Avaya X.25 Instrukcja Użytkownika

Configuring X.25 Services Router Software Version 10.0Site Manager Software Version 4.0Part No.112926 Rev. AJanuary 1996

Index-2Defense Data Network (DDN), 1-5Blacker Front-End, 1-5enabling, 4-32enabling, 3-6, 4-6specifying as X.25 service type, 3-12, 4-26Eeditingglobal

Index-3network layer protocols, 1-5network service recordsadding, 3-10deleting, 4-35editing, 4-23 to 4-35network services, 1-5Blacker Front-End, 1-6De

Index-4Incoming SVC LCN Start, 3-8, 4-9Link Address Type, 3-5Max Packet Length, 2-2, 2-3, 4-14Max Throughput Class, 4-16Max Window Size, 2-2, 2-3, 4-1

Index-5Transmit Window parameter, default setting, 2-4transmitting data across X.25 network, 1-10Tx/Rx Throughput Class parameter, 4-15Type parameter,

xi About This Guide If you are responsible for configuring and managing Bay Networks™ routers, read this guide to learn how to customize Bay Networks

Configuring X.25 Servicesxii Before You Begin Before using this guide, you must complete the following procedures:• Create and save a configuration fil

About This Guidexiii The Bay Networks forum contains libraries of technical and product documents designed to help you manage and troubleshoot your B

Configuring X.25 Servicesxiv Bay Networks maintains a WWW Home Page that you can access athttp://www.baynetworks.com. One of the menu items on the Ho

About This Guidexv Ordering Bay Networks Publications To purchase additional copies of this document or other Bay Networks publications, order by par

Configuring X.25 Servicesxvi PLP Packet Level ProtocolPPP Point-to-Point ProtocolPSN packet-switching networkRFC Request for CommentsRIP Routing Info

1-1 Chapter 1X.25 Overview The X.25 Protocol provides access for LAN traffic to packet-switching networks (PSNs). X.25 allows many different kinds of

Configuring X.25 Services1-2 Figure 1-1. X.25 Network To begin communication, one DTE device (for example, a router) calls another DTE to request a d

X.25 Overview1-3 Figure 1-2. OSI/X.25 Correspondence Physical Layer The physical layer manages the transmission of bits across the physical connectio

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Configuring X.25 Services1-4 Link Access Procedure Balanced Protocol X.25 uses the Link Access Procedure Balanced (LAPB) protocol at the data link la

X.25 Overview1-5 Although detailed discussion of the LAPB MIB is beyond the scope of this guide, when you configure X.25, you automatically set up LAP

Configuring X.25 Services1-6 You can implement an X.25 DDN network as a Blacker Front-End (BFE) network. BFE is an external, standalone encryption de

X.25 Overview1-7 Figure 1-4. Sample X.25 Configuration Determining the X.121 Destination Each interface connecting to the X.25 network has an X.121 ad

Configuring X.25 Services1-8 4. To transmit the datagram across the network, the router now establishes a virtual connection between itself and desti

X.25 Overview1-9 Figure 1-6. X.25 Call Request Packet Format 2. When the local DCE receives Router A’s call request, the DCE forwards it across the X

Configuring X.25 Services1-10 Figure 1-7. Setting Up an X.25 Call Connection Transmitting Data After Router B establishes the circuit, data travels

X.25 Overview1-11 3. IP endstation 3.1.1.2 transmits data to endstation 1.1.1.2.Note that other IP endstations (for example, 1.1.1.3) can use the vir

2-1 Chapter 2Implementation Notes This chapter provides information about special features of the Bay Networks X.25 implementation, including• Data c

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Configuring X.25 Services2-2 For a complete discussion of data compression, descriptions of compression parameters, and instructions for configuring c

Implementation Notes2-3Window size and packet length can affect packet throughput across the X.25 network. Setting either the Max Window Size or Max P

Configuring X.25 Services2-4Configuring LAPB for an AN or ASNWhen you create a new X.25 line on a Bay Networks AN or ASN router, Site Manager automatic

Implementation Notes2-5DDN Default Service RecordWhen you configure the Service Type as DDN, you can automatically configure service records that use de

3-7Chapter 3Enabling X.25 ServiceThis chapter describes how to enable X.25 service. It assumes you have read Configuring Routers and that you have1. Op

Configuring X.25 Services3-8Selecting a Connector1. In the main Configuration Manager window, click on the circuit (connector) you want to configure:For

Enabling X.25 Service3-9Figure 3-2. WAN Protocols Window3.Select X.25 from the WAN Protocols menu to display the X.25 Packet Config window (Figure 3-3)

Configuring X.25 Services3-10Figure 3-3. X.25 Packet Config WindowConfiguring X.25 Packet-level Parameters1. Configure the packet-level parameters using

Enabling X.25 Service3-11You add X.25 service records from this window. Refer to “Adding X.25 Network Service Records,” later in this chapter, for ins

