Avaya Configuring ATM Services User manual

Part No. 117374-A Rev. A

September 1997

BayRS Version 12.00

Site Manager Software Version 6.00

Conﬁguring ATM

Services

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117374-A Rev. A

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Contents

About This Guide

Before You Begin ...........................................................................................................xviii

Conventions ...................................................................................................................xviii

Acronyms .........................................................................................................................xix

Ordering Bay Networks Publications ..............................................................................xxii

Bay Networks Customer Service ....................................................................................xxii

How to Get Help ............................................................................................................xxiii

Chapter 1

Starting ATM

Before You Begin ............................................................................................................1-1

Adding ATM to the Router ..............................................................................................1-2

Creating an ATM Circuit ...........................................................................................1-2

Deﬁning a Service Record .......................................................................................1-3

Adding a Service Record for PVCs ...................................................................1-3

Adding a Service Record for Classical IP ..........................................................1-4

Adding a Service Record for LANE ...................................................................1-5

Enabling Protocols on an ATM Service Record .......................................................1-6

Supported Protocols ..........................................................................................1-6

Things to Remember .........................................................................................1-7

Selecting Protocols ............................................................................................1-8

Adding PVCs ............................................................................................................1-9

Where to Go Next .........................................................................................................1-10

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Chapter 2

Understanding ATM Concepts

ATM General Information ................................................................................................2-1

ATM Cells .................................................................................................................2-1

Cell Headers ......................................................................................................2-2

The Cell Information Field .................................................................................2-3

Data Transmission ....................................................................................................2-3

Permanent and Switched Virtual Connections .........................................................2-5

Physical Layer ................................................................................................................2-5

ATM Layer .......................................................................................................................2-6

ATM Adaptation Layer (AAL5) ........................................................................................2-7

Service Records and Virtual Circuits ..............................................................................2-8

Data Encapsulation ........................................................................................................2-9

Encapsulation Methods ............................................................................................2-9

LANE Encapsulation ..........................................................................................2-9

LLC/SNAP Encapsulation ................................................................................2-10

NULL Encapsulation ........................................................................................2-10

NLPID Encapsulation ......................................................................................2-10

Selecting a Data Encapsulation Method ................................................................2-11

Selecting LLC/SNAP Encapsulation ................................................................2-11

Selecting NULL Encapsulation (VC-Based Multiplexing) ................................2-11

Encapsulation Rules for PVCs ...............................................................................2-12

PVC Access Methods ...................................................................................................2-13

Multiple PVCs .........................................................................................................2-13

One PVC ................................................................................................................2-15

Hybrid Access ........................................................................................................2-16

Using Hybrid PVCs for Transparent Bridging .........................................................2-17

SVC Access Methods ...................................................................................................2-18

ATM Trafﬁc Parameters .................................................................................................2-18

Variable Bit Rate Versus Available Bit Rate ..................................................................2-19

Variable Bit Rate ....................................................................................................2-19

Available Bit Rate ...................................................................................................2-20

Rules for Editing Protocols ...........................................................................................2-20

ARP and Inverse ARP Support ....................................................................................2-21

ATM Error Checking .....................................................................................................2-21

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Simulated Multicast Packet Support .............................................................................2-21

Converting Mb/s to Cells/s ............................................................................................2-22

For More Information ....................................................................................................2-23

Where to Go Next .........................................................................................................2-24

Chapter 3

Understanding Classical IP over ATM Concepts

ATM Address Resolution ................................................................................................3-3

Conﬁguring an ATM Service Record for ATMARP ..........................................................3-4

Conﬁguring an ATM Address for an Adjacent Host ........................................................3-5

Editing an ATMARP IP Interface .....................................................................................3-5

Where to Go Next ...........................................................................................................3-6

Chapter 4

Understanding ATM LAN Emulation Concepts

LAN Emulation Basics ....................................................................................................4-1

LAN Emulation Connectivity ...........................................................................................4-1

LAN Emulation Components ..........................................................................................4-2

LAN Emulation Clients .............................................................................................4-2

LAN Emulation Conﬁguration Server .......................................................................4-2

LAN Emulation Server ..............................................................................................4-3

Broadcast and Unknown Server ..............................................................................4-3

Understanding LAN Emulation States ............................................................................4-4

Initial State ...............................................................................................................4-5

LECS Connect State ................................................................................................4-5

Conﬁgure State ........................................................................................................4-5

Join State .................................................................................................................4-5

Initial Registration State ...........................................................................................4-6

BUS Connect State ..................................................................................................4-6

Operational State .....................................................................................................4-6

