Nortel Networks 3395A, 3395 User Manual

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Page 1

Using the Model 3395/3395A

Terminal Server

SynOptics Communications, Inc.

4401 Great America Parkway Santa Clara, CA 95052-8185

(408) 988-2400

893-386-B July 1994

Page 2

Trademarks

SynOptics, SynOptics Communications, and LattisNet are registered trademarks of SynOptics Communications, Inc. System 3000 and SynOptics Press are trademarks of SynOptics Communications, 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, SynOptics Communications, Inc. reserves the right to make changes to the products described in this document without notice.

SynOptics Communications, Inc. does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.

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.

Electromagnetic Emissions

Meets requirements of FCC Part 15, Subparts A and B, Class A En 55 022 (CISPR 22:1985), Class A General License VDE 0871, Class B (AmtsblVfg No. 243/1991 and Vfg 46/1992) VCCI Class 1 ITE

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Preface

Organization xi Conventions xi

Related Documentation.............................................................................................................xii

SynOptics Customer Support .................................................................................................... xii

Chapter 1 - Getting Started

Expanding the Network with the Terminal Server.........................................................................1-2

Using the Terminal Server .......................................................................................................1-3

The Menu Interface.....................................................................................................1-3

Dedicated Services ...................................................................................................... 1-3

Logging On to a Terminal Server Port .......................................................................................1-4

Kerberos Passwords ....................................................................................................1-4

Terminal Server Scripts...............................................................................................1-4

Managing Sessions.................................................................................................................1-5

Establishing a Session ................................................................................................1-5

Suspending a Session..................................................................................................1-6

Using Session Numbers ..............................................................................................1-6

Establishing Multiple Sessions..................................................................................... 1-6

Disconnecting From a Session......................................................................................1-7

Using Other Terminal Server Commands........................................................................1-7

Using UNIX Aliases for Terminal Server Commands........................................................1-8

Logging Out of the Terminal Server Port........................................................................1-8

If You Make a Mistake............................................................................................................1-8

Privilege Levels.....................................................................................................................1-8

Summary..............................................................................................................................1-9

Chapter 2 - The User Interface

Entering Commands ...............................................................................................................2-1

Abbreviating Commands and Keywords..........................................................................2-1

Editing the Command Line ......................................................................................................2-1

Assigning Session Management Functions to Keyboard Characters..................................................2-3

Assigning a Local Switch Character...............................................................................2-4

Using the Break Key...................................................................................................2-4

Session Switching Characters...................................................................................................2-4

Telnet Session Management Characters ......................................................................................2-5

Using the Terminal Server Menu...............................................................................................2-6

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Chapter 3 - Using Model 3395 Terminal Server Commands

Viewing and Changing Information in the Terminal Server Databases ..............................................3-2

Using the SHOW|LIST Commands ...............................................................................3-2

Using UNIX Aliases for Terminal Server Commands....................................................................3-2

BACKWARDS..........................................................................................................3-3

CONNECT...............................................................................................................3-5

DISCONNECT.........................................................................................................3-10

FORWARDS...........................................................................................................3-11

HELP.....................................................................................................................3-13

LAT CONNECT.......................................................................................................3-16

LOCK 3-19

LOGOUT PORT.......................................................................................................3-20

RESUME................................................................................................................3-21

RLOGIN .................................................................................................................3-23

SCRIPT ..................................................................................................................3-25

SET PORT .............................................................................................................3-27

SET SESSION .........................................................................................................3-35

SHOW DESTINATIONS ...........................................................................................3-37

SHOW|LIST DOMAIN..............................................................................................3-39

SHOW NODES........................................................................................................3-41

SHOW NODES STATUS ....................................................................................3-42

SHOW NODES SUMMARY................................................................................3-43

SHOW NODES COUNTERS ...............................................................................3-44

SHOW|LIST PORT...................................................................................................3-46

SHOW|LIST PORT CHARACTERISTICS .............................................................3-47

SHOW|LIST PORT ALTERNATE CHARACTERISTICS.........................................3-53

SHOW|LIST PORT TELNET CHARACTERISTICS................................................3-57

SHOW|LIST PORT COUNTERS ..........................................................................3-60

SHOW|LIST PORT STATUS ...............................................................................3-62

SHOW|LIST PORT SUMMARY ..........................................................................3-64

SHOW PORT KEYMAP .....................................................................................3-65

SHOW|LIST SERVICES ...........................................................................................3-67

SHOW SESSIONS ...................................................................................................3-71

TELNET CONNECT.................................................................................................3-74

XCONNECT............................................................................................................3-77

ZERO COUNTERS ..................................................................................................3-79

Chapter 4 - TN3270 Sessions

Checking the TN3270 Characteristics at Your Port.......................................................................4-1

Using the SHOW PORT KEYMAP Command................................................................4-2

Establishing a TN3270 Session with an IBM Host.......................................................................4-2

Using Hot Keys.....................................................................................................................4-3

The Scroll Lower key..................................................................................................4-3

The Status Key..........................................................................................................4-3

Keyboard Maps......................................................................................................................4-4

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Chapter 5 - Using the Multisessions Feature

Managing Sessions Within Windows.........................................................................................5-1

Establishing the First Session ...................................................................................... 5-2

Establishing the Second Session ...................................................................................5-4

Establishing Three or More Sessions .............................................................................5-5

Logging Out of the Terminal Server Port........................................................................5-5

Using Terminal Server Commands Within Windows.....................................................................5-5

BACKWARDS..........................................................................................................5-6

CONNECT...............................................................................................................5-6

DISCONNECT..........................................................................................................5-6

FORWARDS............................................................................................................5-6

RESUME.................................................................................................................5-7

SHOW SESSIONS ....................................................................................................5-7

SHOW|LIST PORT CHARACTERISTICS .................................................................... 5-7

Using Session Management Characters Within Windows...............................................................5-7

Backward Switch........................................................................................................5-8

Forward Switch..........................................................................................................5-8

Chapter 6 - Transferring Files with a Personal Computer

File Transfer Procedure............................................................................................................6-1

Transferring a File with the Kermit File Transfer Program.............................................................6-2

Index

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Figures

Figure 1-1 Using the Model 3395 Terminal Server ....................................................................1-1

Figure 1-2 A terminal server on an Ethernet LAN......................................................................1-2

Figure 2-1 A terminal server menu .........................................................................................2-6

Figure 4-1 A SHOW PORT TELNET CHARACTERISTICS display set for TN3270 connections..... 4-1

Figure 4-2 A sample IBM logon screen ...................................................................................4-2

Figure 5-1 An example of a split screen...................................................................................5-2

Figure 5-2 A multisessions screen with one session established...................................................5-3

Figure 5-3 A multisessions screen with two sessions established..................................................5-4

Figure 5-4 A sample show sessions display with multisessions enabled.........................................5-7

Figure 6-1 A file transfer from a host computer to a PC............................................................. 6-2

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Tables

Table 2-1 Editing characters .................................................................................................2-2

Table 2-2 Session switching functions................................................................................... 2-4

Table 2-3 Telnet session functions........................................................................................ 2-5

Table 3-1 UNIX aliases for Model 3395 commands.................................................................. 3-2

Table 4-1 VT100/102 and ANSI 3.64 keyboard map.................................................................4-3

Table 4-2 VT220/7-bit keyboard map.....................................................................................4-5

Table 4-3 VT220/8-bit keyboard map.....................................................................................4-7

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Preface

This manual describes how to use the Model 3395 Terminal Server on an local area network (LAN). It explains how to use terminal server commands, and how to tailor some terminal server characteristics to suit your needs. This manual is for people who want to use the terminal server to gain access to resources on the network, rather than the individual who installs and manages the terminal server hardware and software.

The network manager at your site decides how the network is set up and how much access you have to network resources. Because of this, your system may respond differently from what this manual indicates. Follow the instructions in this manual and use the descriptions as an example of what can happen in response to the commands described here.

Organization

This manual contains the following chapters: Chapter 1 Describes the purpose of the Model 3395 Terminal Server in a local area network (LAN),

and how to get started using terminal server commands.

Chapter 2 Describes the terminal server command interface and menu interface. This chapter

describes how to use command-line editing keys, and how to use control keys for session

management. Chapter 3 Describes terminal server commands available at secure ports. Chapter 4 Explains how to use a terminal during a TN3270 session. Chapter 5 Explains the Multisessions (Dual Session Management) feature. Chapter 6 Describes how to transfer files between personal computers and hosts through the

terminal server.

Conventions

Throughout this manual, the word “Enter” means type something and then press the <New Line>, <Return>, or <Enter> key; for example, “Enter the CONNECT command” means type the word CONNECT and then press the <New Line>, <Return>, or <Enter> key.

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Preface

This manual also uses the following conventions:

COMMAND REQUIRED [OPTIONAL] [

Where Means

COMMAND You must enter the command, or its accepted abbreviation, as shown. REQUIRED You must enter a keyword, or its accepted abbreviation, as shown. [OPTIONAL] You have the option of entering this keyword or variable. Do not type the [optional]

brackets; they only set off what is optional.

Additionally, this manual uses certain symbols in special ways:

Symbol Means

TS3395> This is the Model 3395 Terminal Server prompt at ports with the Secure and

Nonprivileged privilege levels.

$ This is the Digital Equipment Corporation (DEC) VAX/VMS prompt. % This is the UNIX C shell prompt.

In examples, this manual uses

This typeface to show your entry and responses and screens from the Model 3395 terminal server.

optional

]

This typeface to show responses from remote hosts and devices on the network. This typeface also shows command keywords or arguments that are variable, such as “hostname.”

SynOptics Customer Support

For assistance with installing and configuring your SynOptics systems or for post-installation questions or problems, contact your local reseller. If you cannot contact your local reseller, call the SynOptics Technical Response Center (TRC) Contract Hotline.

To contact the TRC Contract Hotline, call:

• U.S. and Canada: 1-800-473-4911

• Europe: 011-31-3480-31616

• Rest of the world: 408-764-1000 Technical information is available from the SynOptics InfoFACTS fax-on-demand system by calling:

• U.S. and Canada: 1-800-786-3228

• International: 408-764-1002 You can also access technical information in the SynOptics forum on CompuServe. For information about our education services, contact the SynOptics Training Coordinator at

1-800-473-4911 or 408-764-1018.

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Chapter 1

Getting Started

The Model 3395/3395A Terminal Server is a combination of hardware and software that links users at serial devices, such as terminals, to resources on both local area networks (LANs) and wide area networks (WANs). These resources include a variety of hosts, workstations, and printers, as well as other SynOptics terminal servers. You can use a terminal server to gain access to any of these hosts on the network:

• UNIX hosts that support the TCP/IP protocol

• International Business Machines (IBM) hosts that have a Telnet server

• DEC VAX hosts running ULTRIX that support TCP/IP

• DEC VAX hosts that support the Local Area Transport (LAT) protocol When a user such as the one shown in Figure 1-1 makes a connection to a LAN host through the terminal

server, he can use all the resources on that host as if his terminal were directly attached to it.

VAX host

Terminal Server Cards In

SynOptics Model 3000

Concentrator

Telnet Server

Ethernet Local Area Network (LAN)

Figure 1-1. Using the Model 3395/3395A Terminal Server

IBM host

UNIX host

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Getting Started

The user in Figure 1-1 has made a connection to the UNIX host on the LAN through the terminal server. He can now read databases, send mail, and run applications on this host. He can also connect to the VAX host, the IBM host, or a serial device on the other terminal server.

Expanding the Network with the Terminal Server

The terminal server can support a variety of devices, other than terminals. These include printers, modems, data switches, personal computers, and other host computers. These devices allow terminal server users to access LAN resources in many different ways, and provide additional resources to LAN users. Figure 1-2 shows an example of a Model 3395/3395A Terminal Server on the LAN, with several different devices connected to it.

IBM Mainframe

(Accessible through a TN3270 connection)

Telnet Server

VAX/VMS System UNIX System

Ethernet Local Area Network (LAN)

Printers

Other Devices with Serial Interfaces

VAX/VMS System

Personal Computers

Host Systems

Model 3395

Terminal Server Cards In Chassis

Terminals

Modems

Data Switches

Figure 1-2. A terminal server on an Ethernet LAN

In a network like the one in Figure 1-2, terminal server users can gain access to the hosts connected directly to the LAN. Users on the LAN hosts can reach the devices connected to the terminal server, such as the printer, the host system, or the personal computer.

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Getting Started

The remaining sections of this chapter explain how you can use the terminal server in a network such as this one. These sections include the following topics:

• Using the terminal server

• Logging on to a terminal server port

• Managing sessions

• If you make a mistake

• Privilege levels

• Summary

Using the Terminal Server

When you log on to the terminal server you make a connection with a terminal server port. A port is the interface between a terminal and the other devices on the network, including hosts, printers, and other terminal servers. Each port has a set of characteristics and privileges that determine how you can use it. The network manager defines these characteristics and privileges with terminal server commands.

From the terminal server port, you can enter commands such as those described in Chapter 3 of this manual. While the privilege level and the characteristics of your port determine which commands you can use, most users can enter commands that do the following:

• Establish connections to devices on the network

• Display information about network destinations, and the characteristics of the terminal server port

• Modify some characteristics of the terminal server port

The Menu Interface

On some terminal servers, the network manager may have created a menu that overrides the terminal server's command interface. The menu displays choices that you can select to establish connections on the network, or change the configuration of your port. Chapter 2 describes the menu interface in more detail, but the information described here about logging on and off the port and establishing sessions will still be useful to you, even if you are using a menu.

Dedicated Services

The network manager can define a dedicated service at a terminal server port. If so, the terminal server automatically connects the port to a host on the network when you log on to the port. While you might not be able to use the terminal server commands in this manual if your port has a dedicated service, you can read this chapter for general information about the terminal server.

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Getting Started

Logging On to a Terminal Server Port

If your terminal is connected directly to a terminal server port, press the <Return> key until one of the following prompts appears on the screen. If your terminal is connected to a host on the terminal server network, log off of the host, or suspend your current session by pressing the <Break> key or the local switch character. Then, press the <Return> key until one of these prompts appears and use the appropriate procedure:

# Enter your login password and press the <Return> key. The default password on

many terminal servers is ACCESS, but the network manager may have defined a different password for your terminal server. When you enter the correct password, the Enter username> prompt appears.

Enter username> Enter your username and press the <Return> key. Your terminal server

implementation may require specific usernames. If not, you can enter any username between 1 and 16 characters, or enter <Ctrl><Z> to automatically assign the username PORT_x at this port, where x is your port number. When you enter your username correctly, the TS3395> prompt appears.

TS3395> This is the default local command prompt, and it means that you are logged on

to a terminal server port. When you see this prompt, you can enter terminal server commands.

Note: These are the default prompts that the Model 3395/3395A Terminal Server includes with the

terminal server software. The network manager can change these prompts, however, so the prompts on your terminal server may be different.

Kerberos Passwords

Kerberos is an Internet network authentication service that may exist on your terminal server. It requires that you enter a Kerberos password to gain access to the terminal server. The Kerberos password prompt appears after the Username> prompt in the Model 3395 Terminal Server login sequence, and looks like this:

Enter user password>

If this or a similar prompt appears at your terminal, enter a Kerberos password.

Terminal Server Scripts

Some terminal server ports automatically execute a predefined set of terminal server commands called a script when you log on to the port. The script may prompt you for a password, change some characteristics of the port, or establish a connection with a host on the network. The information in this chapter will still be useful to you, however, even if your port automatically executes a script when you log on.