Bay Networks, Inc. 4401 Great America Parkway, Santa Clara, CA 950548 Federal Street, Billerica, MA 01821 Bay Networks Software License (continued)

Configuring X.25 Services3-12 Parameter: Network Address Type Default: PDN_Network Options: PDN_Network | DDN_Network | BFE_Network Function: Specifies

Enabling X.25 Service3-13 Parameter: DDN IP Address Default: None Options: Any valid IP address Function: Specifies the IP address assigned to this int

Configuring X.25 Services3-14 Parameter: Incoming SVC LCN Start Default: 0 Range: 1 to 4095 Function: Specifies the lowest logical channel number that

Enabling X.25 Service3-15 Parameter: Number of Outgoing SVC Channels Default: 0 Range: 0 to 512 Function: Specifies the number of logical channels that

Configuring X.25 Services3-16Adding X.25 Network Service RecordsAfter you click on OK in the X.25 Packet Config window, the X.25 Service Configuration w

Enabling X.25 Service3-17Figure 3-5. X.25 Service Window2.Configure the X.25 network service parameters using the descriptions that follow as a guide.3

Configuring X.25 Services3-18X.25 Network Service Record Parameter DescriptionsUse the following descriptions as guidelines when you configure the para

Enabling X.25 Service3-19 Parameter: Remote X.121 Address Default: None Options: Any valid X.121 address Function: Specifies a destination X.121 addres

Configuring X.25 Services3-20Adding X.25 Network Service Records to a Previously Configured InterfaceTo add a new network service record to an existing

Enabling X.25 Service3-21After you have selected the protocols, refer to the appropriate configuration guide for instructions on how to configure the pa

v Contents About This Guide Audience ...

Configuring X.25 Services3-22Figure 3-6. Selecting the Protocols Add/Delete Function in the X.25 Service Configuration WindowThe Select Protocols windo

Enabling X.25 Service3-23Figure 3-7. Select Protocols Windows2.From the Select Protocols window, select IP and click on OK to display the IP Configurat

Configuring X.25 Services3-24Figure 3-8. IP Configuration Window3.Configure the parameters using the descriptions that follow as a guide.Note that you d

Enabling X.25 Service3-25 Parameter: Subnet Mask Default: 0.0.0.0 Options: The Configuration Manager automatically calculates an appropriate subnet mas

Configuring X.25 Services3-26Figure 3-9. Enter Adjacent Host Window5.Enter the IP address of the adjacent host.You do not need to enter a value for th

Enabling X.25 Service3-27Figure 3-10. IP Interfaces Window8.Click on Add to configure additional IP interfaces on the X.25 circuit.The IP Configuration

Configuring X.25 Services3-28Figure 3-11. Adding an IP Interface to an X.25 Circuit9.Configure the parameters, using the descriptions that follow as a

Enabling X.25 Service3-29 Parameter: Configure OSPF Default: None Options: YES | NO Function: Specifies whether the Open Shortest Path First (OSPF) prot

4-31Chapter 4Editing X.25 ParametersAfter you enable X.25, you can edit all X.25 parameters from the Configuration Manager window (Figure 4-1). Refer t

viLoad Sharing ...2-2Clocking Sources

Configuring X.25 Services4-32Figure 4-1. Configuration Manager WindowEditing the X.25 Global ParameterThe X.25 global parameter enables X.25 services f

Editing X.25 Parameters4-33Figure 4-2. Edit X.25 Global Parameters Window2.Enable or disable X.25 services, using the Enable parameter as described in

Configuring X.25 Services4-342.Select the X.25 interface that you want to edit; then click on Edit.The Circuit Definition window appears.3. Select X25

Editing X.25 Parameters4-35X.25 Packet-level Parameter DescriptionsUse the following descriptions as guidelines when you edit the parameters in the X.

Configuring X.25 Services4-36 Parameter: Network Address Type Default: None Options: PDN_Network | DDN_Network | BFE_Network Function: Specifies the ty

Editing X.25 Parameters4-37 Parameter: DDN IP Address Default: None Options: Any valid IP address Function: Specifies the IP address assigned to this i

Configuring X.25 Services4-38 Parameter: Default Tx/Rx Window Size Default: 2 Range: 1 to 7 (for MOD8) or 1 to 127 (for MOD128) Function: Specifies a d

Editing X.25 Parameters4-39 Parameter: Number of Incoming SVC Channels Default: 0 Range: 0 to 512 Function: Specifies the number of logical channels th

Configuring X.25 Services4-40 Parameter: Bidirectional SVC LCN Start Default: 0 Range: 1 to 4095 Function: Specifies the lowest logical channel number

