers.

Declaration of Conformity

These products conform to the provisions of Council Directive 89/336/EEC and 72/23/EEC. The Declaration of Conformity is available on the Bay Networks World Wide Web site at www.baynetworks.com.

Bay Networks, Inc. Software License Agreement

NOTICE:

installing the hardware unit with pre-enabled software (each of which is referred to as “Software” in this Agreement). BY COPYING OR USING THE SOFTWARE, YOU A CCEPT ALL OF THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT. THE TERMS EXPRESSED IN THIS AGREEMENT ARE THE ONLY TERMS UNDER WHICH BAY NETWORKS WILL PERMIT YOU TO USE THE SOFTWARE. If you do not accept these terms and conditions, return the product, unused and in the original shipping container, within 30 days of purchase to obtain a credit for the full purchase price.

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nonexclusive, nontransferable license: (a) to use the Software either on a single computer or, if applicable, on a single authorized device identiﬁed by host ID, for which it was originally acquired; (b) to copy the Software solely for backup purposes in support of authorized use of the Software; and (c) to use and copy the associated user manual solely in support of authorized use of the Software by Licensee. This license applies to the Software only and does not extend to Bay Networks Agent software or other Bay Networks software products. Bay Networks Agent software or other Bay Networks software products are licensed for use under the terms of the applicable Bay Networks, Inc. Software License Agreement that accompanies such software and upon payment by the end user of the applicable license fees for such software.

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Networks and/or its licensors retain all title and ownership in both the Software and user manuals, including any revisions made by Bay Networks or its licensors. The copyright notice must be reproduced and included with an y copy of any portion of the Software or user manuals. Licensee may not modify, translate, decompile, disassemble, use for any competitive analysis, re verse engineer, distribute, or create derivativ e w orks from the Softw are or user manuals or any copy, in whole or in part. Except as expressly provided in this Agreement, Licensee may not copy or transfer the Software or user manuals, in whole or in part. The Software and user manuals embody Bay Networks’ and its licensors’ conﬁdential and proprietary intellectual property. Licensee shall not sublicense, assign, or otherwise disclose to any third party the Software, or any information about the operation, design, performance, or implementation of the Software and user manuals that is conﬁdential to Bay Networks and its licensors; however, Licensee may grant permission to its consultants, subcontractors, and agents to use the Software at Licensee’s f acility, provided they have agreed to use the Software only in accordance with the terms of this license.

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3. Limited warranty.

installed and operated on Bay Networks hardware or other equipment it is originally licensed for, to function substantially as described in its accompanying user manual during its warranty period, which begins on the date Software is ﬁrst shipped to Licensee. If any item of Software fails to so function during its warranty period, as the sole remedy Bay Networks will at its discretion provide a suitable ﬁx, patch, or workaround for the problem that may be included in a future Software release. Bay Networks further warrants to Licensee that the media on which the Software is provided will be free from defects in materials and workmanship under normal use for a period of 90 days from the date Software is ﬁrst shipped to Licensee. Bay Networks will replace defective media at no charge if it is returned to Bay Networks during the warranty period along with proof of the date of shipment. This warranty does not apply if the media has been damaged as a result of accident, misuse, or abuse. The Licensee assumes all responsibility for selection of the Software to achieve Licensee’s intended results and for the installation, use, and results obtained from the Software. Bay Networks does not warrant (a) that the functions contained in the software will meet the Licensee’s requirements, (b) that the Software will operate in the hardware or software combinations that the Licensee may select, (c) that the operation of the Software will be uninterrupted or error free, or (d) that all defects in the operation of the Software will be corrected. Bay Networks is not obligated to remedy any Software defect that cannot be reproduced with the latest Software release. These warranties do not apply to the Software if it has been (i) altered, except by Bay Networks or in accordance with its instructions; (ii) used in conjunction with another vendor’ s product, resulting in the defect; or (iii) damaged by improper environment, abuse, misuse, accident, or negligence. THE FOREGOING WARRANTIES AND LIMITATIONS ARE EXCLUSIVE REMEDIES AND ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Licensee is responsible for the security of its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered ﬁles, data, or programs.

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5. Government Licensees.

or on behalf of the United States Government. The Software and documentation are commercial products, licensed on the open market at market prices, and were developed entirely at private expense and without the use of any U.S. Government funds. The license to the U.S. Government is granted only with restricted rights, and use, duplication, or disclosure by the U.S. Government is subject to the restrictions set forth in subparagraph (c)(1) of the Commercial Computer Software––Restricted Rights clause of FAR 52.227-19 and the limitations set out in this license for civilian agencies, and subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause of DFARS

252.227-7013, for agencies of the Department of Defense or their successors, whichever is applicable.