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Getting Started

Managing Sessions

The connection between a terminal server port and a device on the network is called a session. You can establish a session with a LAT service, a Telnet host, an IBM host, or another terminal server after you log in to the terminal server port. The Model 3395/3395A Terminal Server allows you to open several sessions simultaneously, and move among them while you work. The next sections explain how to establish and manage sessions.

Establishing a Session

Several terminal server commands establish sessions with LAN destinations, but the one you will probably use most often is the CONNECT command. If you know the name or address of the device where you want to establish a session, simply enter it with the CONNECT command at the prompt and press the <Return> key:

TS3395> connect

If you are not sure of the names and addresses on your network, you can view a list of all the different destinations on the LAN with the SHOW DESTINATIONS command. (Some of the destinations in this list may be unavailable to you for security reasons. The network manager can tell you if this is the case.) When you enter the SHOW DESTINATIONS command, a list similar to the following appears on the terminal:

TS3395> show destinations FINANCE.SUN.COM UNIX Host at 140.179.20.1

ACCOUNTSVAX VAX/VMS LAT SERVICE

PAYROLLHOST IBM Host

LASER2 Department Laser Printer

The first column on the list shows the names you can use in connect commands to reach a service or a host. The second column displays information about each destination name, such as a description of a service or the Internet address of a Telnet domain. The information in the second column may or may not appear; the destination names in the first column are all you need to make a connection.

To establish a session with the Telnet host FINANCE.SUN.COM, for example, you could enter the CONNECT command like this:

TS3395> connect finance.sun.com

destination-name

TS3395 -010- Session 1 to FINANCE.SUN.COM established

Welcome to Finance.SUN.COM Enter username:

You can also use the Internet address of a Telnet domain with the CONNECT command. Internet addresses usually appear next to the domain names in the SHOW DESTINATIONS display or the SHOW DOMAINS display.

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Getting Started

Suspending a Session

When you suspend a session, you recall the Model 3395/3395A command interface without terminating the connection to the remote resource. Later, you can reopen the session and continue with your work. To suspend a session, press the Break key or the local switch character during the session. (A local switch character is a control character sequence that you or the network manager can define. Chapter 2 explains how to do this.) The TS3395> prompt appears, and you can enter any terminal server command, including the CONNECT command:

$ <BREAK> TS3395>

The next sections show how to use the RESUME command to reopen a previously suspended session.

Using Session Numbers

Each time you establish a session, the terminal server software assigns it a session number. The session number appears in a display line right above the logon banner of the remote host. In the previous example, the session number for the connection to FINANCE.SUN.COM was 1:

TS3395 -010- Session 1 to FINANCE.SUN.COM established

You can use session numbers with several terminal server commands when you switch among different sessions, view the status of sessions, and disconnect from sessions.

Establishing Multiple Sessions

The terminal server command interface allows you to establish two or more sessions simultaneously. You can then switch from one session to another without disconnecting from either of them. You can switch sessions with terminal server commands, or define session switching characters for this purpose. Most ports support up to four simultaneous sessions, and the network manager can enable a port to support up to sixteen simultaneous sessions.

To establish a second session, suspend the current session with the Break key or the local switch character and enter a connect command to establish the next session. You can then suspend that session and go back to the previous session. The SHOW SESSIONS command displays all of your active sessions and their session numbers. The display is similar to this one, for a user named Johnson, with three active sessions:

TS3395> show sessions

Port 12: Johnson Service Mode Current Session 2

- Session 1: Connected Interactive FINANCE.SUN.COM

- Session 2: Connected Interactive ACCOUNTSVAX

- Session 3: Connected Interactive PAYROLLHOST

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Getting Started

To switch from session 2 at a LAT service to session 1 at FINANCE.SUN.COM, you could use a sequence like this with the RESUME command, beginning at the LAT service:

$ <BREAK> FINANCE.SUN.COM session 1 resumed

Disconnecting From a Session

You can disconnect from a session in two ways. If you are currently logged on to a host or service, enter the normal logoff command of the host or service. In this example, the user Johnson logs off of a UNIX host:

% logoff

JOHNSON logged out at 25-AUG-1993 16:00:21.12

TS3395 -012- Session 1 disconnected from FINANCE.SUN.COM TS3395 -101- 2 other session(s) active TS3395>

When the host or service accepts your logoff request, the terminal server terminates the session. It also displays a message that indicates if you still have active sessions.

If you are running the terminal server software because you have suspended a session, use the terminal server DISCONNECT command from the TS3395> prompt. Enter the session number with the command, and the terminal server will terminate the session:

TS3395> disconnect session 1 TS3395 -011- Session 1 disconnected from FINANCE.SUN.COM TS3395 -101- 2 other session(s) active TS3395>

Use the SHOW SESSIONS command to display active session numbers.

Using Other Terminal Server Commands

Many other terminal server commands are available to you, other than the session management commands described in this chapter. These include HELP, SET PORT, LOCK, and several others. HELP provides online information about all terminal server commands, SET PORT modifies the characteristics of your port, including the functions of control characters, and LOCK prevents other users from gaining access to your port while you are away. You enter all of these commands from the TS3395> prompt. Chapter 3 describes these and other commands in detail.

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Getting Started

Using UNIX Aliases for Terminal Server Commands

The Model 3395 Terminal Server software provides several UNIX equivalents, or aliases, for Model 3395/3395A Terminal Server commands. If you work in a UNIX environment, you may want to use these aliases because they will be more familiar to you than the Model 3395/3395A commands. Instead of the terminal server HELP command, for example, you can enter the MAN command. Chapter 3 includes a description of the UNIX aliases for terminal server commands.

Logging Out of the Terminal Server Port

The terminal server LOGOUT command logs you out of the terminal server port. When you do this, the terminal server disconnects any sessions that are still active.

TS3395> logout TS3395 -020- Logged out port 12 on server XFF4B15 at 22 September 1993

16:12:00

The log out message includes your port number and the name of the terminal server, as well as the date and time you logged off.

If You Make a Mistake

Do not be concerned if you make a mistake, such as a typing error, when you enter a command. The terminal server displays an error message and often some information that helps you correct the command. In any case, you can reenter the command correctly, or recall and edit the command line with the editing characters described in Chapter 2.

Privilege Levels

Privilege levels determine which terminal server commands you can use. The network manager can set the privilege level at each port to one of three levels:

• Secure

• Nonprivileged

• Privileged

All the commands in this manual are available at Secure ports. The two other higher privilege levels, Nonprivileged and Privileged, allow users to enter system

management commands, gain access to other users' ports, and alter the parameters in the terminal server database. The Software Management Guide for the Model 3395/3395A Terminal Server describes the Nonprivileged and Privileged levels in more detail, and Commands Reference for the Model 3395/3395A Terminal Server describes all the commands available to users with these privilege levels.

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Getting Started

Summary

The Model 3395/3395A Terminal Server provides you with access to many resources on the network that might be unavailable to you otherwise. To use the terminal server, you log on to a terminal server port and establish sessions with hosts or other terminal server ports. You can suspend sessions and establish new sessions, so that you have several simultaneous connections. Terminal server privilege levels determine which commands and command options you can use at a terminal server port.

The remaining chapters of this book include information that helps you use the terminal server. These chapters include more details about the user interface, complete descriptions of the Secure level commands, how to use the Multisessions feature if your terminal supports it, information about TN3270 connections, and how to transfer files between a personal computer and a host through the terminal server.

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Chapter 2

The User Interface

This chapter describes how to use the terminal server command interface and the terminal server menu interface. It includes these topics:

• Entering commands

• Editing the command line

• Assigning session management functions to keyboard characters

• Session switching characters

• Telnet session management characters

• Using the terminal server menu If your port has the Multisessions characteristic enabled, the user interface behaves somewhat differently

than the way this chapter describes it. See Chapter 5, “Using Multisessions Feature,” in addition to this chapter for information about entering commands and using session management control characters in a Multisessions environment.

Entering Commands

You enter commands at the terminal server prompt:

TS3395> COMMAND KEYWORD

variable

Most terminal server commands allow you to enter two or more keywords and variables on the command line. If you do this, separate each characteristic with a space, a comma, or a combination of both. You can enter a command line that exceeds the line length of the screen as long as you do not press the <Return> key until the command line is complete. The maximum length of a command line is 132 characters.

You can abbreviate many terminal server commands and keywords to the shortest unambiguous string of characters that the terminal server can interpret. For example, the CONNECT command begins with C, and C is the only character you need to enter the CONNECT command. You could also enter CON or CONNE. Each command description indicates whether or not you can abbreviate it. If so, the command description lists the minimal number of characters that you can enter to execute the command.

]

Abbreviating Commands and Keywords

variable

[KEYWORD

variable

]. . .[[KEYWORD]

Editing the Command Line

You can change, correct, or edit the command line before you press the <Return> key, or recall previous command lines, with special keys and control characters. To use control characters, press the Control key and the second character simultaneously. Table 2-1 lists these editing keys and the control characters that come predefined with the terminal server software.

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The User Interface

Users at Nonprivileged and Privileged ports can change the defaults for the editing characters with the SET PORT command, so the characters on your port may not have the same functions as the ones shown in Table 2-1. At most terminals, you can use the SHOW|LIST PORTS ALTERNATE CHARACTERISTICS command to check the control character sequences for the editing functions at your port.

Table 2-1. Editing characters

Key Sequence Function

<CTRL> <A> Alternates between insert character mode and overstrike character.

Overstrike mode is the default. This function does not apply to hardcopy terminals.

<CTRL> or up arrow key ↑

<CTRL> <D> or left-arrow key ←

<CTRL> <E> Moves the cursor to the end of the current command line. This

<CTRL> <F> or right-arrow key →

<CTRL> <H> Moves the cursor to the beginning of the command line. This

<CTRL> <N> or down-arrow key ↓

<CTRL> <R> Redisplays the current command line. This command is useful after

<CTRL> Deletes all characters from the cursor position to the beginning of the

<CTRL> <V> Quotes the next character, so that the terminal server interprets it as a

Recalls the previous command.

Moves the cursor one position to the left. This function does not apply to hardcopy terminals.

function does not apply to hardcopy terminals. Moves the cursor one position to the right. This function does not

apply to hardcopy terminals.

function does not apply to hardcopy terminals. Recalls the next command in the command history.

you have deleted characters on a hardcopy terminal.

command line.

variable. (This function is useful if you want to redefine control

characters.) <CTRL> <X> Deletes the current command line. <CTRL> <Z> Cancels an interactive operation, such as changing a password, or

deletes the current command line. <DELETE>

or <backspace>

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Deletes the character to the left of the cursor. On hardcopy terminals,

the terminal server adds a backslash (\) to previously printed characters

to indicate that you have deleted them.

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The User Interface

The following example shows how to use the command line recall and editing features. Suppose that you enter the following command, which contains a typographical error:

TS3395> shw port characteristics

The terminal server would not accept the command because you spelled SHOW incorrectly. Instead of retyping the whole command line, however, you could use the up-arrow key or <CTRL> to recall the incorrect command and then edit it:

TS3395> ↑ TS3395> shw port characteristics

The cursor appears at the end of the command line. Next, type <CTRL><H> to move the cursor to the beginning of the command line. Press the right-arrow key (or type <CTRL><F>) so that the cursor is under the letter W in SHW. Type <CTRL><A> to enter insert mode, and then add the letter O to spell SHOW. Press the <Return> key to enter the correct command.

Assigning Session Management Functions to Keyboard Characters

The terminal server supports several session management functions that you can assign to character sequences with the SET PORT command. Two types of session management functions are available: general session switching and Telnet session management. Session management characters are very useful because you can gain access to them from within sessions, rather than entering the equivalent commands from the TS3395> prompt.

The terminal server has no predefined characters for session management, as it has for command line editing characters. Unless the network manager has already defined them for your port, you must define them yourself. The SHOW PORT CHARACTERISTICS command displays the current session management characters.

You can assign session management functions to individual characters, or to control character sequences, such as several of the editing characters. To use a character this way, you press the control key and the character simultaneously. When you assign session management functions to control character sequences, you can still use the individual character without the control character, such as in a text string. When you do, the terminal server does not execute the session management function.

You can assign session management functions to the alphabet characters (except I, J, and M), with or without the <Control> key, that do not already have editing functions assigned to them. Table 2-1 shows the default settings for the editing characters, and the SHOW PORT ALTERNATE CHARACTERISTICS command displays the current settings for the editing characters. Some other keyboard characters may be available for use as control characters, including these: [ \ ] ^ _ ` { | } ~

This example shows how to assign the local switch function, which suspends an active session, to the <CTRL><L> sequence. Note that when you press the <Control> key at the TS3395> prompt, and then press another character, the <Control> key appears as ^ .

TS3395> set port local switch ^l TS3395>

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The User Interface

The user at this port can now use <CTRL><L> to suspend an active session. Because this is a SET command, it takes effect immediately, but remains in effect only until you log off of the port.

Assigning a Local Switch Character

If your terminal or workstation does not have a Break key, you must define a local switch character to suspend a session. The Break key is the only predefined character that suspends a session. You can set the local switch character when you first log on to the port, before you establish any sessions. This way, you do not need to log off of a session to return to the terminal server local command prompt. See the previous section for an example of how to set the local switch character.

Using the Break Key

On most terminals, the Break key acts as a local switch character to suspend a session. Privileged and Nonprivileged users can change this setting of the Break key, however. The network manager can set the terminal server port to ignore the Break key during a session, or to send a break sequence to the local host during a session rather than the terminal server command interface. If you have questions about the behavior of the Break key on your terminal, see the network manager or ask a user at a Privileged port to change the port characteristic for this key.

Session Switching Characters

Session switching characters suspend the current session and resume other active sessions. You can use these keys in both Telnet and LAT sessions. Table 2-2 lists the keywords you use with the SET PORT commands to assign session switching functions to control characters.

Table 2-2. Session switching functions

Keyword Session Switching Function

BACKWARD SWITCH Suspends the current session and reopens the next lower-numbered

session. The function of this switch is similar to that of the

BACKWARDS ommand. FORWARD SWITCH Suspends the current session and reopens the next higher-numbered

session. The function of this switch is similar to that of the

FORWARDS command. LOCAL SWITCH Suspends the current session and returns the local TS3395> command

prompt. You must define this character to suspend a session if your

terminal does not have a <Break> key.

See Chapter 3 for more information about how to use these keywords with the SET PORT command.

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The User Interface

Telnet Session Management Characters

Telnet session management characters provide command line editing and process management during a Telnet session. Table 2-3 lists the keywords you use with the SET PORT commands to assign Telnet session management functions to control characters

Table 2-3. Telnet session functions

Keyword Telnet Session Function

TELNET ABORT Stops a program from sending output to the terminal without

terminating the program itself.

TELNET ATTENTION Returns the session to the local operating system command prompt.

If you press the Telnet Attention key during a Telnet session at a Model 3395/3395A Terminal Server, the remote terminal server port passes the break request to the host or device where it is connected. (This also happens in any session if you press the <Break> key when

the PORT BREAK characteristic is set to REMOTE.) TELNET ERASE CHARACTER Deletes the character to the left of the cursor. TELNET ERASE LINE Deletes all data to the left of the cursor in the current line. TELNET INTERRUPT Suspends, interrupts, or aborts a user process. TELNET QUERY Requests that the Telnet host or port send a signal to the terminal

that indicates it is still up and running. TELNET SYNCHRONIZE Regains control of a process that is no longer executing properly.

See Chapter 3 for more information about how to use these keywords with the SET PORT commands.