Where to Go Next ...........................................................................................................4-7

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Chapter 5

Customizing an ATM Line

Modifying ATM FRE-2 Line Details .................................................................................5-1

Enabling and Disabling the ATM Line ......................................................................5-1

Enabling and Disabling Data Path Notify .................................................................5-1

Specifying the Data Path Notify Timeout Value ........................................................5-2

Enabling or Disabling SVC Inactivity Timeout ..........................................................5-2

Specifying an SVC Inactivity Timeout ......................................................................5-2

Modifying ATM FRE-2 Physical Attributes ......................................................................5-3

Assigning the Framing Mode ....................................................................................5-3

Enabling or Disabling Cell Payload Scrambling .......................................................5-4

Enabling or Disabling Loopback ...............................................................................5-4

Deﬁning ATM Cell Insertion ......................................................................................5-5

Modifying ATM ARE and Model 5780 ATM Router Line Details .....................................5-5

Enabling or Disabling the Line Driver .......................................................................5-5

Deﬁning the Interface MTU ......................................................................................5-5

Enabling and Disabling the Data Path Function .......................................................5-6

Specifying a Data Path Notify Timeout .....................................................................5-6

Enabling or Disabling SVC Inactivity Timeout ..........................................................5-6

Specifying an SVC Inactivity Timeout (In Seconds) .................................................5-7

Assigning the Framing Mode ....................................................................................5-7

Deﬁning the Clocking Signal Source ........................................................................5-8

Specifying DS3 Line Build Out .................................................................................5-8

Turning On and Off DS3 Scrambling ........................................................................5-8

Enabling or Disabling Per-VC Clipping .....................................................................5-9

Where to Go Next .........................................................................................................5-10

Chapter 6

Customizing ATM Interfaces and

Service Records

Setting the Interface Administrative State .......................................................................6-1

Enabling or Disabling Signaling on an Interface .............................................................6-1

Autogenerating ATM Addresses .....................................................................................6-2

Enabling or Disabling the Hardware MAC Address Feature ....................................6-2

Entering a MAC Address Override Value .................................................................6-2

Enabling or Disabling User Part Autogeneration ......................................................6-3

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Assigning ATM Addresses ..............................................................................................6-3

Entering an ATM Address Network Preﬁx ................................................................6-4

Entering an ATM Address User Part ........................................................................6-4

Enabling or Disabling a Service Record .........................................................................6-4

Deﬁning a Service Record ..............................................................................................6-5

Assigning the Data Encapsulation Type ...................................................................6-5

Specifying a Virtual Connection Type .......................................................................6-6

Entering an Emulated LAN Name ..................................................................................6-6

Assigning an Emulated LAN Type ..................................................................................6-6

Deﬁning the MTU ............................................................................................................6-7

Where to Go Next ...........................................................................................................6-8

Chapter 7

Customizing PVCs

Setting a VPI/VCI Pair .....................................................................................................7-1

Setting a VPI Number ..............................................................................................7-1

Setting a VCI Number ..............................................................................................7-2

Designating a VC as Hybrid/Bridged ..............................................................................7-2

Assigning the Administrative State .................................................................................7-3

Modifying ATM Trafﬁc Parameters ..................................................................................7-3

Setting the PCR .......................................................................................................7-3

Setting the SCR .......................................................................................................7-5

Setting the MBS .......................................................................................................7-7

Modifying the Maximum AAL CPCS SDU Size ..............................................................7-8

Setting the Transmit SDU Size .................................................................................7-8

Setting the Receive SDU Size .................................................................................7-8

Assigning a Data Encapsulation Type ............................................................................7-8

Where to Go Next ...........................................................................................................7-9

Chapter 8

Customizing LAN Emulation Clients

Enabling or Disabling LANE ...........................................................................................8-1

Deﬁning a LEC ...............................................................................................................8-1

Specifying an Owner ................................................................................................8-2

Entering an ELAN Name ..........................................................................................8-2

Entering a LES ATM Address ..................................................................................8-2

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Selecting a Conﬁguration Mode .....................................................................................8-3

Assigning an Emulated LAN Type ..................................................................................8-3

Setting the Maximum Data Frame Size ..........................................................................8-4

Controlling Unknown Frame Distribution ........................................................................8-4

Setting a Maximum Unknown Frame Count .............................................................8-4

Specifying a Maximum Unknown Frame Time .........................................................8-5

Modifying LANE Timers and Retry Counters ..................................................................8-5

Setting the Control Timeout .....................................................................................8-5

Enabling or Disabling the VCC Timeout Period ........................................................8-6