6. Use of Software in the European Community.

European Community. If Licensee uses the Software within a country in the European Community, the Software Directive enacted by the Council of European Communities Directive dated 14 May, 1991, will apply to the examination of the Software to facilitate interoperability . Licensee agrees to notify Bay Networks of an y such intended examination of the Software and may procure support and assistance from Bay Networks.

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Networks’ copyright in the Software and user manuals will cease being effective at the date of expiration of the Bay Networks copyright; those restrictions relating to use and disclosure of Bay Networks’ conﬁdential information shall continue in effect. Licensee may terminate this license at any time. The license will automatically terminate if Licensee fails to comply with any of the terms and conditions of the license. Upon termination for any reason, Licensee will immediately destroy or return to Bay Networks the Software, user manuals, and all copies. Bay Networks is not liable to Licensee for damages in any form solely by reason of the termination of this license.

Bay Networks warrants each item of Software, as delivered by Bay Networks and properly

IN NO EVENT WILL BAY NETWORKS OR ITS LICENSORS BE LIABLE FOR ANY

This provision applies to all Software and documentation acquired directly or indirectly by

This provision applies to all Software acquired for use within the

This license is effective until terminated; ho we ver, all of the restrictions with respect to Bay

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8. Export and Re-export.

or information without ﬁrst obtaining any required export licenses or other governmental approvals. Without limiting the foregoing, Licensee, on behalf of itself and its subsidiaries and afﬁliates, agrees that it will not, without ﬁrst obtaining all export licenses and approvals required by the U.S. Government: (i) export, re-export, transfer, or divert any such Software or technical data, or any direct product thereof, to any country to which such exports or re-exports are restricted or embargoed under United States export control laws and regulations, or to any national or resident of such restricted or embargoed countries; or (ii) provide the Software or related technical data or information to any military end user or for any military end use, including the design, development, or production of any chemical, nuclear, or biological weapons.

9. General.

jurisdiction, the remainder of the provisions of this Agreement shall remain in full force and effect. This Agreement will be governed by the laws of the state of California.

Should you have any questions concerning this Agreement, contact Bay Networks, Inc., 4401 Great America Parkway , P.O. Box 58185, Santa Clara, California 95052-8185.

LICENSEE ACKNOWLEDGES THAT LICENSEE HAS READ THIS AGREEMENT, UNDERSTANDS IT, AND AGREES TO BE BOUND BY ITS TERMS AND CONDITIONS. LICENSEE FURTHER AGREES THAT THIS AGREEMENT IS THE ENTIRE AND EXCLUSIVE AGREEMENT BETWEEN BAY NETWORKS AND LICENSEE, WHICH SUPERSEDES ALL PRIOR ORAL AND WRITTEN AGREEMENTS AND COMMUNICATIONS BETWEEN THE PARTIES PERTAINING TO THE SUBJECT MATTER OF THIS AGREEMENT. NO DIFFERENT OR ADDITIONAL TERMS WILL BE ENFORCEABLE AGAINST BAY NETWORKS UNLESS BAY NETWORKS GIVES ITS EXPRESS WRITTEN CONSENT, INCLUDING AN EXPRESS WAIVER OF THE TERMS OF THIS AGREEMENT.

If any provision of this Agreement is held to be invalid or unenforceable by a court of competent

Licensee agrees not to export, directly or indirectly, the Software or related technical data

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Contents

Preface

Purpose ...........................................................................................................................xiii

Audience ..........................................................................................................................xiii

Conventions .....................................................................................................................xiv

Special Message Formats .........................................................................................xiv

Two-tiered Procedure Format ....................................................................................xiv

Related Publications ........................................................................................................ xv

Ordering Bay Networks Publications ...............................................................................xv

Bay Networks Customer Support ....................................................................................xvi

How to Get Help ..............................................................................................................xvi

For More Information ......................................................................................................xvii

Chapter 1 Overview of the TokenSpeed Module

About the TokenSpeed Module .......................................................................................1-1

Features .........................................................................................................................1-2

TokenSpeed Module Ports and Connectivity ...........................................................1-2

Filtering ....................................................................................................................1-3

Caching and Proxy ...................................................................................................1-3

Fault Tolerance .........................................................................................................1-3

Network Management ..............................................................................................1-3

Physical Description .......................................................................................................1-4

Chapter 2 TokenSpeed Module Applications

Giving a Server a Dedicated Port ...................................................................................2-1

Segmenting a Ring .........................................................................................................2-2

Connecting a Segment Through the RI or RO Port ..................................................2-3