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The User Interface

Using the Terminal Server Menu

The Model 3395/3395A Terminal Server software running on your terminal server may have a menu interface rather than a command interface. You will know this if a menu appears on your screen rather than the TS3395> prompt when you log on to the terminal server port. You see a menu similar to the one in Figure 2-1.

Welcome to the Model 3395 Terminal Server

1. Connect to FINANCEVAX

2. Connect to UNIXSUN

3. Connect to LOCALVAX

7. Show Queue

8. Lock Terminal

9. Change Mode - Binary

10. Change Mode Interactive

20. Logout

Enter number of selection>

Figure 2-1. A terminal server menu

One or more options appear on the menu, preceded by a number. To select an option, enter the number corresponding to the option at the prompt and press the <Return> key. This method of selecting an option works whether your port's TYPE characteristic is set to HARDCOPY, SOFTCOPY, or ANSI. For example, you could select the Connect to FINANCEVAX option in Figure 2-1 like this:

Enter number of selection> 1

When you make the selection, the terminal server executes the appropriate command. When you suspend a session, or execute a terminal server command, the menu does not reappear on your screen until you press the <Return> key.

If the TYPE characteristic at your port is set to ANSI, you can also use the arrow keys to position the cursor on the option you want, and then press the <Return> key. The SHOW PORT CHARACTERISTIC display includes the port's TYPE characteristic.

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Chapter 3

Using Model 3395/3395A Terminal Server

Commands

This chapter describes the commands you can use at Secure ports. These commands establish sessions, display information about LAN destinations, sessions, and services, and allow you to specify some characteristics of your own port. Some commands have options that are available only at Nonprivileged or Privileged ports, and the command descriptions indicate this. For more information about commands available at Nonprivileged and Privileged ports, see Commands Reference for the Model 3395/3395A

Terminal Server.

In addition to the command descriptions, this chapter includes information about these topics:

• Viewing and changing information in the terminal server databases

• Using UNIX aliases for terminal server commands These are the commands in this chapter:

BACKWARDS CONNECT DISCONNECT FORWARDS HELP LAT CONNECT LOCK LOGOUT PORT RESUME RLOGIN SCRIPT SET PORT SET SESSION SHOW DESTINATIONS SHOW|LIST DOMAIN SHOW NODES SHOW|LIST PORT SHOW|LIST SERVICES SHOW SESSIONS TELNET CONNECT XCONNECT ZERO COUNTERS

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Terminal Server Commands

Viewing and Changing Information in the Terminal Server Databases

The terminal server maintains two files of data, or databases, that contain information about the terminal server and the devices you can reach on the network. One is the operational database and other is the permanent database. Information in the operational database is temporary, and remains current only until you log out of your terminal server port. While it is current, it overrides the information in the permanent database. You change information in the operation database with SET commands. Information in the permanent database is constant, and remains constant unless you or the network manager change it with a DEFINE command and you log out of your port, or the network manager initializes the terminal server.

Using the SHOW|LIST Commands

The SHOW commands display information in the terminal server's operational database. The LIST commands display information in the terminal server's permanent database. Information in the SHOW displays reflect the most current information about your port and the destinations you can reach on the LAN.

Using UNIX Aliases for Terminal Server Commands

If you are accustomed to the UNIX operating system, the Model 3395/3395A Terminal Server offers several UNIX equivalents of frequently used Model 3395/3395A commands. You can enter these equivalents, or aliases, at the TS3395> prompt just as you would enter the Model 3395/3395A commands to produce the same results. Table 3-1 shows the UNIX aliases for Model 3395/3395A commands.

Table 3-1. UNIX aliases for Model 3395/3395A commands

Model 3395/3395A Command UNIX Alias

SHOW PORT STATUS [port-list] STATUS [port-list] RESUME session number FG session-number HELP MAN SHOW SESSIONS JOBS DISCONNECT [session] CLOSE or KILL [session] TELNET CONNECT [domain-name]

[internet-address] LOGOUT [ PORT port-list] QUIT [port-list]

Each command description includes the UNIX alias, if one exists, in the Notes section.

OPEN [domain-name] [internet-address]

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BACKWARDS Reopen the next available lower-numbered session

The BACKWARDS command reopens the next available, lower-numbered session already established at your port. Use the SHOW SESSIONS command to display information about active sessions, including their session numbers.

Notes

The terminal server assigns a number to each session you establish. The server records these session numbers in a rotating list for use by the FORWARDS and BACKWARDS commands. Therefore, when the lowest-numbered session is current, using the BACKWARDS command reopens the highest-numbered session. When only one session is active at a port, the BACKWARDS command reopens that session.

In a Multisessions environment, the BACKWARDS command reopens the next lowernumbered session that does not already appear in a window. See Chapter 5 for more information about how the MULTISESSIONS characteristic affects the BACKWARDS command.

If you have defined a backward switch character, you can reopen the next available lower-numbered session from within the current session, rather than from the terminal server command interface. See Chapter 2 and the SET PORT command in this chapter for more information about the backward switch character.

BACKWARDS

Syntax

Abbreviation

Example

BACKWARDS

A user whose current session is session 2, enters the BACKWARDS command to reopen session 1. First, the user enters the SHOW SESSIONS command to display all active sessions, and check the number of the current session.

TS3395> show sessions Port 12: charlie Service Mode Current Session 2

- Session 1: Connected Interactive FINANCE.SUN.COM

- Session 2: Connected Interactive PAYROLLVAX

- Session 3: Connected Interactive UNIX.HOST.COM

The display shows that session 2 is current. Now the user reopens session 1.

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BACKWARDS

TS3395> backwards TS3395 -012- FINANCE.SUN.COM session 1 resumed

The user's current session is now session 1. If this user suspended session 1 and entered the BACKWARDS command again, the terminal server would reopen session 3 at UNIX.HOST.COM, because session 3 is next on the rotating list.

Related Commands

These commands provide functions that are useful with or similar to the BACKWARDS command:

Command Function

SHOW SESSIONS Displays a list of active sessions and their session numbers

at your port. FORWARDS Reopens the next higher-numbered session. RESUME Reopens the session that you specify in the command line,

or the previous session.

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CONNECT Establish a session with a resource on the network

The CONNECT command establishes a session with a Telnet destination or a LAT service. Use the SHOW DESTINATIONS command to obtain a list of LAT service names and Telnet destination names on the network.

Notes

TELNET CONNECTIONS: The terminal server may take a few seconds to establish a Telnet connection to a domain name after it has been initialized. During this time, the server is attempting to locate the Domain Name Server, look up the Internet address for the domain name, and then make the connection. Subsequent attempts to connect to that Telnet host occur without delay, because the terminal server has a record of the Telnet address for that domain name.

TN3270 CONNECTIONS: You can use an Internet address or a domain name to reach an IBM host and establish a TN3270 session. Once you make the connection, your terminal emulates an IBM 3270 display station. See Chapter 4 for more information about TN3270 terminal emulation.

LAT CONNECTIONS: LAT services can exist at more than one LAT service node, or terminal server port. The node-name and port-name variables allow you to specify a service node or port when this is the case. If a LAT service exists at more than one service node or port and you do not specify one in the CONNECT command, the terminal server makes a connection based on which has the highest rating. This rating indicates the ability of the node or port to support additional connections.

CONNECT

Some LAT services may require that you supply a password before you can use them. If a LAT service requires a password, the terminal server prompts you for it after you enter the CONNECT command. Enter the password and press the <Return> key. Check with the network manager if you have questions about the password for a LAT service. See the Examples section of this command description for an example of a LAT service with password protection.

LAT services allow a limited number of connections from terminal server ports. When the number of connections to a service has reached the maximum amount, additional connection requests are placed in a queue if one is enabled. If you request a connection to a service, and the service does not respond, it may already have the maximum number of terminal server connections or it may be unavailable.

PREFERRED SERVICES: If you enter the CONNECT command without a destination, the terminal server searches for a predefined preferred LAT service or a preferred Telnet destination. Preferred services are defined by the network manager, but you can check to see if a preferred service has been defined for your port with the SHOW|LIST PORTS CHARACTERISTICS command.

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CONNECT

Syntax

CONNECT [

Abbreviation

C [SERV] [NOD] [DEST]

Where Means

domain-name Establish a session with the Telnet host you specify in this variable. A domain name

may contain up to four segments, separated by a period.

internet- Establish a session with the destination at the Internet address you specify address in this variable. An Internet address consists of four numbers, separated by a period.

:telnet-port- Establish a session using the number of an Internet protocol or the port number number you specify in this variable. Precede the port number with a colon (:) to

separate it from the domain name or the Internet address. Valid port numbers are the whole numbers 1 through 32767.

service-name Establish a session with the LAT service you specify in this variable. A service name

can consist of 1 through 16 characters.

domain-name[:telnet-port-number

[

internet-address[:telnet-port-number

[[SERVICE]

[DESTINATION

service-name

port-name

] [NODE

]

]]

node-name

]]

]

NODE Establish a session with the LAT server at the node you specify in the node-name

variable. Use this keyword when the LAT service you in the service-name variable is offered at more than one node, and you want to specify the node.

node-name Establish a session with the LAT service at the node you specify in this variable. A

node name can consist of 1 through 16 ASCII characters.

DESTINATION Establish a session with the LAT service at the remote port you specify in the variable.

Use this keyword when the LAT service you specified in the service-name variable is offered at a port on another terminal server, and you want to specify that port.

port-name Establish a session with the LAT service at the port you specify in this variable. A

port name can consist of 1 through 16 ASCII characters. The default name for a port on a Model 3395/3395A Terminal Server has the form PORT_x, where x is the number of the physical terminal server port (1 through 16).

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Examples of Telnet Connections

1. This command uses the Telnet domain name FINANCESUN.SYNOPTICS.COM.

TS3395> connect financesun.synoptics.com TS3395 -010- Session 5 to FINANCESUN.SYNOPTICS.COM

established

You have reached FINANCESUN.SYNOPTICS.COM

Enter your username/password pair

Username:

2. This command uses the Internet address 128.10.2.30 and the Telnet port number

23.

TS3395> connect 128.10.2.30:23 TS3395 -010- Session 6 to 128.10.2.30:23 established

Welcome to DevelopmentSUN

Please log on.

Example of a TN3270 Connection

CONNECT

This command uses a Telnet domain name to reach an IBM host. Once the connection is established, the user's terminal emulates an IBM 3270 display station, and the terminal's keyboard responds like an IBM keyboard.

TS3395> connect ibmhost.com TS3395 -010- Session 3 to IBMHOST.COM established

This is IBMhost.COM Username:

Examples of LAT connections

1. This command establishes a session with a LAT service named FINANCEVAX,

which requires a password. The password does not echo on the screen when the user enters it.

TS3395> connect financevax Password> TS3395 -010- Session 1 to FINANCEVAX established

Welcome To FINANCEVAX

Please log on.

xxxxxxx

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CONNECT

2. This command uses the LAT service name ACCOUNTSVAX and the LAT node

name VAX1.

TS3395> connect accountsvax node vax1 TS3395 -010- Session 2 to ACCOUNTSVAX established

Welcome to ACCOUNTSVAX

Please log on.

3. This command uses the LAT service name LASER, which is offered at terminal

server port 2 on the node named TAX9000.

TS3395> connect laser node tax9000 destination port_2 TS3395 -010- Session 3 to LASER established Username>

Example of a Preferred Service

This CONNECT command has no destination name or Internet address. The terminal server searches for a predefined LAT preferred service or preferred Telnet destination. In this example, the preferred service is a LAT host named ACCOUNTSHOST.

TS3395> connect TS3395 -010- Session 4 to ACCOUNTSHOST established

This is ACCOUNTSHOST Please enter your username:

If the preferred service had not been defined, the message Preferred service has not been defined would have appeared at the user's terminal. If this happens to you, see the

network manager, or enter a LAT service name or Telnet domain name with the CONNECT command.

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Related Commands

These commands provide functions that are useful with or similar to the CONNECT command:

Command Function

SHOW DESTINATIONS Displays a list of LAT services and Telnet destinations. SHOW DOMAIN Displays a list of learned and static Telnet destinations on

the network. SHOW NODES Displays a list of LAT service nodes. SHOW SERVICES Displays a list of LAT services. TELNET CONNECT Establishes a session with a Telnet destination. LAT CONNECT Establishes a session with a LAT service. RLOGIN Establishes a session with a host that has been configured

for an RLOGIN implementation. DISCONNECT Terminates a session between the terminal server port and a

device on the LAN.

CONNECT

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DISCONNECT

DISCONNECT Terminate one or all active sessions at your port

The DISCONNECT command terminates one or more active sessions. The SHOW SESSIONS display includes the numbers of active sessions at your port, which you can use with the DISCONNECT command.

Notes

Users at Secure ports can terminate sessions only at their own ports.

UNIX Alias: CLOSE/KILL [

Syntax

DISCONNECT [SESSION

Abbreviation

DI [S]

Where Means

SESSION Terminate the session in the session-number variable. You can also enter the DISCONNECT command without keywords or variables to terminate the current session.

session- Terminate the session you specify in this variable. number

ALL Terminate all active sessions at this port.

Example

This command terminates session 1.

TS3395> disconnect session 1 TS3395 - 011- Session 1 disconnected from FinanceSUN.COM

Related Commands

This command provides information that is useful with the DISCONNECT command:

session-number

] [ALL]

]

Command Function

SHOW SESSIONS Displays the active sessions and their session

numbers at your port.

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FORWARDS Reopen the next available higher-numbered session

The FORWARDS command reopens the next available higher-numbered session already established at your port. Use the SHOW SESSIONS command to display information about active sessions, including their session numbers.

Notes

The terminal server assigns a number to each session you establish. The server records these session numbers in a rotating list for use by the FORWARDS and BACKWARDS commands. Therefore, when the highest-numbered session is current, using the FORWARDS command reopens the lowest-numbered session. When only one session is active at a port, the FORWARDS command reopens that session.

In a Multisessions environment, the FORWARDS command reopens the next highernumbered session that does not already appear in a window. See Chapter 5 for more information about how the MULTISESSIONS characteristic affects the FORWARDS command.

If you have defined a Forward Switch character, you can reopen the next available higher-numbered session from within the current session, rather than from the terminal server command interface. See Chapter 2 and the SET PORT command in this chapter for more information about the Forward Switch character.

FORWARDS

Syntax

Abbreviation

Example

FORWARDS

A user whose current session is session 2 enters the FORWARDS command to reopen session 3. First, the user enters the SHOW SESSIONS command to display all active sessions, and check the number of the current session.

TS3395> show sessions Port 11: lynne Service Mode Current Session 2

- Session 1: Connected Interactive FINANCE.SUN.COM

- Session 2: Connected Interactive PAYROLLVAX

- Session 3: Connected Interactive UNIX.HOST.COM

The display shows that session 2 is current. Now the user reopens session 3.

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FORWARDS

TS3395> forwards TS3395 -011- UNIX.HOST.COM session 3 resumed

The user's current session is now session 3. If this user suspended session 3 and entered the FORWARDS command again, the terminal server would reopen session 1 at FINANCE.SUN.COM, because session 1 is next on the rotating list.

Related Commands

These commands provide functions that are useful with or similar to the FORWARDS command:

Command Function

SHOW SESSIONS Displays a list of active sessions and their session numbers

at your port. BACKWARDS Reopens the next lower-numbered session. RESUME Reopens the session that you specify in the command line,

or the previous session.

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HELP Display online information about commands and keywords

The HELP command displays online information about the commands and keywords you specify. This information includes a description of the command and a summary of command options.

