Avaya Configuring ATM Half-Bridge Services User Manual

Part No. 300017-A Rev. 00February 1998BayRS Version 12.10Site Manager Software Version 6.10 Configuring ATMHalf-Bridge Services

300017-A Rev. 00xiTablesTable 1-1. Sample AHB Bridge Table ...1-9

300017-A Rev. 00xiii About This GuideIf you are responsible for configuring ATM Half-Bridge services, you need to read this guide.Before You BeginBefo

Configuring ATM Half-Bridge Servicesxiv300017-A Rev. 00Conventionsbold textIndicates text that you need to enter, command names, and buttons in menu p

About This Guide300017-A Rev. 00xv AcronymsAAL ATM adaptation layerADSL asymmetric digital subscriber lineAHB ATM Half BridgeARE ATM Routing EngineARP

Configuring ATM Half-Bridge Servicesxvi300017-A Rev. 00MTU Maximum Transmission UnitOSI Open Systems InterconnectionPDU protocol data unitPVC permanen

About This Guide300017-A Rev. 00xvii Bay Networks Customer ServiceYou can purchase a support contract from your Bay Networks distributor or authorized

Configuring ATM Half-Bridge Servicesxviii300017-A Rev. 00Bay Networks Educational ServicesThrough Bay Networks Educational Services, you can attend cl

300017-A Rev. 001-1 Chapter 1ATM Half-Bridge OverviewThis chapter provides an overview of basic ATM Half-Bridge concepts and the specific ways Bay Net

ii300017-A Rev. 004401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821Copyright © 1998 Bay Networks, Inc.All rights re

Configuring ATM Half-Bridge Services1-2300017-A Rev. 00Bay Networks designed AHB to meet the requirements of public network providers who want to deve

ATM Half-Bridge Overview300017-A Rev. 001-3 Figure 1-1. DSL Network with an AHB RouterThe following steps explain how IP packets travel from the CPE h

Configuring ATM Half-Bridge Services1-4300017-A Rev. 004.The ATM network, located at the central office, switches the ATM cells and forwards them over

ATM Half-Bridge Overview300017-A Rev. 001-5 Forwarding Outbound Packets to CPE Hosts IP packets received from ISP’s or corporate networks that are des

Configuring ATM Half-Bridge Services1-6300017-A Rev. 00Figure 1-2. How CPE Hosts Identify a DCHP ServerFigure 1-3 shows how the CPE hosts request and

ATM Half-Bridge Overview300017-A Rev. 001-7 Figure 1-3. How CPE Hosts Request and Receive IP Addresses from the DHCP ServerDynamically Learning New Br

Configuring ATM Half-Bridge Services1-8300017-A Rev. 00Unsecure Learning MethodAHB learns new bridge entries from any IP and ARP packets it receives o

ATM Half-Bridge Overview300017-A Rev. 001-9 Maintaining the AHB Bridge TableAHB maintains a bridge table on each slot. The table contains a list of ho

Configuring ATM Half-Bridge Services1-10300017-A Rev. 00Removing Bridge Table Entries AHB removes an existing table entry whenever it adds a new entry

ATM Half-Bridge Overview300017-A Rev. 001-11 You can use the “forward to next hop” feature to improve reliability. Consider an example where an ISP ho

300017-A Rev. 00iiiBay Networks, Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using the acco

Configuring ATM Half-Bridge Services1-12300017-A Rev. 00Using Inbound Packet Filtering AHB uses inbound packet filtering to forward bridge packets it

300017-A Rev. 002-1 Chapter 2Starting AHB ServicesThis chapter provides instructions for starting AHB services with the default configuration values s

Configuring ATM Half-Bridge Services2-2300017-A Rev. 00Preparing a Configuration FileTo create a configuration file for AHB, complete the following ta

Starting AHB Services300017-A Rev. 002-3 Configuring an IP Interface on the RouterYou must configure an IP interface on a non-ATM/AHB interface. This

Configuring ATM Half-Bridge Services2-4300017-A Rev. 00Configuring Circuitless IP on the RouterTo operate AHB, you must configure unnumbered IP interf

Starting AHB Services300017-A Rev. 002-5 Go to the next section to configure AHB services on the router.Configuring AHB ServicesConfiguring AHB servic

Configuring ATM Half-Bridge Services2-6300017-A Rev. 00Creating an ATM InterfaceTo create an ATM interface, complete the following tasks:Go to the nex