Connecting a Segment Using a Lobe Port ...............................................................2-4

Replacing a Source Route Bridge or Router ..................................................................2-5

Concentrating Rings into a Router .................................................................................2-5

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Chapter 3 Installing and Connecting the TokenSpeed Module

Preparing for Installation .................................................................................................3-1

Installing the TokenSpeed Module ..................................................................................3-2

Connecting Cables to TokenSpeed Ports .......................................................................3-5

Token Ring Connections ..........................................................................................3-6

Verifying the Installation ..................................................................................................3-7

TokenSpeed Module LEDs .......................................................................................3-8

LED Switch Startup Sequence .................................................................................3-8

Conﬁguring the TokenSpeed Module ..............................................................................3-9

Removing and Replacing a Module ..............................................................................3-11

Replacing a TokenSpeed/MCP Module ..................................................................3-12

Replacing a TokenSpeed Module ...........................................................................3-14

Chapter 4 Troubleshooting the TokenSpeed Module

Switch Startup Failure with TokenSpeed/MCP ...............................................................4-2

TokenSpeed Module Startup Failure ..............................................................................4-3

Port Insertion Problems ..................................................................................................4-4

Appendix A Technical Speciﬁcations

Appendix B Cables

Port Types ......................................................................................................................B-2

Cable Types ................................................................................................................... B-2

Token Ring Connectors on the TokenSpeed Module ..................................................... B-3

Cable and Connector Pin Assignments ......................................................................... B-4

RJ-45 to RJ-45 Connection ..................................................................................... B-5

RJ-45 to DB-9 Connection ...................................................................................... B-8

RJ-45 to IBM Type 1 Connection ........................................................................... B-11

Serial MCP Connections ............................................................................................. B-13

Index

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Figures

Figure 1-1. Hardware features of the TokenSpeed module ........................................1-4

Figure 2-1. Giving a server a dedicated port ..............................................................2-2

Figure 2-2. Connecting a ring segment through an RI/RO port (ring segment 2) ......2-3

Figure 2-3. Connecting ring segments through lobe ports .........................................2-4

Figure 2-4. Replacing a source route bridge or router ...............................................2-5

Figure 2-5. Concentrating multiple rings into a router ................................................2-6

Figure 3-1. Removing a ﬁller panel ............................................................................3-3

Figure 3-2. Inserter/extractor levers ready for installation ..........................................3-3

Figure 3-3. Slot module guides ..................................................................................3-4

Figure 3-4. Inserting the module into the chassis ......................................................3-4

Figure 3-5. Seating the module ..................................................................................3-5

Figure 3-6. Connecting a cable to an RJ-45 port on the TokenSpeed module ...........3-6

Figure 3-7. Connecting the serial MCP cable to the TokenSpeed/MCP .....................3-7

Figure 3-8. TokenSpeed module LEDs ......................................................................3-8

Figure 3-9. Loosening the TokenSpeed module .......................................................3-12

Figure 3-10. Removing the module from the switch chassis ......................................3-13

Figure 3-11. Loosening the TokenSpeed module .......................................................3-14

Figure 3-12. Removing the module from the Centillion chassis .................................3-15

Figure B-1. RJ-45 connector on the TokenSpeed module ......................................... B-3

Figure B-2. Connectors for token ring network cables ............................................... B-4

Figure B-3. Hub to station connection (RJ-45 to RJ-45) ............................................ B-5

Figure B-4. Station to hub connection (RJ-45 to RJ-45) ............................................ B-6

Figure B-5. Bay/SNPX RO to RI connection (RJ-45 to RJ-45) .................................. B-6

Figure B-6. RI–other to RO connection (RJ-45 to RJ-45) .......................................... B-7

Figure B-7. RO–other to RI connection (RJ-45 to RJ-45) .......................................... B-7

Figure B-8. Hub to station connection (RJ-45 to DB-9) ............................................. B-8

Figure B-9. Station to hub connection (RJ-45 to DB-9) ............................................. B-9

Figure B-10. Bay/SNPX RO to RI connection (RJ-45 to DB-9) ................................... B-9

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Figure B-11. RI–other to RO connection (RJ-45 to DB-9) ......................................... B-10

Figure B-12. RO–other to RI connection (RJ-45 to DB-9) ......................................... B-10

Figure B-13. Station to hub connection (RJ-45 to IBM Type 1) .................................. B-11

Figure B-14. Bay/SNPX RO to RI connection (RJ-45 to IBM Type 1) ........................ B-12

Figure B-15. RI–other to RO connection (RJ-45 to IBM Type 1) ................................ B-12

Figure B-16. RO–other to RI connection (RJ-45 to IBM Type 1) ................................ B-13