Notes

The terminal server displays information about terminal server commands according to the privilege level of the port. If the port is Secure, for example, the terminal server displays only the commands that a Secure port accepts.

Terminal servers with limited memory display the command syntax only. All other terminal servers display the syntax and other information about the command.

For security reasons, the network manager may disable the HELP command on the terminal server, so it may not be available for use at your port.

UNIX alias: MAN

Syntax

HELP [INTRODUCTION] [

topic

] [

subtopic(s

)]

HELP

Abbreviation

H [INT]

Where Means

INTRO- Display the help introduction. If you do not enter this keyword, the DUCTION terminal server displays a list of topics.

topic and Display information about the commands and keywords you specify SUB-TOPIC

in these variables.

Example

A user enters the HELP command, selects the SHOW command as the topic, and then selects the keyword USERS as the subtopic. This example shows the extended help screen for the command. A terminal server with limited memory would display only the command syntax.

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HELP

TS3395> help Display information on commands and their parameters. HELP [command [keyword [keyword [keyword]]]] “Keyword” is one or more of the command's parameter

keywords. New users type:

HELP INTRODUCTION "Command" is one of: BACKWARDS BROADCAST CLIENT SELECTION

CONNECT CLOSE DEFINE DISCONNECT FG FORWARDS JOBS KILL Introduction LIST LOCK LOGOUT OPEN QUIT RESUME RLOGIN SCRIPT SET SETUP XPRINTER SHOW STATUS TELNET TEST ULI WHO XCONNECT ZERO COUNTERS

Enter <CTRL/Z> to exit HELP or press <RETURN> to continue. Topic? show Display information from the operational data base. More HELP available for: PORTS SERVICES SESSIONS SHOW Subtopic? services Display service information from the operational database. SHOW SERVICES [services] [info] “Services” is ALL (the default), LOCAL, or a service

name. The service name may contain a single wildcard "*" symbol. All services matching the given name will be displayed.

“Info” is the type of information: CHARACTERISTICS, STATUS, or SUMMARY (the default).

SHOW Subtopic? ^Z TS3395>

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Related Commands

Use the HELP command to obtain information about other terminal server commands.

HELP

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LAT CONNECT

LAT CONNECT Establish a session with a LAT service

The LAT CONNECT command establishes a session with a LAT service. Use the SHOW SERVICES or SHOW NODES commands to obtain a list of LAT service names on the network.

Notes

Some networks may include a LAT service and a Telnet domain with the same name. The LAT CONNECT command selects the LAT service rather than the Telnet domain if you include only the name in the command line. If you enter the LAT CONNECT command without a service name, the terminal server searches for a predefined preferred LAT service. Preferred services are defined by the network manager, but you can check to see if a preferred service has been defined for your port with the SHOW|LIST PORTS CHARACTERISTICS command.

LAT services can exist at more than one LAT service node, or terminal server port. The node-name and port-name variables allow you to specify a service node and port when this is the case. If a LAT service exists at more than one service node or port and you do not specify one in the LAT CONNECT command, the terminal server makes a connection based on which node has the highest rating. This rating indicates the ability of the node or port to support additional connections.

Syntax

Abbreviation

Some LAT services may require that you supply a password before you can use them. If a LAT service requires a password, the terminal server prompts you for it after you enter the LAT CONNECT command. Check with the network manager if you have questions about the password for a LAT service. See the Examples section of this command description for an example of a LAT service with password protection.

LAT CONNECT [[SERVICE] [DESTINATION

LAT C [SERV] [NOD] [DEST]

port-name

service-name

]

] [NODE

node-name

]

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LAT CONNECT

Where Means

SERVICE Establish a session with the LAT service in the service-name variable. This keyword is

optional.

service-name Establish a session with the LAT service you specify in this variable. A service name

can consist of 1 through 16 characters.

NODE Establish a session with the device, or node, on the LAN that you specify in the node-

name variable. Use this keyword when the LAT service you specified in the servicename variable is offered at more than one node, and you want to specify the node.

node-name Establish a session with the LAT service at the node you specify in this variable. A

node name can consist of 1 through 16 ASCII characters.

DESTINATION Establish a session with a device connected to the port you specify in the port-name

variable. Use this keyword when the LAT service you specified in the service-name variable is offered on a device connected to a port on another terminal server, and you want to specify that port.

port-name Establish a session with the LAT service at the device connected to the port you specify

in this variable. A port name can consist of 1 through 16 ASCII characters. The default name for a port on a Model 3395/3395A Terminal Server has the form PORT_x, where x is the number of the physical terminal server port (1 through 16).

Examples

1. This command uses the LAT service named FINANCEVAX, which requires a

password. The password does not appear on the screen when the user enters it.

TS3395> lat connect financevax Password> TS3395 -010- Session 1 to FINANCEVAX established

xxxxx

Welcome To FINANCEVAX Please log on.

2. This command uses the LAT service name ACCOUNTSVAX, which exists on the

LAT node named VAX1.

TS3395> lat connect accountsvax node vax1 TS3395 -010- Session 4 to ACCOUNTSVAX established

Welcome to ACCOUNTSVAX Username:

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LAT CONNECT

3. This command uses the LAT service name LASER, which exists on terminal

server port 2 on the node named VAX1.

TS3395> lat connect lasernode vax1 destination port_2 TS3395 -010- Session 5 to LASER established

You have reached LASER Username:

4. This command does not use a service name. In the absence of this information,

the command interface searches for a predefined LAT preferred service. In this example, the preferred service is a LAT host named ACCOUNTSHOST.

TS3395> lat connect

This is ACCOUNTSHOST Please enter your username:

If the preferred service had not been defined, the message Preferred service has not been defined would have appeared on the screen. If this happens to you, see your network

manager, or enter a LAT service name with the LAT CONNECT command.

Related Commands

These commands provide functions that are useful with or similar to the LAT CONNECT command:

Command Function

SHOW DESTINATIONS Displays a list of all LAT services and Telnet destinations

on the network. SHOW NODES Displays a list of LAT service nodes on the network. SHOW SERVICES Displays a list of available LAT services on the network. CONNECT Establishes a session with a LAT service or a Telnet

destination. DISCONNECT Terminates a session between your port and a LAT service or

a Telnet destination.

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LOCK Temporarily disable access to a terminal server port

The LOCK command disables access to a terminal server port without terminating active sessions or logging out the port. The interface prompts you for a password before it locks the port. You use this password to “unlock” the port when you want to regain access to it.

Notes

Locking your port prevents other users from establishing sessions and gaining access to network resources through it if you are away. If you are at a privileged port, locking your port prevents other users from entering commands that are not available through Secure ports.

If you forget the unlock password, a user at a Privileged port must log out your port before you can use it again, although this terminates any active sessions.

The SERVER LOCK characteristic must be enabled to use the LOCK command. See the network manager if you cannot use this command.

Syntax

LOCK

Abbreviation

LOC

Example

TS3395> lock Lock Password>

When you enter the LOCK command, the interface prompts you for a Lock Password. Choose a password that you can remember, because you will use it later to unlock the port. The password do not appear on the screen. After the you enter the Lock Password, the interface prompts you to enter it again, to verify its contents.

Verification>

After the interface verifies the password, it displays a message indicating that the port is locked, and the Unlock Password prompt:

TS3395 - 019 - Port 6 locked Unlock Password>

Enter the Lock Password at the Unlock Password> prompt to regain access to the port.

Related Commands

When a port is locked, you cannot enter commands.

xxxxx

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LOGOUT PORT

LOGOUT PORT Log out of the terminal server port

The LOGOUT PORT command logs you out of the terminal server port, and terminates any active sessions.

Notes

Users at Secure ports can only log out of their own port. UNIX alias: QUIT [

Syntax

LOGOUT [PORT] [

Abbreviation

LOG [PO]

Where Means

port-list Log out of the port in this variable. Users at Secure ports can only specify their own

port number. This variable is optional. You can simply enter LOGOUT to log out of your port.

Example

TS3395> logout TS3395 -20- Logged out port 12 on server X003E8C at 13 March 1991

11:15:23

The logout message on your terminal server may be different. It usually includes the port number and the date as well as the name of the terminal server.

Related Commands

Use the LOGOUT command when you are finished using the terminal server.

port-list

]

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RESUME Reopen an active session

The RESUME command reopens a session that you specify in the command line, or the current session. Use the SHOW SESSIONS command to obtain a list of active sessions and their session numbers.

Notes

If you enter the RESUME command without specifying a session, the terminal server reopens the current session. If you enter the RESUME command within a Multisessions window, the terminal server reopens the current session established in that window. To reopen a session that you established in another window, you must enter a session number.

When you reopen a session, you need to press the return key once or twice to obtain the local operating system prompt.

RESUME

UNIX alias: FG

session-number domain-name internet-address

Syntax

RESUME [[SESSION]

name|internet-address

Abbreviation

R [SES]

Where Means

session- number Reopen the session you specify in this variable.

service- name Reopen a session at the LAT service you specify in this variable. domain- name Reopen a session with the Telnet domain you specify in this name variable. A domain

name may contain up to four segments, each separated by a period.

internet- address Reopen a session with the Telnet host or terminal server at the Internet address you

specify in this variable. Internet addresses consist of four numbers, separated by periods.

session number|service-name|domain-

]

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RESUME

Examples

1. This command reopens a session using a session number.

TS3395> resume session 3

2. This command reopens a session using a LAT service name.

TS3395> resume financevax

3. This command reopens a session using an Internet address.

TS3395> resume 140.178.65.119

Related Commands

These commands provide functions that are useful with or similar to the RESUME command:

Command Function

SHOW SESSIONS Displays a list of active sessions and their session numbers. FORWARDS Reopens the next higher-numbered session. BACKWARDS Reopens the next lower-numbered session.

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RLOGIN Log on to a host through the terminal server command interface

The RLOGIN command allows you to log on to a host through the terminal server. To do this, the terminal server passes a username for the remote host or a username for a remote terminal server port from the RLOGIN command line.

Notes

A network manager can implement the RLOGIN function on a host in different ways. Some implementations allow you to specify a username with the RLOGIN command and bypass the login routine on the host. Other implementations may function differently. Check with the network manager if you have questions about which keywords and variables to enter with the RLOGIN command.

The terminal server may take a few seconds to establish a Telnet connection to a domain name after it has been initialized. During this time, the server is attempting to locate the Domain Name Server, look up the Internet address for the domain name, and then make the connection. Subsequent attempts to connect to that Telnet host occur without delay, because the terminal server has a record of the Telnet address for that domain name.

Syntax

RLOGIN

domain-name

[[USERNAME] “

internet-address

NONE

username”

[[USERNAME] “

username

RLOGIN

]

"“

Abbreviation

RL [U]

Where Means

domain-name Establish a session with the Telnet host you specify in this variable. Domain names

may contain up to four segments, separated by a period.

internet address Establish a session with the Telnet host at the Internet address you specify in this

variable. An Internet address consists of four numbers, separated by a period.

“username” Pass the character string that you specify in this variable to the remote host as a logon

name, or username. Enclose the username in quotes.

NONE Establish a session with a predefined preferred Telnet destination. Preferred destinations

are defined by the network manager.

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RLOGIN

Examples

1. This command has no host username for the host UNIXSUN. The terminal server

uses the port username to log on to the host.

TS3395> rlogin unixsun TS3395 -010- Session 1 to UNIXSUN established $

The shell prompt on UNIXSUN indicates that the RLOGIN request was successful. The response you see may be different.

2. This command uses the host name UNIXSUN and the username Johnson.

TS3395> rlogin unixsun “johnson” TS3395 -010- Session 2 to UNIXSUN established $

The shell prompt on UNIXSUN indicates that the RLOGIN attempt was successful.

3. This command uses the NONE keyword to connect to a preferred service. The

terminal server passes the username of the terminal server port to the remote host.

TS3395> rlogin none TS3395 -010- Session 3 to UNIXSUN established $

The shell prompt on the remote host indicates that the RLOGIN attempt was successful.

Related Commands

These commands provide functions that are useful with or similar to the RLOGIN command:

Command Function

CONNECT Establishes a session with a Telnet destination, including a

UNIX host, or a LAT service.

TELNET CONNECT Establishes a session with a Telnet destination, including a

UNIX host.

SHOW DOMAIN Displays a list of learned or static domain names.

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SCRIPT Execute a script file

The SCRIPT command locates a script file and executes the commands in the script file.

Notes

Script files reside on a host system and contain a collection of Model 3395/3395A Terminal Server commands. You or the network manager can create these scripts with the host's text editor if you have the appropriate privileges on the host. You can execute a script file with the SCRIPT command, or the network manager can specify that the terminal server execute a script automatically when you log on to a port.

Once you execute a script, you cannot stop it. The session switching characters and the <Break> key do not function while a script is executing.

Syntax

SCRIPT “/

Abbreviation

None

Where Means

pathname/script-name

SCRIPT

”

“/pathname/ Execute the script file you specify in the script-name portion of the script-name” variable at the location you specify in the pathname portion of the variable. Include

the complete pathname to the file, and precede each directory name or filename with a backslash (/). The pathname/script-name combination must not exceed 64 characters. Enclose this variable in quotes.

Some host operating systems, including most UNIX implementations, are case sensitive. These operating systems interpret "SCRIPTNAME" and "scriptname" as different names because one is in upper-case letters and one is in lower-case letters. Be sure to enter the exact letters when you specify a directory name or a filename. Otherwise, the host operating system may not recognize it.

Example

This command executes a script called loginsetup in the directory /Scripts/Chris.

TS3395> script “/scripts/chris/loginsetup” Searching for script file. Please wait. . .

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SCRIPT

The terminal server's response to this command depends on the contents of the script file. At some ports, the commands in the script appear on the screen as the terminal server executes them. If the file contains a command such as CONNECT or RLOGIN, the user might see the logon banner of a remote host. The script could contain commands such as SET PORT TELNET TN3270 DEVICE to specify the type of terminal emulation to run during a TN3270 session, or SET SESSION to change the data transparency mode of a session. Unlike the CONNECT or RLOGIN commands, these commands would not necessarily cause any visible response from the terminal server.

If the terminal server cannot find the script file, or you do not have access to the script file, an error message appears at your terminal. A message such as “Temporary resource conflict - Please try again” may appear if many other users attempt to execute the script file at the same time as you do. If this message appears, wait a few minutes and then try again.

Related Commands

These commands provide information that is useful with the SCRIPT command:

Command Function

SHOW PORT ALTERNATE CHARACTERISTICS

SHOW PORT STATUS Displays the name of the host which contains the

Displays the PORT SCRIPT LOGIN characteristic.

script file that was last executed a this port.

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SET PORT Change port characteristics

The SET PORT command changes port characteristics in the terminal server's operational database. These changes take effect immediately, but remain in effect only until you log off the port or until the network manager initializes the terminal server.

Notes

Users at Secure ports can set some characteristics of their own ports, including all those listed here. Users at Privileged ports can define and set these and other characteristics, as well as the characteristics of other ports. See Commands Reference for the Model 3395/3395A Terminal Server for information about the characteristics of the DEFINE|SET PORT commands that are accessible at Privileged and Nonprivileged ports.

Many of the port characteristics you can set with these commands assign session management functions, such as local switch or forward switch, to the characters you specify. Chapter 2 explains more about these characters. Before you attempt to assign a function to a character, check the current settings, if any, for the characters at your port. Use the SHOW PORT CHARACTERISTICS command to display the settings of the session switching characters, the SHOW PORT ALTERNATE CHARACTERISTICS command to display the settings of the editing control characters, and the SHOW PORT TELNET CHARACTERISTICS command to display the settings of Telnet session management characters.