Starting AHB Services300017-A Rev. 002-7 To add an LLC/SNAP service record, complete the following tasks:Go to the next section, “Adding AHB to the LL

Configuring ATM Half-Bridge Services2-8300017-A Rev. 00To add AHB to an LLC/SNAP service record, complete the following tasks:Next, add PVCs to the LL

Starting AHB Services300017-A Rev. 002-9 Adding PVCs to the LLC/SNAP PVC Service RecordTo add PVCs to the LLC/SNAP service record on the ATM interface

iv300017-A Rev. 00its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files,

Configuring ATM Half-Bridge Services2-10300017-A Rev. 00Next, you must configure BootP to define a forwarding path between a router and a BootP/DHCP s

Starting AHB Services300017-A Rev. 002-11 Site Manager requires that you specify input and output addresses to configure the BootP relay agent on the

Configuring ATM Half-Bridge Services2-12300017-A Rev. 00Configuring BootP Preferred ServersYou can configure a BootP preferred server by specifying th

Starting AHB Services300017-A Rev. 002-13 Specifying the Target Server IP AddressAfter you specify the relay agent IP address, you must specify the IP

300017-A Rev. 003-1 Chapter 3Customizing AHB ServicesWhen you first configure AHB services, default values are in effect for all parameters (see param

Configuring ATM Half-Bridge Services3-2300017-A Rev. 00To enable and disable AHB forwarding on the router, complete the following tasks:Setting the Au

Customizing AHB Services300017-A Rev. 003-3 To set the auto learn method by which AHB learns bridge entries, complete the following tasks:Configuring

Configuring ATM Half-Bridge Services3-4300017-A Rev. 00A sample init file (ahb.dat) is shown next:[SLOT 3]1.3.1.32 255.255.255.0 4 409600 0 0 aaaa0300

Customizing AHB Services300017-A Rev. 003-5 To specify the name of the local init file you want to use, complete the following tasks:Specifying an Alt

300017-A Rev. 00vContents About This GuideBefore You Begin ...

Configuring ATM Half-Bridge Services3-6300017-A Rev. 00To specify the name of the alternate init file you want to use, complete the following tasks:Sp

Customizing AHB Services300017-A Rev. 003-7 Enabling and Disabling Inbound Packet FilteringBy default, inbound packet filtering is disabled on the AHB

Configuring ATM Half-Bridge Services3-8300017-A Rev. 00Modifying AHB CircuitsYou can modify AHB circuits by changing the AHB circuit parameters locate

Customizing AHB Services300017-A Rev. 003-9 Specifying the Subnet Mask for the Learned HostIf you set the learning method on the ATM interface to Unse

Configuring ATM Half-Bridge Services3-10300017-A Rev. 00Enabling and Disabling Proxy ARP on a CircuitBy default, proxy ARP is enabled on the AHB circu

Customizing AHB Services300017-A Rev. 003-11 For detailed information about creating traffic filters for source-based routing, refer to Configuring Tr

300017-A Rev. 00A-1 Appendix AAHB, BootP/DHCP, IP, and ATMParameter DescriptionsThis appendix contains reference information about customizing AHB glo

Configuring ATM Half-Bridge ServicesA-2300017-A Rev. 00• Instructions for setting the parameter• Management information base (MIB) object IDThe Techni

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-3 The AHB global parameter descriptions follow.Parameter: EnablePath: Configurati

vi300017-A Rev. 00Chapter 2 Starting AHB ServicesNetwork Planning Considerations ...

Configuring ATM Half-Bridge ServicesA-4300017-A Rev. 00Parameter: Local Init FilePath: Configuration Manager > Protocols > IP > AHB > Glob

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-5 Parameter: Inbound Packet FilteringPath: Configuration Manager > Protocols &

Configuring ATM Half-Bridge ServicesA-6300017-A Rev. 00AHB Circuit ParametersUse the following guidelines to configure AHB Circuit parameters in the A

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-7 Parameter: Learned Host Subnet Mask Path: Configuration Manager > Protocols

Configuring ATM Half-Bridge ServicesA-8300017-A Rev. 00BootP Relay Agent Interface Table ParametersUse the following guidelines to configure DHCP para

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-9 Parameter: Enable/DisablePath: Configuration Manager > Protocols > IP >

Configuring ATM Half-Bridge ServicesA-10300017-A Rev. 00BootP Address ParametersUse the following guidelines to configure DHCP parameters in the BOOTP

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-11 To access the BOOTP Addresses window, complete the following tasks:The BootP a

Configuring ATM Half-Bridge ServicesA-12300017-A Rev. 00BootP Relay Agent Preferred Server Table ParametersUse the following guidelines to configure B

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-13 The BootP relay agent preferred server parameters descriptions follow:Paramete

300017-A Rev. 00viiAppendix A AHB, BootP/DHCP, IP, and ATM Parameter DescriptionsAHB Global Parameters ...