Setting the Maximum Retry Count ...........................................................................8-6

Setting the Aging Time .............................................................................................8-6

Setting the Forward Delay Time ...............................................................................8-7

Deﬁning the Expected LE_ARP Response Time .....................................................8-7

Setting the Path Switching Delay .............................................................................8-7

Specifying the Emulated LAN Segment ID ..............................................................8-8

Modifying Flush Protocol Variables .................................................................................8-8

Enabling or Disabling the Flush Protocol .................................................................8-9

Setting the Flush Timeout ........................................................................................8-9

Entering a LECS ATM Address ......................................................................................8-9

Where to Go Next .........................................................................................................8-10

Chapter 9

Customizing Signaling

Enabling or Disabling Signaling ......................................................................................9-2

Assigning a Protocol Standard .......................................................................................9-2

Specifying the Maximum Number of SVC Applications ..................................................9-2

Setting Connection Thresholds .......................................................................................9-3

Deﬁning Maximum Point-to-Point Connections ........................................................9-3

Deﬁning Maximum Point-to-Multipoint Connections .................................................9-3

Deﬁning Maximum Parties in Multipoint Connections ..............................................9-3

Setting the Minimum Memory Threshold ........................................................................9-3

Setting Signaling Timers .................................................................................................9-4

Deﬁning Retransmissions ...............................................................................................9-9

Setting the Number of Allowable Restart Messages ................................................9-9

Setting the Number of Allowable Status Enquiries ...................................................9-9

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Pacing Calls ....................................................................................................................9-9

Where to Go Next .........................................................................................................9-10

Chapter 10

Customizing ILMI

Enabling or Disabling ILMI ............................................................................................10-1

Modifying ILMI Timers and Retry Counters ..................................................................10-1

Setting the ILMI Get Timer .....................................................................................10-2

Setting the ILMI Get Retry Count ...........................................................................10-2

Setting the ILMI Get Next Timer .............................................................................10-2

Setting the ILMI Get Next Retry Count ...................................................................10-2

Setting the ILMI Set Timer .....................................................................................10-3

Setting the ILMI Set Retry Count ...........................................................................10-3

Where to Go Next .........................................................................................................10-4

Chapter 11

Customizing Signaling and ILMI Control VCs

Redeﬁning the Signaling Control VC ............................................................................11-1

Changing the Signaling VPI Number .....................................................................11-1

Changing the Signaling VCI Number .....................................................................11-1

Redeﬁning the ILMI Control VC ....................................................................................11-2

Changing the ILMI VPI Number .............................................................................11-2

Changing the ILMI VCI Number .............................................................................11-2

Modifying Control VC Trafﬁc Parameters ......................................................................11-2

Setting the PCR .....................................................................................................11-2

Setting the SCR .....................................................................................................11-4

Setting the MBS .....................................................................................................11-6

Modifying the Maximum AAL CPCS SDU Size ............................................................11-7

Setting the Transmit SDU Size ...............................................................................11-7

Setting the Receive SDU Size ...............................................................................11-7

Where to Go Next .........................................................................................................11-8

Chapter 12

Customizing SAAL

Enabling or Disabling SAAL ..........................................................................................12-2

Deﬁning the Link Connection Arbitration ......................................................................12-2

Modifying SAAL Timers ................................................................................................12-2

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Deﬁning PDU Values ....................................................................................................12-4

Setting the SSCOP Maximum Connection Control Value ......................................12-4

Setting the SSCOP Maximum Poll Data Value .......................................................12-4

Setting the SSCOP Maximum STAT PDU Value ....................................................12-5

Where to Go Next .........................................................................................................12-5

Appendix A

Site Manager Parameters

Accessing ATM Parameters ........................................................................................... A-1

Using the Window Path ........................................................................................... A-1

Using the Menu Path ............................................................................................... A-3

ATM Line Parameter Descriptions ................................................................................. A-5

ATM FRE-2 Line Details .......................................................................................... A-6

ATM FRE-2 Physical Attributes ............................................................................... A-8

ATM ARE Line Details ........................................................................................... A-10

ATM Interface Parameter Descriptions ........................................................................ A-16

ATM Service Record Parameter Descriptions ............................................................. A-19

ATM Virtual Channel Link Parameter Descriptions ............................................... A-28

LAN Emulation Parameter Descriptions ................................................................ A-35

ATM Signaling Parameter Descriptions ....................................................................... A-45

ATM ILMI Signaling Parameter Descriptions ............................................................... A-57

Signaling and ILMI Control VC Parameter Descriptions .............................................. A-61

ATM Signaling AAL Parameter Descriptions ............................................................... A-66