SET PORT

* An asterisk next to a setting indicates that it is the default setting for a port characteristic.

Syntax

SET PORT [ ...[

characteristic setting

Where Means

port-list Set characteristics for the ports you specify in this variable. Because the default value is the

issuing port, you can omit the port number.

Abbreviation

SE PO

The following is a summary of the available characteristics. A detailed description of each follows on the page after the summary.

port-list] [characteristic setting

] [

characteristic setting

]

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SET PORT

Characteristics

[AUTOPROMPT]

[BACKWARD SWITCH]

[FORWARD SWITCH]

[LOCAL SWITCH]

Setting Description

[ENABLED]* [DISABLED]

[character] [NONE]*

Initiate a logon sequence when you establish a session between your port PROMPT and a LAT service node. The LAT service node must also support this characteristic.

Reopen the next lower-numbered session during the current session, without returning to the Model 3395/3395A command interface when you enter this character or control character sequence. If NONE, do not enable a backward switch character at this port. Use this keyword to disable a previously defined backward switch character.

Reopen the next higher-numbered session during the current session, without returning to the Model 3395/3395A command interface when you enter this character or control character sequence. If NONE, do not enable a forward switch character at this port. Use this keyword to disable a previously defined forward switch character.

Suspend the current session and recall the terminal server local command mode when you enter this character or control character character sequence. You must set a local switch character to suspend active sessions if your terminal does not have a <Break> key. If NONE, do not enable a local switch character at this port. Use this keyword to disable a previously defined local switch character.

[PAUSE]

[RESOLVE SERVICE]

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[ENABLED] [DISABLED]*

[ANY]* [LAT] [TELNET]

Pause the screen after displaying 24 lines of information from a SHOW|LIST command. When enabled, the pause continues until you press the <Return> key, and then the display scrolls the next 24 lines. When disabled, the display continuously scrolls all information.

Determine how the terminal server should interpret a LAN destination name in these commands: CONNECT, TELNET CONNECT, LAT CONNECT. These are valid RESOLVE SERVICE keywords:

LAT Interpret the name as a LAT service. TELNET

Interpret the name as a Telnet domain name or an Internet address.

ANY Interpret the name as a LAT service

first, then as a Telnet destination if no LAT service exists with that name.

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SET PORT

[TELNET ABORT OUTPUT]]

[TELNET ATTENTION]

[character] [NONE]*

Stop sending output to a terminal during a Telnet session when you use this character or control character sequence. Use of this character does not terminate the program that is producing the output; only the display of the output. If NONE, do not enable a Telnet abort output character at this port. Use this keyword to disable a previously defined Telnet abort output character.

Suspend the current program and return to the operating system command prompt during a Telnet session, when you use this character or control character sequence. If you have established the Telnet session through another Model 3395/3395A Terminal Server port, the remote terminal server port passes a break sequence to the Telnet host when you use this character. The break sequence suspends the current program and returns the operating system prompt. If NONE, do not enable a Telnet attention character at this port. Use this keyword to disable a previously defined Telnet attention character.

[TELNET ERASE CHARACTER]

[TELNET ERASE LINE]

[TELNET INTERRUPT]

[character] [NONE]*

Delete the character to the left of the cursor during a Telnet session, when you use this character or control character sequence. If NONE, do not enable a Telnet erase character at this port. Use this keyword to disable a previously defined Telnet erase character character.

Delete all characters in the current line, backwards from the cursor position to a prompt or a carriage return/linefeed character, in a Telnet session, when you use this character or control character sequence. If NONE, do not enable a Telnet erase line character at this port. Use this keyword to disable a previously defined Telnet erase line character.

Suspend, interrupt, abort, or terminate a user process during a Telnet session when you use this character or control character sequence. If NONE, specifies no Telnet interrupt character at this port. Use this keyword to disable a previously defined Telnet erase line character.

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SET PORT

[TELNET NEWLINE]

[TELNET NEWLINE FILTERING]

[character] [NONE]*

[NONE]* [CR] [NULL] [LINEFEED]

Determine which characters the terminal server transmits to a Telnet host when you press the <Return> key on your terminal.

NULL*

Transmit a Carriage Return and a Null character to a Telnet host when you press the <Return> key.

LINEFEED

Transmit a Carriage Return character and a Linefeed character to a Telnet host when you press the <Return> key.

NOTHING

Transmit only a Carriage Return character to a Telnet host when you press the <Return> key.

Determine how the terminal server interprets Telnet New Line sequences that come from the network and are bound for your terminal. These are the possible types of Telnet newline filtering:

NONE*

Do not translate Telnet new line sequences.

[TELNET QUERY]

[character] [NONE]*

CR Translate Telnet new line sequences, such

as CR/NULL or CR/LF, to a carriage return (CR).

NULL Translate Telnet new line sequences, such

as CR/NULL or CR/LF, to a carriage return and a null (CR/NULL).

LINEFEED

Translate Telnet new line sequences, such as CR/NULL or CR/LF, to a carriage return and a linefeed (CR/LF).

Prompt a Telnet host to send a signal to the terminal that it is still up and running, during a Telnet session, when you use this character or control character sequence. (Use this character if you suspected that a Telnet process has “crashed” or “hung.”) If NONE, do not enable a Telnet query character at this port. Use this keyword to disable a previously defined Telnet query character.

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SET PORT

[TELNET SYNCHRONIZE]

[TYPE]

[character] [NONE]*

[ANSI] [HARDCOPY] [SOFTCOPY]*

Regain control of a Telnet process that you suspect is no longer functioning properly. When you use this character or control character sequence. Most Telnet hosts will return to the operating system command prompt, although this is not always the case. If NONE, do not enable a Telnet synchronize character at this port. Use this keyword to disable a previously defined Telnet synchronize character.

Change the characteristic that affects how the terminal server sends data to the terminal and how the terminal displays that data. For terminals that emulate several terminal types, this characteristic should match the actual terminal setting. This characteristic only affects the terminal when it runs the Model 3395/3395A command processor.

ANSI Produce output for a video-display terminal

and support American Institute of Standards (ANSI) escape sequences. Generally, this characteristics applies to terminals that support the clear screen function and special cursor control functions, but not line drawing. Typical ANSI terminals are DEC VT100, VT200, and VT300 terminals, or terminals compatible with these types.

[VERIFICATION]

[ENABLED]* [DISABLED]

HARDCOPY

Produce output for a printing terminal or a nonvideo-display terminal, or emulate a printing terminal. Most hardcopy terminal types produce output on paper. When you delete characters on a hardcopy terminal, they appear on the paper between two backslash characters (\ \).

SOFTCOPY*

Produce output for a video-display terminal that does not support ANSI escape sequences. Softcopy terminal types echo character deletions when you use the <Delete> key, but do not support the clear screen function, special cursor control functions, or the line drawing function.

Display status messages on the terminal screen when you establish a session, disconnect from a session, or switch a session.

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SET PORT

Examples

None of these examples specify a port number since the commands apply to the issuing port.

1. This command to assigns a backward switch character.

In this example, a user sets the backward switch character to <Ctrl><K>. (When you press the <Ctrl> key at the TS3395> prompt, the terminal displays the ^ character.)

TS3395> set port backward switch ^p TS3395>

2. This command enables the pause feature.

TS3395> set port pause enabled TS3395>

3. This command changes the RESOLVE SERVICE characteristic. A user sets the

RESOLVE SERVICE characteristic to LAT. This causes the terminal server to interpret LAN destinations in CONNECT commands from this port as LAT services.

TS3395> set port resolve service lat TS3395>

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Related Commands

These commands provide functions that are useful with the SET PORT command:

Command Function

SET PORT

SHOW PORT CHARACTERISTICS

SHOW PORT ALTERNATE CHARACTERISTICS

SHOW PORT TELNET CHARACTERISTICS

Displays the current values for general port characteristics, including the session management control characters

Displays the current values for the Pause, Resolve Service, Idle Timeout, DTR wait, Typeahead size, Slip, and Line Editing control characters

Displays the current values for port characteristics related to Telnet sessions, including the TN3270 characteristic and Telnet session management control characters.

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SET SESSION

SET SESSION Change the data transparency mode of the current session

The SET SESSION command changes the way a port interprets control characters during a session.

Notes

The terminal server supports four data transparency modes: interactive, passall, pasthru, and transparent. The SHOW SESSIONS display includes the data transparency mode of current sessions in the Service Mode field. Interactive mode is the typical mode for most sessions. If you want to transfer files between a PC and a host, however, you need to set the transparency mode at your port to PASSALL. See Chapter 6 for more information about PC file transfers.

Syntax

SET SESSION [INTERACTIVE]

[PASSALL] [PASTHRU] [TRANSPARENT]

Abbreviation

SE SES [I]

[PASS] [PAST] [TRANS]

Where Means

INTERACTIVE Enable all control characters. These include session switching characters,

Telnet session management characters, terminal server messages, and XON|OFF flow control characters. INTERACTIVE is the typical setting for most sessions.

PASSALL Disable all control characters. When the data transparency of a session is set

to PASSALL, control characters from the terminal server are sent to the host or other device as data, rather than control signals. This mode is useful for transferring data files that contain control characters, such as binary program files, without interference from the terminal server.

PASTHRU Disable all control characters except the XON|OFF flow control characters.

This mode is useful for transferring ASCII files, such as a file that you want to print on a printer connected to another terminal server.

TRANSPARENT Disable all session switching characters, Telnet session management

characters, and XON|OFF flow control characters. During a Telnet session, ignore Telnet option messages received from a remotely initiated session and do not transmit any Telnet option messages from a locally initiated session. During a LAT session, signal the LAT service that the terminal server is set to PASSALL, but behave locally as if the terminal server is set to PASTHRU.

Example

This command sets the data transparency mode of the port to PASSALL.

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SET SESSION

TS3395> set session passall TS3395>

Related Commands

These commands provide information that is useful with the SET SESSION command:

Command Function

SHOW SESSIONS Displays the data transparency mode of the current session. SHOW|LIST PORT Displays the default session mode for all sessions.

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SHOW DESTINATIONS

SHOW DESTINATIONS Display a list of LAT services and Telnet destinations

The SHOW DESTINATIONS command displays a current list of LAT service names and Telnet destinations on the network.

Notes

The network manager can limit access to destinations on the network, so you might not be able to reach all destinations in the display. Also, some ports may not accept commands such as SHOW DESTINATIONS that display network resources. Check with the network manager if you have questions about your access to a network destination or the availability of display commands at your port.

Syntax

SHOW DESTINATIONS [

Abbreviation

SH DES

Where Means

name Display information about the destinations you specify in this variable. Use this

variable to view a limited number of destinations, or one destination, rather than a complete list. LAT service names consist of 1 through 16 characters. Telnet destination names may contain up to four segments, each separated with period.

name

]

Example

LattisNet V5.0 Rom 430001 HW 00.01.00 Lat Protocol V5.1 Uptime: 1 19:27:53

FINANCESUN.COM UNIX Host at 140.179.20.1 ACCOUNTSVAX VAX/VMS LAT SERVICE PAYROLLHOST IBM Host LASER2 Department Laser Printer

You can use the asterisk character (*) as a template to select a subset of names with this command. For example, if you entered SHOW DESTINATIONS AB*, the terminal server would display all available names that began with AB. If you entered SHOW DESTINATIONS A*BC, the system would display names that began with A and ended with BC.

To display information about all the destinations on the LAN, enter the SHOW DESTINATIONS command without variables.

TS3395> show destinations

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SHOW DESTINATIONS

Field Means

LattisNet Vx.y The Model 3395/3395A product type and the version of the terminal server software,

where x.y is the major and minor software release level. Rom xxxxxx The version of ROM software on the terminal server. HW xx The version of terminal server hardware, where xx is the version of cards. Lat Protocol Vx.y The version of LAT protocol running on the terminal server, where Vx.y indicates the

major and minor protocol release level. Uptime The amount of time that the terminal server has been running since it was last

initialized in this form: days hours:minutes:seconds. Destination The names of the LAT and Telnet destinations on the network. Description An optional text string describing the destination.

Related Commands

The SHOW DESTINATIONS command provides information that is useful with these

commands:

Command Function

CONNECT Establishes a session with a LAT service or Telnet

destination. TELNET CONNECT Establishes a session with a Telnet destination. LAT CONNECT Establishes a session with a LAT service. SHOW NODES Displays a list of LAT service nodes. SHOW DOMAIN Displays a list of learned or static Telnet domains. SHOW SERVICES Displays a list of available LAT services. SET PORT PAUSE ENABLED Pauses the display after 24 lines of information appear on

the screen. The display continues to scroll information

when you press the <Return> key.

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SHOW|LIST DOMAIN

SHOW|LIST DOMAIN Display a list of Telnet domain names

The SHOW DOMAIN command displays a list of Telnet domains and their Internet addresses from the operational database of the terminal server. The LIST DOMAIN command displays information about Telnet domains in the permanent database of the terminal server.

Notes

The network manager can limit access to domains in the network, so you may not be able to reach all domains in the display. Also, some ports may not accept commands such as SHOW|LIST DOMAIN that display network resources. Check with the network manager if you have questions about your access to a domain.

Syntax

LIST DOMAIN [

domain-name

][ALL]

SHOW DOMAIN [

Abbreviation

L DO ALL SH DO ALL

LEARNED LOCAL

Where Means

domain-name Display information about the domain you specify in this variable. Domain names may

contain up to four segments, each separated with period. You can use the asterisk character (*) as a template character to select a subset of names

with this command. For example, if you entered SHOW DOMAIN AB*, the terminal server would display all available names that began with AB. If you entered SHOW DOMAIN A*BC, the system would display names that began with A and ended with BC.

ALL Display information about all domains on the network. This is the default keyword for

this command.

LEARNED Display information about domains from the primary or secondary domain name server.

domain-name

][ALL]

[LEARNED] [LOCAL]

LOCAL Display information about local domains.

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SHOW|LIST DOMAIN

Example

TS3395> show domain

Internet Domain 10 May 1993 14:09:51

Entry Address TTL SRC Name

2 140.179.139.254 47 Pri FINANCE.SUN.COM 1 140.179.20.1 49 Pri MINX.SYNOPTICS.COM 3 140.179.20.1 49 Pri XEBRA.SYNOPTICS.COM

Field Means

Entry A number that the terminal server assigned to the domain name. Internet Address The Internet address of the node in the domain. TTL The number of hours that the terminal server retains information from the primary or

secondary domain name server about the domain name in this entry line.

SRC Name The source of the information about the domain name in this entry line. The possible

sources are Local, Primary, and Secondary.

Domain Name The names of the domains available on the network.

Related Commands

The SHOW|LIST DOMAIN commands provide information that is useful with these commands:

Command Function

CONNECT Establishes a session with a Telnet destination or LAT

service. TELNET CONNECT Establishes a session with a Telnet destination. RLOGIN Establishes a session with a host if the host has been

configured for an RLOGIN implementation. SET PORT PAUSE ENABLED Pauses the display after 24 lines of information appear on

the screen. The display continues to scroll information

when you press the <Return> key.

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SHOW NODES

SHOW NODES Display a list of LAT service nodes on the network

The SHOW NODES command displays a list of LAT service nodes on the network, and information about those nodes.

Notes

The network manager can limit access to nodes on the network, so you may not be able to reach every node in the display. Also, some ports may not accept commands such as SHOW NODES that display network resources. Check with the network manager if you have questions about your access to a network destination or the availability of display commands at your port.