Configuring ATM Half-Bridge ServicesA-14300017-A Rev. 00BootP Preferred Server Configuration ParametersThe BOOTP Preferred Server Configuration window

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-15 IP Configuration ParametersParameter: Target Server IP AddressPath: Configurat

Configuring ATM Half-Bridge ServicesA-16300017-A Rev. 00Parameter: Transmit Bcast AddrPath: Select IP from the Select Protocols window and click on OK

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-17 ATM Interface Parameter DescriptionsInterface parameters define the state of t

Configuring ATM Half-Bridge ServicesA-18300017-A Rev. 00Parameter: Use Hardware MAC AddressPath: Configuration Manager > Protocols > ATM > In

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-19 ATM Service Record Parameter DescriptionsService record parameters define the

Configuring ATM Half-Bridge ServicesA-20300017-A Rev. 00Figure A-8. Service Attributes Window Sequence (PVCs)ATM service recordslist windowATM virtual

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-21 Parameter: Enable/DisablePath: Configuration Manager > Protocols > ATM &

Configuring ATM Half-Bridge ServicesA-22300017-A Rev. 00Parameter: ATM Addr User PartPath: Configuration Manager > Protocols > ATM > Service

AHB, BootP/DHCP, IP, and ATM Parameter Descriptions300017-A Rev. 00A-23 ATM Virtual Channel Link Parameter DescriptionsNote: ATM does not allow duplic

Configuring ATM Half-Bridge ServicesA-24300017-A Rev. 00Parameter: VCI NumberPath: Configuration Manager > Protocols > ATM > Service Records

300017-A Rev. 00B-1 Appendix BUnderstanding ATM ConceptsThis appendix provides an overview of basic ATM concepts and the specific ways Bay Networks im

Configuring ATM Half-Bridge ServicesB-2300017-A Rev. 00Figure B-1. ATM Cell48-byteinformation field5-byteheaderGeneric flow control (GFC)Virtual path

Understanding ATM Concepts300017-A Rev. 00B-3 The fields in each ATM cell header provide all the information necessary for networking. These fields in

Configuring ATM Half-Bridge ServicesB-4300017-A Rev. 00A virtual channel is a logical connection between two communicating ATM entities. Each virtual

Understanding ATM Concepts300017-A Rev. 00B-5 Permanent Virtual ConnectionsVirtual channels and virtual paths allow you to establish virtual channel l

Configuring ATM Half-Bridge ServicesB-6300017-A Rev. 00Assigning a Data Encapsulation Type for a PVCWith AHB, you must assign the Logical Link Control

Understanding ATM Concepts300017-A Rev. 00B-7 Multiple PVCsOf the two methods, having multiple PVCs per service record uses network addressing most ef

Configuring ATM Half-Bridge ServicesB-8300017-A Rev. 00Multiple PVCs per service record work best in either fully meshed environments or in nonmeshed

Understanding ATM Concepts300017-A Rev. 00B-9 Figure B-4. One PVC per Service RecordAssigning one PVC per service record allows you to dedicate a PVC

300017-A Rev. 00ixFiguresFigure 1-1. DSL Network with an AHB Router ...1-3Figure 1-2. How CPE

300017-A Rev. 00Index-1AaddingATM circuit, 2-6ATM to the router, 2-9PVCs, 2-9service recordsPVC, 2-7Administrative Stateparameter description, A-17ADS

Index-2300017-A Rev. 00DData Encapsulation Typeparameter descriptionservice record, A-21Debug Level parameter, 3-6, A-4DHCPdefining forwarding paths,

300017-A Rev. 00Index-3RRelay Agent IP Address parameter, A-14requirements, 3-1RFC 1483 encapsulation, 1-2Ssecure learning method, 1-8service attribut

UUnNumbered Assoc Address parameter, A-16IP configuration, 2-3, A-16unsecure learning method, 1-8Use Hardware MAC Addressparameter description, A-18VV