Editing X.25 Parameters4-41 Parameter: Use Default Service Configuration Default: OFF Options: ON | OFF Function: Creates default DDN service records

vii Figures Figure 1-1. X.25 Network ...1-2Figure 1-2. OSI/X

Configuring X.25 Services4-42 Parameter: T3 Timer Default: 200 milliseconds Range: 200 to 2000 Function: Specifies the congestion or busy condition wat

Editing X.25 Parameters4-43 Parameter: Flow Control Negotiation Default: OFF Options: ON | OFF Function: Enables the flow-control negotiation facility

Configuring X.25 Services4-44 Parameter: Max Window Size Default: 2 Range: 1 to 7 (for MOD8) or 1 to 127 (for MOD128) Function: Specifies the maximum w

Editing X.25 Parameters4-45 Parameter: Tx/Rx Throughput Class Default: THRCLASS75 Options: THRCLASS75 | 150 | 300 | 600 | 1200 | 2400 | 4800 | 9600 |

Configuring X.25 Services4-46 Parameter: Max Throughput Class Default: 19200 Options: 75 | 150 | 300 | 600 | 1200 | 2400 | 4800 | 9600 | 19200 | 48 K

Editing X.25 Parameters4-47 Parameter: Outgoing Calls Accept Default: ON Options: ON | OFF Function: Specifies whether this interface generates outgoin

Configuring X.25 Services4-48 Parameter: Fast Select Default: OFF Options: ON | OFF Function: Enables the fast select request facility on this interfa

Editing X.25 Parameters4-49 Parameter: CUG Outgoing Access Default: Null Options: Null | CUGOA Function: Specifies whether or not this interface suppor

Configuring X.25 Services4-50 Parameter: RPOA Selection Default: OFF Options: ON | OFF Function: Enables the recognized private operating agencies (RP

Editing X.25 Parameters4-51 Parameter: Full Addressing Default: ON Options: ON | OFF Function: Specifies whether the router includes a full local DTE a

Configuring X.25 Services4-52 Parameter: CCITT Conformance Default: DXE1988 Options: DXE1980 | DXE1984 | DXE1988 | FDSEL1980 | FDSEL1984 | FDSEL1988 F

Editing X.25 Parameters4-53 Parameter: Statistics Computation Default: Disable Options: Enable | Disable Function: Specifies whether the router compute

Configuring X.25 Services4-54The X.25 Service Configuration window appears (Figure 4-4). It lists all currently defined network service records.Figure 4

Editing X.25 Parameters4-556. If you are configuring DDN Service Records and you want to change the default values for service record parameters, click

Configuring X.25 Services4-56X.25 Network Service Record Parameter DescriptionsThis section provides information on how to set all network service rec

Editing X.25 Parameters4-57 Parameter: Remote IP Address Default: 0.0.0.0 Options: Any valid IP address Function: Specifies a destination IP address th

Configuring X.25 Services4-58 Parameter: Enable Compression Default: Disable Options: Enable | Disable Function: Enables data compression. Instruction

Editing X.25 Parameters4-59 Parameter: Precedence Default: OFF Options: ON | OFF Function: Specifies the priority of IP packets that this X.25 interfac

Configuring X.25 Services4-60 Parameter: Flow Facility Default: Default Options: Negot | Default Function: Enables or disables the X.25 flow-control fa

Editing X.25 Parameters4-61 Parameter: Fast Select Request Default: OFF Options: ON | OFF Function: Enables the fast select request facility on each v

ix Tables Table 2-1. X.25 Packet-level Parameters ...2-3Table 2-2. X.25 Service Record

Configuring X.25 Services4-62 Parameter: Reverse Charge Accept Default: OFF Options: ON | OFF Function: Enables or disables the reverse charge accept

Editing X.25 Parameters4-63 Parameter: User Facility (hex) Default: None Options: Any facility that needs to be included in the call request packet Fu

Configuring X.25 Services4-64 Parameter: CUG Facility Format Default: None Options: None | Basic | Extended Function: Specifies the closed user group (

Editing X.25 Parameters4-65 Parameter: CUG Number Default: 0 Range: 0 to 9999 Function: Identifies each CUG with a number so that information is routed

A-1Appendix AX.25 Parameter Default SettingsTables A-1 through A-3 list X.25 parameters and their default values..Table A-1. X.25 Global Parameter Par

Configuring X.25 ServicesA-2Default Tx/Rx Window Size 2Default Tx/Rx Pkt Length 128Number of Incoming SVC Channels0Incoming SVC LCN StartNumber of Bid

X.25 Parameter Default SettingsA-3Network User Identification OffIncoming Calls Accept OnOutgoing Calls Accept OnFast Select Accept OffReverse Charge A

Configuring X.25 ServicesA-4Table A-3. X.25 Network Service Record Parameters Parameter DefaultEnable EnableType NoneConnection ID 1Remote IP Address

Index-1AAcceptance Format parameter, 2-3, 4-21adding network service records, 3-10AN/ASN routersconfiguring LAPB, 2-4defaults for synchronous line para