Syntax

SHOW NODES [

Abbreviation

SH NOD

node-name

[ALL] [COUNTERS]

] [COUNTERS] [STATUS] [SUMMARY]

[STATUS] [SUMMARY]

Where Means

node-name Display information about the node you specify in this variable. ALL Display information about all nodes on the network. COUNTERS Display statistics about activity on the node you specify in the node-name variable or

all nodes.

STATUS Display status information about the node you specify in the node-name variable or all

nodes. This information includes the availability of the node, the Ethernet address, the group codes and the services available at the node.

SUMMARY Display a one-line summary of information for the node you specify in the node-name

variable or all nodes. This is the default display for this command.

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SHOW NODES

Examples

SHOW NODES STATUS

1. TS3395> show nodes status

Node: FINANCEVAX Address: AA-00-04-00-D0-04 LAT Protocol: V5.1 Data Link Frame Size: 1500

Identification: FINANCEVAX - The Corporate MicroVAX II

Node Groups: 0

Service Name Status Rating Identification

XANADU 3 Connected 71 FinanceVAX - The Corporate MicroVAX II

Field Means

Node: node-name The name of the LAT service node. LAT Protocol Vx.y The version number (x) and the update level (y) of the LAT protocol running on the node. Address The Ethernet address of the node. Data Link Frame

The maximum size of a Data Link Frame that the node can use to receive messages.

Size Identification The text string that identifies the node. Node Groups The group codes enabled for this node. Service Name The entries in this column are the names of LAT services that this node offers to network

users.

Status The entries in this column indicate the availability of the LAT services that this node offers

to network users. These entries can be the following: Available Users can establish sessions with this service. n Connected Users can establish sessions with the service, and n sessions are

currently active at this service.

Unknown Although users could reach the service in the past, they may no

longer be able to reach it.

Unavailable Users cannot reach the nodes that offer this service.

Rating The value that the node assigns to the service, which indicates the relative capacity of the

service to accept new connections. A high rating indicates that a service is more able to accept connections. The range of values for this rating is 0 through 255.

Identification The text string that identifies this service.

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SHOW NODES

SHOW NODES SUMMARY

2. TS3395> show nodes summary

Node Name Status Identification

FINANCEVAX 3 Connected FinanceVAX - The Corporate MicroVAX II

Field Means

Node Name The name of the LAT service node. Status The entries in this column indicate the availability of the node to users on

the network. The different states of availability include the following:

n Connected Users can reach the node, and n sessions are currently active at

the node.

Reachable Users can reach the node, and no sessions are currently active

at the node.

Requesting Users cannot reach the node, but the node is attempting to

make a remote connection to a service that the local terminal server offers.

Unknown Although users could reach the node in the past, they may no

longer be able to reach it.

Unavailable Users cannot reach the node.

Identification The text string that identifies the node.

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SHOW NODES

SHOW NODES COUNTERS

3. TS3395> show nodes counters

Node: FINANCEVAX 21 May 1993 10:26:52

Seconds Since Zeroed: 508882 Multiple Node Addresses: 0 Messages Received: 147913 Duplicates Received: 0 Messages Transmitted: 141373 Messages Re-transmitted: 7 Slots Received: 99696 Illegal Messages Received: 0 Slots Transmitted: 101103 Illegal Slots Received: 0 Bytes Received: 1981123 Solicitations Accepted: 0 Bytes Transmitted: 85032 Solicitations Rejected: 0

Field Means

Node The name of the LAT service node. Seconds Since Zeroed The number of seconds since the counters were reset to zero. Messages Received The number of LAT virtual circuit messages that the node has sent to the

terminal server.

Messages Transmitted The number of LAT virtual circuit messages that the server has sent to the

node.

Slots Received The number of slots, or message segments during a session, that the node sent

to the terminal server.

Slots Transmitted The number of slots, or message segments during a session, that the terminal

server sent to the node.

Bytes Received The number of bytes contained in datagrams that the node has sent to the

terminal server, excluding Ethernet header and CRC data.

Bytes Transmitted The number of bytes contained in datagrams that the terminal server has sent

to the node, excluding Ethernet header and CRC data.

Multiple Node Addresses The number of times that the node broadcast an announcement with a physical

address that was different from the physical address given in a previous

announcement. Duplicates Received The number of duplicate messages that the server received from the node. Messages Retransmitted The number of messages that the server retransmitted to the node.

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SHOW NODES

Field Means

Illegal Message Received

Illegal Slots Received The number of illegally formatted slots or message segments for a particular

Solicitations Accepted The number of connection requests that the terminal server has accepted from

Solicitations Rejected The number of connection requests from the node that the terminal server

Related Commands

Command Function

CONNECT Establishes a session with a LAT service at a specific node.

LAT CONNECT Establishes a session with a LAT service at a specific node

SHOW SERVICES Displays a list of LAT services on the network.

The number of illegally formatted messages that the server received from the node.

session, that the terminal server has received from the node.

the node. This number includes both requests that the server placed in a queue and requests that the server accepted immediately.

rejected.

The SHOW NODES command provides information that is useful with these commands:

you specify on the command line.

SET PORT PAUSE ENABLED Pause the display after 24 lines of information appear on the

screen. The display continues to scroll information when

you press the <Return> key.

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SHOW|LIST PORT

SHOW|LIST PORT Display information about the characteristics and counters of your port

The SHOW PORTS command displays information about the operational database parameters of your terminal server port. The LIST PORTS command displays information about permanent database parameters of your terminal server port.

UNIX alias for SHOW PORT STATUS: STATUS

Notes

Users at Secure ports can only display information about their own ports. UNIX alias: STATUS [port-list.]

Syntax

SHOW PORT [port-list] [CHARACTERISTICS] LIST [COUNTERS]

[STATUS] [SUMMARY] [ALTERNATE CHARACTERISTICS] [TELNET CHARACTERISTICS]

SHOW PORT [KEYMAP]

Abbreviation

SH PO

Where Means

port-list Display information about the port you specify in this variable. Secure users can only specify

their own port numbers.

CHARACT. Display the current values for general port characteristics, including the session

management control characters. This is the default display.

ALTERNATE Display the current settings for the PAUSE, RESOLVE SERVICE, IDLE CHARACT. TIMEOUT, DTRWAIT, TYPEAHEAD SIZE, SLIP ADDRESS, and line

editing characters.

TELNET Display the current values for port characteristics that are related to Telnet, including CHARACT. TN3270 characteristics and Telnet session management characters.

COUNTERS Display the values of port counters. STATUS Display information about the current session. SUMMARY Display a one-line status message that summarizes the access method, connection

status, and services available at this port.

KEYMAP Display the keymap for the device this terminal emulates during a TN3270 session, if a

keymap has been allocated for this individual port.

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SHOW|LIST PORT

Examples

While secure users cannot alter many of the characteristics in this display, the description includes information about all characteristics. Secure users can set the session switching characters shown in this display with the SET PORT command.

SHOW|LIST PORT CHARACTERISTICS

1. TS3395> show port characteristics

Port 12: Valerie 10 June 1993 13:49:27

Character Size: 8 Input Speed: 19200 Flow Control: XON Output Speed: 19200 Parity: None Modem Control: Disabled

Access: Local Local Switch: ^K Backwards Switch: None Name: PORT_12 Break: Local Session Limit: 4 Forwards Switch: None Type: Soft

Preferred Service: None

Authorized Groups: 0 (Current) Groups: 0

Enabled Characteristics:

Autobaud, Autoprompt, Broadcast, Input Flow Control, Line Editor, Loss Notification, Message Codes, Verification, Internet Connections

Field Means

Port n The number of the terminal server port. username The name you used to log on to this port

Character Size The size of individual characters, in bits, that pass through the serial connection

between the serial device, such as your terminal, and the terminal server port. The character size is either 7 or 8 bits.

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SHOW|LIST PORT

Flow Control The method that the serial interface uses to regulate the flow of data between this port

and the serial device that is connected to it, such as your terminal. The flow control method that appears in this field may be one of the following:

Method Means

CTS The port emulates RTS/CTS flow control with the DCD and DTR

modem control signals. These signals control data transfer between the port and the serial device connected to it.

DSR The port emulates DTR/DSR flow control with the DCD and DSR

modem control signals. These signals control data transfer between the port and the serial device connected to it.

XON The port uses XON|OFF flow control to control data transfer between

the port and the serial device connected to it.

Disabled The port does not use any flow control method.

Parity The method that the terminal server and the terminal use to check for single-bit errors

in characters that they send back and forth. This type of error checking is called parity checking because the terminal provides an extra bit, called a parity bit, to check the characters. This field displays the type of parity checking, if this checking exists:

Parity Means

Even The port and the terminal ensure that each character contains an even

number of 1's, including the parity bit.

Odd The port and the terminal ensure that each character contains an odd

number of 1's, including the parity bit.

None The port and the device do not check characters for parity.

Input Speed The rate that the terminal transmits data and the terminal server port processes that data.

This rate, in bits-per-second, can be any of these: 50, 75, 110, 134, 150, 300, 600, 1200, 1800, 2000, 2400, 4800, 9600, 19200, 38400.

Output Speed The rate that the terminal server port transmits data and the terminal processes the data.

This rate, in bits-per-second, can be any of these: 50, 75, 110, 134, 150, 300, 600, 1200, 1800, 2000, 2400, 4800, 9600, 19200, 38400.

Modem Control Whether or not your terminal can use modem control signals during data

communications. Modem control can be Enabled or Disabled.

Access The type of connections the terminal server allows at this port. Backward Switch

Shows the character that causes the terminal server to exit from the current session and connect to the next lower-numbered session, or None if this is undefined. Control characters are displayed as ^n (e.g., <Ctrl>/ is shown as ^B).

Break

Shows which action the port will take when the user presses the <Break> key. The possible values which will be shown are:

Action Means

Disabled Indicates that the terminal server does nothing when the user presses the

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SHOW|LIST PORT

<Break> key.

Local Indicates that the terminal server will return to the local command mode

when the user presses the <Break> key.

Remote Indicates that the terminal server sends the break to the connection partner

when the user presses the <Break> key.

Forward Switch Shows the character that causes the terminal server to exit from the current session and

connect to the next higher-numbered session, or None if this is undefined. Control characters are displayed as ^n (e.g., <Ctrl>/ is shown as ^B).

Local Switch Shows the character that causes the terminal server to exit from the current session and

return to the local command mode, or None if this is undefined. Control characters are displayed as ^n (e.g., <Ctrl>/ is shown as ^B).

Name Shows the server manager-defined or default name of the port. Session Limit The maximum number of simultaneous sessions you can establish at this port.

Type The type determines how your terminal produces output and how the terminal server

sends data to the port when the port is in local command mode. The different terminal types that can appear in this field are these:

Type Means

ANSI The terminal produces output on a video display and supports ANSI

escape sequences.

Hard The terminal produces output on paper, such as a printer. When you

delete characters with this type of terminal, the deleted characters are

echoed between backslash characters (//).

Soft The terminal produces output on a video display, but does not support

ANSI escape sequences.

Preferred Service The name of a LAT service or Telnet destination where the terminal server

automatically attempts to establish a session when you enter a connect command without a destination name.

Dedicated Service The name of a LAT service or Telnet destination where the terminal server service name automatically attempts to establish a session when you log on to the port.

Node: node name The name of the LAT service node which offers the preferred service. Destination: The name of the terminal server port which offers the preferred or

port-name dedicated service. Authorized Groups The names of the LAT service groups where this port can make connections.

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SHOW|LIST PORT

Current Groups The names of the LAT service groups where you have chosen to have access. This list

may be the same or a subset of the authorized group list.

Enabled The characteristics either you or the network manager have enabled with Characteristics the DEFINE|SET PORT commands. The characteristics that can appear

in this field include the following:

Characteristic Means

Autobaud The port determines the input port speed, parity, and character

size for the device connected to it, and automatically sets the appropriate port characteristics.

Autoconnect The port automatically connects to a dedicated service or a

preferred service when the user logs on to the port, or the port attempts to reconnect a session when a connection failure occurs.

Autodedicated The terminal server automatically logs on the port and

establishes a session between the port and a dedicated service when the terminal server is initialized or the port is logged out.

Autoprompt The terminal server automatically prompts the LAT service

node to run its logon routine when the port makes a connection to that node.

Broadcast The port can receive messages that are broadcast from other

ports on the terminal server.

Connectresume The CONNECT command resumes an existing session rather

than establishing a new session when you enter the command with a destination name where you already have a session established.

Dial back The dial-back feature is enabled at this port. This feature limits

remote to the terminal server to a specific list of users and phone numbers.

Dial up The port is connected to a dial-up line.

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SHOW|LIST PORT

Characteristic Means

DSRlogout The terminal server logs out the port when the serial interface

DSRWait The terminal server begins the login sequence at this port

Inactivity Logout The terminal server logs out the port after the period of time if

Input Flow Control This port uses flow control to regulate the flow of data from

Internet Connections The port can accept Internet addresses as well as domain names

Interrupts You can use the <Break> key or a local switch character to

Kerberos The Kerberos security system is enabled at this port. Limited View You cannot view destinations on the network with the

DCD signal is deasserted.

when the DSR signal is asserted.

you have not entered any commands at the port. The network manager specifies the amount of time with the SERVER INACTIVITY TIMER value.

the device connected to it.

in connect commands.

interrupt a session at a remote terminal server.

SHOW|LIST DESTINATIONS, NODES, or SERVICES

commands. Line Editor You can use editing characters at this port. Loss Notification The terminal “beeps” if you enter a command line that exceeds

132 characters. Message Codes The port displays the number associated with status or error

messages. Menu This port uses a menu-driven interface. Multisessions This port uses multisessions.

Noloss This port stores data in a buffer while waiting for a session to

be established, then sends the data to the connections partner

when the session is established. Output Flow Control This port uses flow control to regulate the flow of data to the

device connected to it. Password You must enter a password to log on to this port. Pause This port pauses when it sends data from display commands to

the terminal after it fills each screen. PPP The Point-to-Point Protocol is enabled at this port. Privileged Menu The port is privileged and uses the menu interface. (Not

visible to Secure users.)

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SHOW|LIST PORT

Characteristic Means

Queuing The port has a queue where it places LAT service connection

requests if the LAT service is busy when you attempt to make a connection to it.

Remote Certain PORT characteristics (of this port) can be changed by Modification a process running at a VMS host.

Security The security level of the port is Secure. Signal Check The terminal server allows connections to this port when the

DSR signal is deasserted or logs out this port when the DCD signal is deasserted.

SLIP The Internet SLIP protocol is enabled for this port, and the

port expects all data to be in SLIP packets.

Verification The port displays information messages when you connect,

disconnect, or switch a session.

Xremote The Xremote protocol is enabled at this port.

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SHOW|LIST PORT

SHOW|LIST PORT ALTERNATE CHARACTERISTICS

2. TS3395> show port alternate characteristics

Port 12: Becca 19 June 1993 09:18:47

Resolve Service: Any DTR wait: Disabled Idle Timeout: 0 Typeahead Size: 128 SLIP Address: 0.0.0.0 SLIP Mask: 0.0.0.0 Remote SLIP Addr: 0.0.0.0 Default Session Mode: Interactive TCP Window Size: 256 Prompt: TS3395 DCD Timeout: 2000 Dialback Timeout 20 Stop Bits 1 Script Login Disabled

Backspace Character: ^D Forwards Character: ^F Delete Beg Character: ^U Delete Line Character: ^X End of Line Character: ^E Begin Line Character: ^H Previous Line Character: ^B Next Line Character: ^N Quoting Character: ^V Insert Toggle Character: ^A Cancel Character: ^Z Redisplay Character: ^R

XDM Query Broadcast

XDM Host

TCP Keepalive Timer

Line Editor Characters

Field Means

Port n The number of the terminal server port. username The name you used to log on to this port, or the name the network manager assigned to

the port.