ATMARP Conﬁguration Parameter Descriptions ......................................................... A-70

Adjacent Host Parameter Descriptions ........................................................................ A-71

IP Interface Parameter Descriptions ............................................................................ A-74

Appendix B

Site Manager Default Settings for ATM

ATM FRE-2 Line Parameters ......................................................................................... B-4

ATM ARE Line Parameters ............................................................................................ B-4

Appendix C

ATM Sample Log

Index

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Figures

Figure 2-1. ATM Cell ...................................................................................................2-1

Figure 2-2. ATM Cell Header ......................................................................................2-2

Figure 2-3. ATM Transmission Components ...............................................................2-4

Figure 2-4. B-ISDN ATM Protocol Reference Model ..................................................2-6

Figure 2-5. ATM Adaptation Layer 5 ...........................................................................2-8

Figure 2-6. Multiple PVCs per Service Record ........................................................2-14

Figure 2-7. One PVC per Service Record ................................................................2-15

Figure 2-8. Hybrid PVCs ..........................................................................................2-16

Figure 2-9. Example of a Bridged Network ..............................................................2-17

Figure 3-1. IP Local Area Network .............................................................................3-2

Figure 3-2. IP Logical IP Subnet ................................................................................3-3

Figure 4-1. LAN Emulation States ..............................................................................4-4

Figure 6-1. ATM Address Components ......................................................................6-3

Figure 9-1. SVC/PVC Signaling Protocol Stack .........................................................9-1

Figure 12-1. SVC/PVC Signaling Protocol Stack .......................................................12-1

Figure A-1. Line Attributes Window Sequence .......................................................... A-5

Figure A-2. Interface Attributes Window Sequence ................................................. A-16

Figure A-3. Service Attributes Window Sequence (PVCs) ...................................... A-20

Figure A-4. Service Attributes Window Sequence (SVCs with LANE) ....................A-21

Figure A-5. ATM Signaling Parameters Window Sequence ..................................... A-45

Figure A-6. ATM ILMI Signaling Parameters Window Sequence ............................. A-57

Figure A-7. ATM Signaling AAL Records List Window Sequence ........................... A-66

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Tables

Table 1-1. Valid Data Encapsulation Types for PVCs and SVCs ..............................1-3

Table 1-2. Protocols Supported for Standard PVCs and SVCs ................................1-6

Table 2-1. Maximum Bandwidth ................................................................................2-6

Table 2-2. Assigning Data Encapsulation to Individual PVCs .................................2-12

Table 2-3. Locating and Using Protocol Menus ......................................................2-20

Table 5-1. Determining an Appropriate Framing Mode .............................................5-7

Table 6-1. Settings for Deﬁning a Service Record ....................................................6-5

Table 7-1. Valid PCR Ranges ...................................................................................7-4

Table 7-2. Valid SCR Ranges ...................................................................................7-6

Table 9-1. Signaling Timer Descriptions ...................................................................9-4

Table 11-1. Valid PCR Ranges .................................................................................11-3

Table 11-2. Valid SCR Ranges .................................................................................11-5

Table 12-1. Signaling Timer Descriptions .................................................................12-2

Table A-1. Finding Attribute Categories ................................................................... A-3

Table A-2. Finding Attribute Categories ................................................................... A-4

Table B-1. Initial ATM Signaling Conﬁg Window ....................................................... B-1

Table B-2. ATM Service Records List Window ......................................................... B-1

Table B-3. ATM Service Record Parameters Window .............................................. B-2

Table B-4. ATM Virtual Channel Link Window .......................................................... B-2

Table B-5. ATM Virtual Channel Link Parameters Window ....................................... B-2

Table B-6. LAN Emulation Parameters Window ....................................................... B-3

Table B-7. ATM Interface Attributes Window ............................................................ B-3

Table B-8. ATM FRE-2 Line Parameters .................................................................. B-4

Table B-9. ATM FRE-2 Physical Attribute Parameters ............................................. B-4

Table B-10. ATM ARE Line Parameters ..................................................................... B-4

Table B-11. ATM Signaling Parameters Window ........................................................ B-5

Table B-12. ATM Control VC for Signaling Window .................................................... B-6

Table B-13. ATM Signaling AAL Records List Window ............................................... B-6

Table B-14. ATM ILMI Signaling Parameters Window ................................................ B-7

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Table B-15. ATM Control VC for ILMI Window ............................................................ B-7

Table B-16. ATM ARP Conﬁguration Window ............................................................ B-7

117374-A Rev. A

xvii

About This Guide

This guide describes asynchronous transfer mode (ATM) and what you do to start

and customize a Bay Networks

®

ATM router.

