3Com S200 manual Atpad Operation, Data Forwarding Criteria, Criteria Descriptions

Page 64

ATPAD Ports

ATPAD Operation

ATPAD

Data Forwarding Criteria

An ATPAD port operates in either a Command Mode or Data Mode. This port type is always in the Command mode whenever a call is not taking place.

When the ATPAD is in the Command mode, it receives characters from the attached terminal device, processes them using the ATPAD command processor, and sends a response (or result code) to the terminal. It does not forward the command to the network.

The ATPAD is in data mode when there is an X.25 network call in place to a remote device. In data mode, it receives characters from the terminal device, packetizes them, and forwards them through the network to the remote device.

You can select the format for printing with the port parameter “Result Codes”. The options are:

•ALPHA—Result codes are printed in all capitals. They are printed on a new line and the cursor is advanced to the next new line. (<CR><LF> Result Code <CR><LF>).

•NUM—The numerical equivalent result code is printed followed by a <CR>.

•NONE—No result codes are displayed.

Criteria Descriptions

This table describes three criteria used to packetize and forward data to the network.

If you want to...

Then use...

 

 

Forward data on full packets...

Forward on full packet.

 

The ATPAD always forwards on full

 

packets.

 

You can configure the maximum packet size

 

as 128, 256, 512, or 1024 bytes. You can

 

select one of the other two criteria so that

 

the ATPAD forwards data before a full

 

packet has been assembled.

 

 

Packetize and forward the characters

Forward on Data Forwarding Character.

received since the last time

You can use the Data Forwarding Timer in

expiration....

interactive sessions where the host

 

 

(Echoplex) echoes the characters typed by

 

the terminal equipment. If you want the

 

characters to be echoed as quickly as

 

possible, set the Data Forwarding Timer to a

 

low value. If you set the Data Forwarding

 

Timer to a zero value, you disable this

 

function.

 

 

Send records or command to the host

Forward on Data Forward Character

and they are always terminated by

 

the same character, for example;

 

<CR>...

 

 

 

58

Configuring PAD/ATPAD Ports

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Contents 3Com Corporation Restricted Rights Notification for U.S. Government Users Restricted Rights LegendProprietary Material Page Contents Page Configuring PAD/ATPAD Ports OverviewIntroduction Before You BeginAbout Packet Assembler/Disassembler Typical Applications ExampleConfiguration Record PAD Port ConfigurationPAD Port Guidelines If You Specify or Set ThenStep Action Result Connection Type ParametersUse Connection Type When Use Connection Type Port ControlPort Speed Auto Baud SequenceCRONLY, CRDOTCR, TYMNET, Telenet CronlyData Bits per Character Device ParityNONE, SPAC, MARK, EVEN, ODD, Auto Number of Stop BitsCall Control NONE, AUTO, AUTC, PCUD, IBAR, OBAR, MNEM, TmnemNONE, PASS, LIM, CUG, LCPY, 7BIT, NADD, X.28, Cnui Terminal ControlCUGOA, BMSG, ADDR, FRCB, Cugia Autocall Timeout sec PAD Prompt Entry NumberRemote PAD Parameters Number Autocall MnemonicMaximum Number of Autocall Attempts SubaddressGroup Subaddress CUG MembershipBilling Records Call Accept Timeout secInvitation to clear Reconnection Timeout Protection LevelNONE, CPONLY, Fulldcp Reconnection Tries LimitCalling DTE Password Maximum Receive Buffer LengthCalled DTE Address Calling DTE IdentifierPAD Command Language NUI verification timerNUI Facility Format Max NUI violationsAction Type for NUI violations NONE, DISC, DEGR, LockPAD Port Configuration for Autocalling Initiating an AutoCall Mnemonic AddressingSdlc Mnemonic Addressing Sdlc Mnemonic Autocall AddressingPAD Port Configuration for Autospeed PAD XON/OFF Support Using X.25 Interrupt Packets How It WorksStep Action Before You Begin Accessing the PAD Prompt Table Record PAD Prompt Table RecordWhat You See This RecordEntry Number PAD Prompt Table Record ParametersPAD Prompt Text PAD Profile Table Record Introduction What You See In This RecordAccessing the PAD Profile Table Record Configuration GuidelinesSelect PAD Profile Table from PAD Profile Table Record Parameters #1, PAD Recall#2, Echo #4, Idle Timer Delay#3, Data Forwarding Character #6, Service Signals Control #5, Device Flow Control#9, Padding After Carriage Return #7, Break Signal Operation#10, Line Folding #12, PAD Data Restraint #13, Line Feed Insertion after CR#14, Padding after LF #15, Editing#16, Character Delete #17, Line Delete#18, Line Display #19, Editing Type#20, Echo Mask #21 Parity Treatment#22, Page Wait #100, Break Character#101, Echo Substitution Toggle Character #102, Echo Substitution Character#103, XON Character #105, Control Signal EIA-232-D Data Restraint#104, Xoff Character #106, Network Parity #107, Idle Disconnect Timer#108, Disconnect Character #110, Esc Forwarding Delay Handling #109, Form Feed Padding#112, Dynamic Data Forwarding #111, Echo Control#113, Hewlett-Packard Flow Control #116, Short Timer Duration #114, PAD Mode#115, Data Forwarding Criteria #118, Message Assembly #117, EIA Signalling Action#119, DCD to Data Timer Duration Copying PAD Profile Tables into a Configuration PAD Profile TableSize Select Copy/Insert RecordParameter Values Stored In Memory Parameter Name Default Test Simple TransparPrinter Parameter Name TPA Hpea Hpxon Host RmotTPA Hpea Hpxon Host Rmot PAD Bulletin Parameter INT1984 IRANSP1Message Remote PAD Parameter Table Record Select Remote PAD ParameterRemote PAD Parameter Table Record Parameters #1 Parameter Number #1 Parameter Value Detailed PAD Port Statistics FunctionDescription Terms First Screen Screen Term Tells YouNull Example of Detailed PAD Port Statistics, Second ScreenDescription Terms Second Screen Example of Detailed PAD Port Statistics, Third Screen Atpad Ports Atpad Operation Data Forwarding CriteriaCriteria Descriptions If you want to Then useFlow Control XON/XOFFNetwork Parity Application Response Delay DTR Timeout Atpad Application EnvironmentConfiguration Use these guidelines when you enter Atpad commandsConfigure Atpad Port Menu Port Type NULL, PAD, X25, SDLC, FRI, ATPAD, PPPPAD SIMP, DTRData Bits ParityNONE, SPAC, MARK, EVEN, ODD Stop BitsCarriage Return Character Line Feed CharacterBack Space Character Data Forwarding CharacterEscape Sequence Timer Data Forwarding TimerXON Character NONE, CNTL, XoffAnswer Mode Packet SizeEcho Stored AddressesResult Codes ALPHA, NUM, NoneAlpha Restricted Connection DestinationNetwork Parity Protocol IDNONE, SPAC, MARK, Even Atpad Port Statistics Atpad Port Statistics ScreenNull Description Terms Second Screen Technical Support Access by Analog Modem Country Data Rate Telephone Number3Com Support fromCountry Telephone Number Returning Country Telephone Number Fax NumberSymbols IndexNumerics ApadIndex-2 Sdlc URL
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S200 specifications

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