Resolve Service The method that the terminal server uses to interpret variables in connect commands

from this port. These are the possible values in this field:

Type Means

Any Interpret a variable as a LAT service name first, and if no LAT

service with that name exists, then interpret the variable as a

Telnet destination. LAT Interpret the variable as a LAT service name. Telnet Interpret the variable as a Telnet destination.

Idle Timeout The number of minutes the terminal server waits before it disconnects a session where

there is no activity, and which was established in a queued connection request.

SLIP Address The Internet address assigned to the server port. Remote The Internet address of the remote device.

SLIP ADDR

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SHOW|LIST PORT

Field Means

TCP Window The size, in bytes, of the TCP window that the port uses during a TCP/IP Sizesession.

DCD Timeout The period of time that the DCD signal can be deasserted before the terminal server

disconnects the port. This period of time can be between 0 and 10,000 milliseconds, in increments of 100 milliseconds).

Stop Bits The number of bits attached to the end of each character that the port sends to the

terminal. These bits signify the end of a character. The values that can appear in this field mean the following:

Value Means

1 One stop bit. 2 Two stop bits. 3 One and one half stop bits. 4 The terminal server assigns the number of stop bits based on the

port speed. This is the default value.

XDM Query Shows the method by which the server locates an XDM manager.

SPECIFIC Search for the host at the location in the domain-name or internet-

address variable, which is the XDM manager.

BROADCAST Search the network for an XDM manager using the Internet

broadcast address.

INDIRECT Search for the host at the location in the domain-name or internet-

address variable. This host provides a list of XDM managers on the network.

XDM Host Shows the name of the XDM manager currently in use. TCP Keepalive

Timer

Shows the number of minutes that the terminal server will wait for a response from the Telnet partner before terminating the session.

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SHOW|LIST PORT

DTR wait The conditions needed for the port to assert the DTR Modem control signal. These are

the possible values of this field:

DTR Signal Means

Disabled The port continuously asserts the DTR signal. Enabled The port asserts the DTR signal when you make a connection

to a device, or when the device connected to the port asserts an

RNG signal. FORCONNECTION The port asserts the DTR signal when you make a connection. FORRING The port asserts the DTR signal when the device connected to

the port asserts an RNG signal

Typeahead size The number of bytes, or characters, that the type-ahead buffer can hold before

transmitting these characters to the network.

SLIP Mask The Internet subnet mask that the terminal server uses when it forwards a packet over a

SLIP link.

Default The initial setting for the data-transparency mode for all sessions. Session Mode These are the possible values for this field:

Session Mode Means

Interactive The server initially enables all session switching characters,

Telnet session management characters, and XON|OFF flow

control for all sessions. The server does not negotiate the

Telnet Binary option. Pasthru The server initially interprets all session switching characters

and Telnet session management characters as data, but does use

XON|OFF flow control. The server attempts to negotiate the

Telnet binary option. Passall The server initially disables all session switching characters,

Telnet session management characters, and XON|OFF flow

control for all sessions. The server attempts to negotiate the

Telnet binary option. Transparent The server initially disables session switching characters,

Telnet session management characters, and XON|OFF flow

control. The server sets Telnet sessions to ignore Telnet

option messages it receives from a remotely initiated session

and does not try to send any Telnet option messages it receives

from the locally initiated session. For LAT sessions, the

server tells its partner it is Passall but acts locally as if it were

Pasthru.

Prompt The local command prompt that the port displays in command mode.

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SHOW|LIST PORT

Dial-back The number of seconds that the terminal server waits for a modem to respond to a Timeout dial-back signal.

Script Login The status of the Script Login characteristic at this port. The status can be one of the

following:

Required This port must find and execute a script file when a user logs

in to this port. If a script file does not exist, the terminal server logs out the port.

Enabled This port searches for a script file when a user logs in to this

port.

Disabled This port does not search for a script file when a user logs in

to this port.

Line Editing If line editing is enabled at this port, the SHOW PORT ALTERNATE Characters CHARACTERISTICS display includes the values for the line editing characters. If this

characteristic is disabled at this port, the display does not include this information.

Chapter 2 describes the functions of each line editing character.

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SHOW|LIST PORT

SHOW|LIST PORT TELNET CHARACTERISTICS

3. TS3395> show port telnet characteristics

Port 12: Sandy 18 Sept 1991 14:35:55

Abort Output Character: None Newline: CR/NULL Attention Character: ^W Newline Filtering None Default Port: 23 Query Character: None Echo Mode: Remote Remote Port: 3200 Erase Keystroke Character: None Synchronize Character: None Erase Line Character: ^K Transmit: Immediate Interrupt Character: None Binary Session Mode: PASTHRU Terminal Type None Tn3270 Device VT220-7 Tn3270 TranslationTable USENGLSH Tn3270 Printer port Any

Enabled Characteristics:

Tn3270 EOR

Field Means

Port n The number of the terminal server port. username The name you used to log on to this port, or the name the network manager assigned to

the port with the DEFINE or SET PORT USERNAME command.

Abort Output The character that terminates the display of output from a Telnet process when typed Character during a Telnet session. “None” appears in this field if no character exists.

Attention The character that invokes the operating system prompt on a remote host when typed Character during a Telnet session. “None” appears in this field if no character exists.

Default Port The default Telnet port number. Echo Mode This field indicates which partner in a Telnet session echoes the characteristics you

type.

Mode Means

Local The terminal server echoes the characters you type. Remote The Telnet host echoes the characters you type.

Erase Keystroke The character that deletes the character immediately to the left of the cursor when typed Character during a Telnet session. “None” appears in this field Character if no character exists.

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SHOW|LIST PORT

Field Means

Erase Line The character that deletes all data in the current line, backwards from the Character cursor position when typed during a Telnet session. “None” appears in this field if no

character exists.

Interrupt The character that interrupts, aborts, or terminates a user process when Character typed during a Telnet session. “None” appears in this field in no character exits.

Terminal The name of the terminal type that the terminal server sends to a Telnet type host while

negotiating a Telnet session.

TN3270 The language translation table used at this port during TN3270 sessions. Translation Table

Newline The characters that the terminal server transmits to a host during a Telnet session when you press

the <Return> key at this port. The possible values in this field are the following:

Setting Means

CR/NULL Transmit a Carriage Return and a Null character to the Telnet

host when you press the <Return> key.

CR/LF Transmit a Carriage Return and a Linefeed character to the

Telnet host when you press the <Return> key.

CR Transmit a Carriage Return character to the Telnet host when

you press the <Return> key.

Newline The method, if any, that the terminal server uses to translate Telnet Newline sequences Filtering coming from the network and bound for your port. The possible values in this field are

the following:

Filter Means

None Does not translate Newline sequences. CR Translate a CR or a CR/LF in the data stream to a CR (a

Carriage Return character).

CR/NULL Translate a CR/NULL or a CR to a CR/NULL (a Carriage

Return and a Null character).

CR/LF Translate a CR/NULL or a CR/LF in to a CR/LF (a Carriage

Return and a Linefeed character).

Query The character that produces some visible indication that a host is still up and running Character when typed during a Telnet session. “None” appears in this field in no character exits.

Remote Port The terminal server accepts remote connections from the Telnet port number in this

field.

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SHOW|LIST PORT

Field Means

Synchronize The character that regains control of a Telnet process when typed during a Telnet Character session. “None” appears in this field in no character exits.

Transmit The method that the terminal server uses to transmit characters that you enter from the

keyboard during a Telnet session.

Method Means

Buffered The server does not transmit characters until you enter a

Control character. Immediate The server sends each character as soon as possible after you

enter it. Idle Time value The maximum amount of time, expressed as a number of

characters, that the terminal server waits before it transmits the

data in the type-ahead buffer to the Telnet host.

Binary Shows the session mode (Passall or Pasthru) that will be used when the port Session Mode negotiates the Telnet binary mode, or Interactive if the port should not negotiate the

Telnet binary mode.

TN3270 Device Shows the device type used at this port during a TN3270 session. TN3270 Printer Shows which port or any ports that are available for local TN3270 screen ports

printing.

Enabled The characteristics enabled at this port. Characteristics

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SHOW|LIST PORT

SHOW|LIST PORT COUNTERS

4. TS3395> show port counters

The fields in the SHOW PORT COUNTERS display reflect the values of the counters since they were last reset to zero. Counters are reset to zero when the network manager initializes the terminal server, or when you or the network manager use the ZERO COUNTERS command.

The lower half of the display shows information about Serial Line Internet Protocol (SLIP) packets. These are packets the terminal server sends over a SLIP link.

See the network manager if you have questions about port counters.

Port 10: Steve 26 Sept 1991 14:10:57

Seconds Since Zeroed: 365155 Local Accesses: 4 Framing Errors: 0 Remote Accesses: 0 Parity Errors: 0 Idle Timeouts: 0 Overrun Errors: 0 Input Count: 1742 Output Count: 84377

SLIP Packets Serial Packets Received: 0 Network Packets Received: 0 Serial Packets Sent: 0 Network Packets Sent: 0 Serial Packets Discarded: 0 Network Packets Discarded: 0 Serial Packet Length Errors: 0 Serial Packet Checksum Errors: 0

Field Means

Port n The number of the terminal server port. username The name you or the network manager assigned to the port with the DEFINE or SET

PORT USERNAME command.

Seconds The number of seconds since the counters were last reset to zero. Since Zeroed

Framing The number of bytes the port has received with illegally formatted frames. Framing Errors errors often produce garbled characters because of a missing stop bit.

Parity Errors The number of bytes received at the port with parity errors. Parity errors can indicate a

problem with the port or the terminal attached to it, or mismatched characteristics between the terminal and the port.

Overrun The number of times that the terminal server lost characters from this port because the Errors terminal server input buffers overflowed. Overrun errors may indicate a flow control

problem between the terminal and the port.

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SHOW|LIST PORT

Field Means

Input Count The number of bytes (characters) that your terminal has transmitted to the port. Output Count The number of bytes (characters) that the port has transmitted to your terminal. Local The number of times you have logged on to the port.

Accesses Remote The number of times that a user at another port or node on the LAN has

Accesses established a connection at this port. For a terminal user viewing his or her own port,

this counter is likely to be zero.

Idle Timeouts The number of times the that terminal server has disconnected a session for being

inactive, when the session was initiated by a remote connection queue. For a terminal user viewing his or her own port, this counter is likely to be zero.

Serial Packet The number of SLIP packets this port has received from the remote device. Received

Serial Packets The number of SLIP packets this port has sent to the remote device. Sent

Serial Packets The number of SLIP packets from this port that the terminal server has discarded. Discarded

Serial Packet The number of SLIP packets that the port received that did not contain the Length Errors correct number of bytes.

Network Packets The number of Ethernet packets bound for this port that the terminal server has Received converted to SLIP packets.

Network The number of SLIP packets from this port that the terminal server has converted Packets Sent to Ethernet packets.

Network The number of Ethernet packets that the terminal server has discarded. Packets Discarded

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SHOW|LIST PORT STATUS

5. TS3395> show port status

Port 12: lynne Server: XFF4B15

Access: Local Current Service:

Status: Executing Cmd Current Node: Sessions: 0 Current Port:

Input XOFFed: No Output Signals: N/A Output XOFFed: No Input Signals: N/A

Last Char Output: 6c Last Char Input: 0d

Script Host:

Script File:

Field Means

Port n The number of the terminal server port.

SHOW|LIST PORT

username The name you used to log on to this port, or the name the network manager assigned to

the port with the DEFINE or SET PORT USERNAME command. Server The name of the terminal server unit where this port is connected. Access The type of connections allowed at this port. The type of connections that may appear

in this field are these:

Access type Means

Dynamic Users can gain access to the port through the local terminal

server or from a remote host or device on the network.

Local Users can gain access to the port only through the local

terminal server.

Remote Users can gain access to the port only through remote

connections with a LAT service name or port number.

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SHOW|LIST PORT

Status The current activity at this port. Some of the possible status messages do not appear

when you enter this command at your own port. These include Idle, Locked, Loading Script, Finding Script, and Running Script. Other status messages that you might see include these:

Status Means

Connected The port is currently connected to a LAT service or Telnet

destination.

Connecting The port is currently attempting to connect to a LAT service

or Telnet destination.

Disconnected The server disconnected the port from a session. (This may

happen if a session is inactive for a long period of time.) Disconnecting The server is disconnecting a port from a session. Executing Cmd The port is executing a command from the terminal server

local command mode. Local Mode The port is logged on to the server and is in local command

mode. Sessions The number of active sessions at this port.

Current The session that you most recently interrupted when you entered Service local command mode.

Current Node The name of the LAT service node or the Internet address of the Telnet node where the

current session is established.

Current Port The Telnet port number if the current session is a Telnet session. Current Domain The domain name or Internet address of the Telnet destination if the current session is a

Telnet session.

Input XOFFed Whether XON|OFF flow control is enabled for data input to the port from your

terminal.

Output XOFFed Whether XON|OFF flow control is enabled for data output form the port to your

terminal.

Output Signals The modem control signals that the port asserts to your terminal. Input Signals The modem control signals that your terminal asserts to the port. Last Char Output The hexadecimal value of the last character that the port sent to your terminal. Last Char Input The hexadecimal value of the last character that the port received from your terminal.

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SHOW|LIST PORT

SHOW|LIST PORT SUMMARY

6. TS3395> show port summary

Port Access Status Services Offered 18 Apr 1991 12:50:32

12 Local Executing Cmd

Field Means

PortThe number of your terminal server port. Access The type of connections the terminal server allows at this port. The types that may

appear in this field are these:

Access type Means

Dynamic Users can gain access to the port through the local terminal

server or from a remote host or device on the network.

Local Users can gain only local access to the port through the

terminal server.

Remote Users can gain only remote access to the port only by service

name or port number.

Status One of the following status modes:

Status Means

Connected The port is currently connected to a device on the network. Connecting The port is currently attempting to connect to a device on the

network.

Disconnected A session was disconnected at this port. This may happen if a

session is inactive too long. Disconnecting The port is disconnecting from a session. Executing CmdThe port is executing a terminal server command. Idle The port is not in use. (This status does not appear for a port

if you are logged on to that port.) Local Mode A user is logged on to a port, and that port is in local

command mode.

Services Offered The names of the local services that the terminal server offers at this port.