Subject Go to

Starting ATM on your router Chapter

1

General ATM information Chapter 2

General classical IP over ATM information Chapter 3

General LAN emulation information Chapter 4

Customizing an ATM line Chapter 5

Customizing an ATM interface Chapter 6

Customizing an ATM service record Chapter 6

Customizing PVCs Chapter 7

Customizing a LAN emulation client Chapter 8

Customizing signaling Chapter 9

Customizing ILMI Chapter 10

Customizing signaling and ILMI control VCs Chapter 11

Customizing SAAL Chapter 12

Accessing Site Manager parameters Appendix A

Getting a complete list of Site Manager parameters Appendix A

Getting a complete list of Site Manager defaults Appendix B

Viewing a sample ATM log ﬁle Appendix C

Configuring ATM Services

xviii

117374-A Rev. A

Before You Begin

Before using this guide, you must complete the following procedures. For a new

router:

• Install the router according to its installation manual.

• Connect the router to the network and create a pilot conﬁguration ﬁle. Refer

to

Quick-Starting Routers

,

Conﬁguring BayStack Remote Access

, or

Connecting ASN Routers to a Network

.

Make sure that you are running the latest version of Bay Networks Site Manager

and router software. For instructions, refer to

Upgrading Routers from Version

7–11.xx to Version 12.00

.

Conventions

angle brackets (< >) Indicate that you choose the text to enter based on the

description inside the brackets. Do not type the

brackets when entering the command.

Example: if command syntax is

ping

<ip_address>

,

you enter

ping 192.32.10.12

bold text

Indicates text that you need to enter, command names,

and buttons in menu paths.

Example: Enter

wfsm &

Example: Use the

dinfo

command.

Example: ATM DXI > Interfaces >

PVCs

identiﬁes the

PVCs button in the window that appears when you

select the Interfaces option from the ATM DXI menu.

brackets ([ ]) Indicate optional elements. You can choose none, one,

or all of the options.

ellipsis points Horizontal (. . .) and vertical ellipsis points indicate

omitted information.

italic text

Indicates variable values in command syntax

descriptions, new terms, ﬁle and directory names, and

book titles.

quotation marks (“ ”) Indicate the title of a chapter or section within a book.

.

()

About This Guide

117374-A Rev. A

xix

screen text

Indicates data that appears on the screen.

Example:

Set Bay Networks Trap Monitor Filters

separator ( > ) Separates menu and option names in instructions and

internal pin-to-pin wire connections.

Example: Protocols > AppleTalk identiﬁes the

AppleTalk option in the Protocols menu.

Example: Pin 7 > 19 > 20

vertical line (

|

) Indicates that you enter only one of the parts of the

command. The vertical line separates choices. Do not

type the vertical line when entering the command.

Example: If the command syntax is

show at routes

|

nets

,

you enter either

show at routes

or

show at nets

, but not both.

Acronyms

AAL ATM adaptation layer

ABR available bit rate

AFI authority and format identiﬁer

ALC adaptation layer controller

ARE ATM Routing Engine

ARP Address Resolution Protocol

ATM asynchronous transfer mode

BFE Blacker front-end encryption

B-ISDN Broadband Integrated Services Digital Network

BUS broadcast and unknown server

CMS Connection Management System

CPCS common part convergence sublayer

CS convergence sublayer

CSU channel service unit

DCE data communications equipment

DDN Defense Data Network

DSU data service unit

DTE data terminal equipment

Configuring ATM Services

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117374-A Rev. A

DXI Data Exchange Interface

ELAN emulated LAN

ER error recovery

FRE Fast Routing Engine

ILI Intelligent Link Interface

ILMI Interim Local Management Interface

IP Internet Protocol

IPX Internet Packet Exchange Protocol

ITU-T International Telecommunications Union -

Telecommunication Standardization Sector

LANE LAN emulation

LE LAN emulation

LEC LAN emulation client

LECS LAN emulation conﬁguration server

LES LAN emulation server

LIS logical IP subnet

LLC Logical Link Control Protocol

LUNI LAN emulation UNI

MAC media access control

MBS maximum burst size

MCS multicast server

MIB management information base

MCR minimum cell rate

MTU maximum transmission unit

NML Native Mode LAN Protocol

NMS network management station

NNI network-to-network interface

OAM&P operations, administration, maintenance and provisioning

OSI Open Systems Interconnection

OSPF Open Shortest Path First Protocol

PCR peak cell rate

PD poll data

PDN Public Data Network

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