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Tables

Table 1. Related publications .................................................................................. xv

Table 3-1. Port types for the TokenSpeed module ....................................................3-6

Table 3-2. TokenSpeed module LEDs ......................................................................3-8

Table 3-3. Factory default conﬁguration settings ......................................................3-9

Table B-1. Port types for the TokenSpeed module ................................................... B-2

Table B-2. Cable distances ...................................................................................... B-3

Table B-3. Male Mini DIN 8 to male DB-25 cable ................................................... B-13

Table B-4. Female DB-25 to female DB-9 adapter ................................................. B-14

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Preface

Congratulations on your purchase of the Bay Networks® 8-port TokenSpeed™ or TokenSpeed/MCP switch module. The TokenSpeed and TokenSpeed/MCP switch modules provide token ring connectivity for the Centillion 100™ and Centillion 50™ switches. In addition, a TokenSpeed/MCP module can provide the master control processing functions for a Centillion™ switch.

In this guide, the TokenSpeed module and TokenSpeed/MCP module are referred to collectively as the TokenSpeed module. Each model is referred to speciﬁcally when features and functions are unique to that particular model.

Purpose

Audience

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This guide provides information about installing and using the TokenSpeed module. Conﬁguration of the TokenSpeed module is covered in

SpeedView 2.1 for Windows

Related Publications” on page xv.

“

This guide is intended for local area network administrators with the following background:

• Familiarity with token ring network administration

• SpeedView for Windows: working knowledge of Windows

• SpeedView for UNIX: working knowledge of UNIX

. For more information about these guides, see

Using

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Using the 8-port TokenSpeed and TokenSpeed/MCP Switch Modules

Conventions

This section describes the conventions used in this guide.

Special Message Formats

This guide uses the following formats to highlight special messages:

Note:

This format is used to highlight information of importance or special

interest.

Caution:

prevent equipment failure or loss of data.

Warning:

injury or equipment damage.

This format is used to highlight information that will help you

This format is used to highlight material involving possibility of

Two-tiered Procedure Format

The procedural steps in this guide are presented in a two-tiered format. The ﬁrst tier describes the step brieﬂy but precisely. An experienced user may need to read only the ﬁrst tier to complete the task. The second tier describes the step in more detail and may include results of performing the step.

xiv

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Related Publications

For more information about using the TokenSpeed module, refer to the publications listed in T

Table 1. Related publications

Title Description

Preface

able 1.

Installation and Reference for the Centillion Chassis

(Bay Networks part number 893-894-A)

Using SpeedView 2.1 for Windows

(Bay Networks part number 893-891-B)

Reference Guide for the Centillion 100 and Model 5000BH Switches

(Bay Networks part number 893-01006-A)

Reference Guide for the Centillion Command Line Interface

(Bay Networks part number 893-00985-A)

Using the Centillion 50 Token Ring Workgroup Switch

number 893-01015-A)

(Bay Networks part

Ordering Bay Networks Publications

To purchase additional copies of this document or other Bay Networks publications, order by part number from Bay Networks Press™ at the following numbers:

Describes installation procedures for the Centillion chassis.

Describes the software conﬁguration features for the Centillion switch and modules from a Windows platform.

Provides reference information about switching terminology and concepts; describes conﬁguration examples using Centillion 100 and Model 5000BH switches.

Describes setup and conﬁguration procedures for Centillion switches using the command line interface.

Describes typical network uses and installation procedures for the Centillion 50T switch.

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• Phone—U.S./Canada: 1-888-422-9773

• Phone—International: 1-510-490-4752

• Fax—U.S./Canada and International: 1-510-498-2609

Using the 8-port TokenSpeed and TokenSpeed/MCP Switch Modules

Bay Networks Customer Support

You can purchase a support contract from your Bay Networks distributor or authorized reseller, or directly from Bay Networks Services. For information about, or to purchase a Bay Networks service contract, either call your local Bay Networks ﬁeld sales ofﬁce or one of the following numbers:

Region Telephone number Fax number

United States and Canada

Europe 33-4-92-96-69-66 33-4-92-96-69-96 Asia/Paciﬁc 61-2-9927-8888 61-2-9927-8899 Latin America 561-988-7661 561-988-7550

1-800-2LANWAN; then enter Express Routing Code (ERC) 290, when prompted, to purchase or renew a service contract

1-508-916-8880 (direct)

How to Get Help

If you purchased a service contract for your Bay Networks product from a distributor or authorized reseller, contact the technical support staff for that distributor or reseller for assistance.