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SHOW|LIST PORT

SHOW PORT KEYMAP

7. TS3395> show port keymap

Address: 00-00-81-FF-4B-15 Name: XFF4B15 Number: 0 Device: VT100 TerminalType: VT100 Tn3278Type : MODEL2 Keymap: 3270-Key KeyCode Description NEWLINE : "0A" "LF "

TAB : "09" "TAB " BACKTAB : "1B 09" "ESCTB" CURSORUP : "1B 5B 41" "KEYUP" CURSORLEFT : "1B 5B 44" "KEYBK" CURSORRIGHT : "1B 5B 43" "KEYFW" CURSORDOWN : "1B 5B 42" "KEYDN" HOME : "1B 68" "ESCh " DELETE : "7F" "DEL " ERASEEOF : "05" "CTRLe" ERASEINPUT : "1B 69" "ESCi " INSERT : "1B 7F" "ESCDL" FLUSHINPUT : "1B 66" "ESCf " REFRESH : "1B 72" "ESCr " CENTSIGN : "1B 63" "ESCc " DUPLICATE : "04" "CTRLd" FIELDMARK : "06" "CTRLf" SCROLL : "1B 6C" "ESCl " STATUS ON/OFF : "1B 3F" "ESC? " RESET : "12" "CTRLr" FASTLEFT : "16" "CTRLv" FASTRIGHT : "15" "CTRLu" SHOWKEYS : "18" "CTRLx" PRINT : "10" "CTRLp" PF1 : "1B 4F 71" "NUM 1" PF2 : "1B 4F 72" "NUM 2" PF3 : "1B 4F 73" "NUM 3" PF4 : "1B 4F 74" "NUM 4" PF5 : "1B 4F 75" "NUM 5" PF6 : "1B 4F 76" "NUM 6" PF7 : "1B 4F 77" "NUM 7" PF8 : "1B 4F 78" "NUM 8" PF9 : "1B 4F 79" "NUM 9" PF10 : "1B 4F 50" "PF1 " PF11 : "1B 4F 51" "PF2 " PF12 : "1B 4F 52" "PF3 " PF13 : "1B 21" "ESC! "

(continues)

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PF14 : "1B 40" "ESC@ " PF15 : "1B 23" "ESC# " PF16 : "1B 24" "ESC$ " PF17 : "1B 25" "ESC% " PF18 : "1B 5E" "ESC^ " PF19 : "1B 26" "ESC& " PF20 : "1B 2A" "ESC* " PF21 : "1B 28" "ESC( " PF22 : "1B 29" "ESC) " PF23 : "1B 5F" "ESC_ " PF24 : "1B 2B" "ESC+ " PA1 : "1B 2C" "ESC, " PA2 : "1B 2E" "ESC. " PA3 : "1B 2F" "ESC/ " SYSREQ : "1B 73" "ESCs " ENTER : "0D" "ENTER" CLEAR : "03" "CTRLc" CURSORSEL : "1B 6B" "ESCk " TEST : "1B 74" "ESCt "

Field Means

Device The name of the TN3270 device in the display. TerminalType The local terminal type.

SHOW|LIST PORT

Tn3270Type The TN3270 device that the local terminal emulates in a TN3270 session. Keymap The table that follows contains the escape sequences that the terminal server uses to

translate entries on the local ASCII keyboard into 3270 display station functions. 3270-Key An IBM display station function. KeyCode The hexadecimal value for the keyboard escape sequence at the local terminal which

corresponds to the IBM display station function. Description A text description of the keyboard function.

Related Commands

This command is useful with the SHOW|LIST PORTS commands:

Command Function

SET PORT PAUSE ENABLED Pauses the display after 24 lines of information appear on

the screen. The display continues to scroll information when you press the <Return> key.

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SHOW|LIST SERVICES

SHOW|LIST SERVICES Display a list of LAT services on the network

The SHOW SERVICES command displays a list of available LAT services on the network, and information about each service. The LIST SERVICES command displays a list of services in the permanent database.

Notes

These commands display only those LAT services that are available to you on the network.

Some ports may not accept commands such as SHOW SERVICES that display network resources. Check with the network manager if you have questions about availability of display commands at your port.

Syntax

SHOW SERVICES [

service-name

[LOCAL] [CHARACTERISTICS]

] [CHARACTERISTICS]

[STATUS] [SUMMARY]

[ALL] [CHARACTERISTICS]

[STATUS] [SUMMARY]

LIST SERVICES [

Abbreviation

SH SERV LIS

Where Means

service-name Display information about one or more services that you specify in this variable. If

you do not specify a service name, the terminal server displays all services available at this port.

You can use the asterisk character (*) as a template to select a subset of names with this command. For example, if you entered SHOW SERVICES AB*, the system would display all available names that began with AB. If you entered SHOW SERVICES A*BC, the system would display names that began with A and ended with BC.

ALL Display a list of all services available at this port. This is the default display for this

command.

service-name

[LOCAL] [CHARACTERISTICS]

] [CHARACTERISTICS]

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SHOW|LIST SERVICES

Where Means

LOCAL Display a list of local services offered by the terminal server. CHARACT- Display the current values for service characteristics, defined by the network manager

ERISTICS STATUS Display information about the condition and availability of services. SUMMARY Display a one-line summary about the availability of services.

Examples

1. TS3395> show services characteristics

Service: XANADU 20 May 1993 14:54:58

Identification: FINANCEVAX - The Corporate MicroVAX II

Service: PRINTER 20 Aug 1991 14:54:58

Identification: Terminal Server Printer Queue

Ports: 2, 7

Rating: 127

Enabled Characteristics:

Connections, Queuing

Where Means

Service The name of the LAT service on the network. Identification A text string that identifies the service or describes how to use the service. Ports The number of ports that can establish a session with this service. Rating The relative capacity of this service to accept sessions. The rating is proportional to

the number of ports that offer the service. If no ports offer the service, then the rating is 0.

Enabled The characteristics that the network manager has enabled for the local Characteristics service. These include the following:

Characteristic Means

Connections The terminal server allows connections to the service. Password The terminal server requires that users provide a password to

establish a session with this service.

Queuing The terminal server places connection requests in a queue if it

cannot fulfill a request immediately.

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SHOW|LIST SERVICES

2. TS3395> show services status

Service XANADU - 2 Connected

Node Name Status Rating Identification

XANADU 2 Connected 77 Xanadu - The SynOptics Corporate MicroVAX

Field Means

Service The name of the LAT service on the network. Status The availability of the service. The status is one of the following:

Status Means

n Connected Users can reach the service, and other ports already have n

currently active sessions with this service.

Reachable Users can reach the service, and no other ports have currently

active sessions with the service.

Unknown Users could reach the service at one time, but may not be able

to now.

Unreachable Users cannot reach this service, or an attempt to reach this

service has timed out. Rating The relative capacity of this service to accept additional sessions. Identification A text string that identifies the service or describes how to use the service.

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SHOW|LIST SERVICES

3. TS3395> show services summary

Service Name Status Identification

FinanceVAX Available Finance File Server DEVELOPMENTVAX Available Devlopment VAX PAYROLLHOST Available Accounts_Host Available Accounts Receivable

Field Means

Service Name The name of the LAT service on the network. Status The entries in this column indicate the availability of the LAT services to users on the

network. These entries are possible in this column: Available Users can establish sessions with this service on at least one

node that offers it.

n Connected Users can establish sessions with the service, and n sessions

are currently active at this service. Unavailable Users cannot establish sessions with this service. Unknown None of the nodes that offers this service are reachable.

Identification A text string that identifies the LAT service, or describes how to use the service.

Related Commands

The SHOW|LIST SERVICES commands provide information that is useful with these commands:

Command Function

LAT CONNECT Establishes a session with a LAT service. CONNECT Establishes a session with a LAT service or Telnet

destination.

SET PORT PAUSE ENABLED Pauses the display after 24 lines of information appear on

the screen. The display continues to scroll information when you press the <Return> key.

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SHOW SESSIONS

SHOW SESSIONS Display a list of active sessions

The SHOW SESSIONS command displays a list of all active sessions at your port. The list includes session numbers and other information.

Notes

Use this command when you have two or more active sessions, and you need to know the number of a session to disconnect it or reopen it. This command is also useful if you need to know the service mode of a session. If you enter this command in a Multisessions window, the display does not include session numbers for those sessions currently being displayed in another window.

UNIX alias: JOBS [PORT port-list]

Syntax

SHOW SESSIONS [PORT

Abbreviation

SH SES [PO]

Where Means

port-list

]

port-list Display the active sessions at the port you specify in this variable. Users at Secure

ports can only enter their own port numbers.

Example

TS3395> show sessions

Port 12: lynne Service Mode Current Session 3

- Session 1: Connected Interactive FINANCE.SUN.COM

- Session 2: Connected Interactive PAYROLLVAX

- Session 3: Connected Interactive UNIX.HOST.COM

Field Means

Port n The number of the terminal server port. username The name you used to log on to this port, or the name the network manager assigned to

the port with the DEFINE or SET PORT USERNAME command. Service Mode The port mode, which is either Service Mode or Local Mode. Session n The session number.

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SHOW SESSIONS

Field Means

status The connection status of the session. The types of status are the following:

Status Means

Connected The port has an active session with a LAT service or a Telnet

destination.

Connecting The port is attempting to connect to a LAT service or a Telnet

destination.

Disconnected The port has disconnected from a session. (A port may

disconnect from a session after it has been inactive for a certain period of time.)

Disconnecting The port is disconnecting from a session. (A port may

disconnect from a session after it has been inactive for a certain period of time.)

Queued at n The position in the connection queue for a LAT service or

Telnet destination.

Service Mode The data transparency mode for the current session at this port. The service modes that

can appear in this field are the following:

Service Mode Means

Interactive The terminal server recognizes all control characters. Passall The terminal server passes all characters as data. Passthru The terminal server recognizes the XON and XOFF characters,

but passes all other characters as data.

Transparent The terminal server ignores Telnet option messages received

from a remotely initiated Telnet session and does not send any Telnet options messages from a locally initiated Telnet session. For LAT sessions, the terminal server operates in Passthru mode at the local port, but tells its connection partner it is operating in Passall mode.

destination (node) The LAT service or Telnet destination associated with a session. If the name of the

LAT service differs from the name of the node that offers the service, the display shows the name of the node within parentheses. If the destination is a domain name that is too long to fit in the display, the terminal server truncates the domain name and display an asterisk (*) to indicate that it truncated the name.

If the destination name reflects a remote access connection to the port, the name is that of the LAT service requested by the remote port, and the node name is the requesting node.

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SHOW SESSIONS

Field Means

Telnet options If a second line of session information appears, it indicates Telnet options. These are

features that the terminal server negotiates for a Telnet session, and include Echo and

Binary. When these option names are preceded by “Do” or “Don't,” they reflect whether

or not the Telnet destination will perform these options. When these option names are

preceded by “Will” and “Won't,” they reflect whether or not the terminal server will

perform these options.

Related Commands

The SHOW SESSIONS command provides information that is useful with these

commands:

Command Function

RESUME Reopens the session you specify with a session number or

the previous session. BACKWARDS Reopens the next lower-numbered session. FORWARDS Reopens the next higher-numbered session. DISCONNECT Terminates the session you specify with a session number.

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TELNET CONNECT Establish a session with a Telnet destination

The TELNET CONNECT command establishes a session with a Telnet destination. Use the SHOW DESTINATIONS or SHOW DOMAIN commands to obtain a list of Telnet destination names and Internet addresses on your network.

Notes

If you enter the TELNET CONNECT command without a domain name or an Internet address, the terminal server searches for a predefined preferred Telnet service. The SHOW PORT CHARACTERISTICS display lists the Preferred Services, if any, at your port.

TN3270 CONNECTIONS: You can use an Internet address or a domain name to reach an IBM host and establish a TN3270 session. Once you make the connection, the terminal emulates an IBM 3270 display station. See Chapter 4 for more information about TN3270 terminal emulation.

TELNET CONNECT

UNIX alias: OPEN [domain-name[:telnet-port-number]]

[internet-address[:telnet-port-number]]

Syntax

TELNET [CONNECT]

Abbreviation

TEL [C]

Where Means

domain name- Establish a session with the Telnet host you specify in this variable. A

domain name can contain up to four segments, each separated by a period.

internet- address Establish a session with the device at the address in this variable. An Internet

address consists of four numbers, separated by periods.

:telnet-port- number Establish a session using the number of an Internet protocol or the port

number on a Model 3395/3395A Terminal Server you in this variable. You

must precede the port number with a colon (:) to separate it from the domain

name or the Internet address. Valid port numbers are the whole numbers 1

through 32767.

[domain-name[:telnet-port-number

[

internet-address[:telnet-port-number

]]

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TELNET CONNECT

Examples

These examples show how you can use the TELNET CONNECT command with different keywords and variables to establish a session with a Telnet destination. Example 4 shows a TN3270 connection.

1. This command uses the domain name FINANCESUN.SYNOPTICS.COM.

2. This command has no domain name or Internet address. In the absence of this

TS3395> telnet connect financesun.synoptics.com TS3395 -010- Session 4 to FINANCESUN.COM established

Welcome To FINANCESUN Please log on.

information, the terminal server searches for a predefined preferred destination. In this example, the preferred destination is a Telnet host named ACCOUNTSHOST.COM.

TS3395> telnet connect TS3395 -010- Session 5 to ACCOUNTSHOST.COM established

This is ACCOUNTSHOST.COM

Please enter your username:

If the network manager has not defined a preferred destination, the message Preferred service has not been defined appears on the screen. If this happens, see your network manager, or enter a TELNET domain name with the TELNET CONNECT command.

3. This command uses the Internet address 128.10.2.30 and the Telnet port number 23.

TS3395> telnet connect 128.10.2.30:23 TS3395 -010- Session 6 to 128.10.2.30:23 established

Welcome to DevelopmentSUN.COM Please log on.

4. This command uses a Telnet domain name to reach an IBM host. Once the

connection is established, the terminal emulates an IBM 3278 style terminal, and the terminal's keyboard responds like the IBM keyboard.

TS3395> telnet connect ibmhost.com TS3395 -010- Session 3 to IBMHOST.COM established

This is IBMhost.COM Username:

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TELNET CONNECT

Related Commands

These commands provide functions that are useful with or similar to the TELNET CONNECT command:

Command Function

SHOW DESTINATIONS Displays a list of LAT services and Telnet destinations on

the network.

SHOW DOMAIN Displays a list of learned and static Telnet domain names on

the network.

CONNECT Establishes a session with a LAT service or a Telnet

destination.

RLOGIN Establishes as session with a host if the host has been

configured for an RLOGIN implementation. (This command may require a log on password as well as a host name.)

DISCONNECT Terminates a session between the terminal server port and a

device on the LAN.

893-386-B 3-75

Nortel Networks 3395A, 3395 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Figures

Tables

Preface

Organization

Conventions

Related Documentation

SynOptics Customer Support

Expanding the Network with the Terminal Server

Using the Terminal Server

The Menu Interface

Dedicated Services

Logging On to a Terminal Server Port

Kerberos Passwords

Terminal Server Scripts

Managing Sessions

Establishing a Session

Suspending a Session

Using Session Numbers

Establishing Multiple Sessions

Disconnecting From a Session

Using Other Terminal Server Commands

Using UNIX Aliases for Terminal Server Commands

Logging Out of the Terminal Server Port

If You Make a Mistake

Privilege Levels

Summary

Entering Commands

Abbreviating Commands and Keywords

Editing the Command Line

Assigning Session Management Functions to Keyboard Characters

Assigning a Local Switch Character

Using the Break Key

Session Switching Characters

Telnet Session Management Characters

Using the Terminal Server Menu

Viewing and Changing Information in the Terminal Server Databases

Using the SHOW|LIST Commands

Using UNIX Aliases for Terminal Server Commands

BACKWARDS

CONNECT

DISCONNECT

FORWARDS

HELP

LAT CONNECT

LOCK

LOGOUT PORT

RESUME

RLOGIN

SCRIPT

SET PORT

SET SESSION

SHOW DESTINATIONS

SHOW|LIST DOMAIN

SHOW NODES

SHOW|LIST PORT

SHOW|LIST SERVICES

SHOW SESSIONS

TELNET CONNECT