1-508-670-8766

xvi

If you purchased a Bay Networks service program, call one of the following Bay Networks Technical Solutions Centers:

Technical Solutions Center Telephone number Fax number

Billerica, MA 1-800-2LANWAN 508-670-8765 Santa Clara, CA 1-800-2LANWAN 408-495-1188 Valbonne, France 33-4-92-96-69-68 33-4-92-96-69-98 Sydney, Australia 61-2-9927-8800 61-2-9927-8811 Tokyo, Japan 81-3-5402-0180 81-3-5402-0173

Use Express Routing Code 145 to reach a support representative for token ring switching products.

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For More Information

For information about Bay Networks and its products, visit the Bay Networks World Wide Web (WWW) site at http://www.baynetworks.com. To learn more about Bay Networks Customer Service, select Customer Service on the opening Web page.

Preface

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Using the 8-port TokenSpeed and TokenSpeed/MCP Switch Modules

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Chapter 1

Overview of the TokenSpeed Module

This chapter introduces the 8-port TokenSpeed module and covers the following topics:

• A summary of module functions, capabilities, and features (starting on this page)

• A physical description of the module printed circuit board and the board in relation to the Centillion switch chassis (see page

1-4)

About the TokenSpeed Module

The 8-port TokenSpeed module inserts into one slot of a Centillion 100 or Centillion 50 switch chassis to provide token ring ports and, optionally, an integrated master control processor (MCP). This module replaces earlier module versions that provided only four ports. The TokenSpeed module comes in the following conﬁgurations:

• A TokenSpeed module with eight switched token ring ports with RJ-45 connectors for unshielded twisted pair (UTP) or shielded twisted pair (STP) cable

• A TokenSpeed/MCP module with eight switched token ring ports with RJ-45 connectors for UTP/STP cable and a serial port implemented on a Mini DIN 8 connector

These modules offer identical functional features for token ring connectivity. In addition to providing token ring connectivity, a Tok enSpeed/MCP module also manages the Centillion switch. The MCP port can be used to connect a network management station. One (and only one) MCP module is required for each Centillion chassis; however, an ATMSpeed/MCP or EtherSpeed/MCP module can also be used to meet this requirement.

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Using the 8-port TokenSpeed and TokenSpeed/MCP Switch Modules

Features

This section provides a summary of the features of the TokenSpeed module, including the following topics:

• TokenSpeed module ports and connectivity

• Filtering

• Caching and proxy

• Fault tolerance

• Network management

TokenSpeed Module Ports and Connectivity

TokenSpeed module ports have the following features:

• Operation at 4 or 16 megabits per second (Mb/s), with automatic sensing of the data rate of an inserting station

• Onboard connectors

1-2

— RJ-45 connector for UTP/STP connection to each token ring port — One serial port with a Mini DIN 8 connector on the TokenSpeed/MCP

module

• Transparent, source route, and source route transparent bridging with IEEE 802.1d or IBM Spanning Tree support

• Virtual ring partitioning for any combination of ports in a single switch, each virtual ring appearing as a single ring in a source-routing network

• Per-port features — LEDs to indicate operational status of each port — Automatic adaptation to speed of inserting station: 4 or 16 Mb/s — Automatic port deactivation for errors or administrative control — Wire-speed port-to-port switching for local trafﬁc without using any A TM

backplane bandwidth

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Filtering

The TokenSpeed module has the following ﬁltering features:

• Support for NetBIOS name ﬁlters, datagram broadcast ﬁlters, and a name query interval

• Filtering for any pattern up to 12 bytes wide in the ﬁrst 255 bytes of a frame

• Per-port ﬁlter conﬁguration

Caching and Proxy

The TokenSpeed module has the following caching and proxy features:

• Caching for NetBIOS names to reduce NetBIOS name broadcast packets (Each switch can cache up to 500 NetBIOS names.)

• Caching for Route Information Field (RIF) to speed up the explorer process and reduce broadcasts (Each switch can cache up to 500 unique RIFs.)

• Cache capacity of up to 128 RIFs for source route explorer proxy and 5120 media access control (MAC) addresses

Overview of the TokenSpeed Module

• Cache capacity of up to 10,240 MAC addresses in the MCP station table

Fault Tolerance

The TokenSpeed module has the following fault-tolerance features:

• Ability to install, remove, and replace a module in an operational chassis (hot-swap)

• Flash memory download with storage for two conﬁgurations on the TokenSpeed/MCP module

• Software update and management access over the network or a serial connection to the TokenSpeed/MCP module

Network Management

The TokenSpeed/MCP module provides the following network management features for the TokenSpeed module and other modules in a Centillion switch:

• Simple Network Management Protocol (SNMP) agent with Centillion Management Information Base (MIB) extensions

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