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This chapter explains the function and syntax of the terminal operating characteristics commands. For more information about defaults and usage guidelines, see the corresponding chapter of the Cisco IOS Configuration Fundamentals Command Reference, Release 12.1.
To define the character you enter at a vacant terminal to begin a terminal session, use the activation-character line configuration command. Use the no form of this command to make any character activate a terminal.
activation-character ascii-number
Syntax Description
ascii-number Decimal representation of the activation character.
To set the line for automatic baud detection, use the autobaud line configuration command. Use the no form of this command to restore the default.
autobaudSyntax Description
This command has no arguments or keywords.
To set the number of data bits per character that are interpreted and generated by the router hardware, use the databits line configuration command. Use the no form of the command to restore the default value.
databits {5 | 6 | 7 | 8}
Syntax Description
5 Five data bits per character. 6 Six data bits per character. 7 Seven data bits per character. 8 Eight data bits per character. This is the default.
To set the number of data bits per character that are interpreted and generated by the Cisco IOS software, use the data-character-bits line configuration command. Use the no form of the command to restore the default value .
data-character-bits {7 | 8}
Syntax Description
7 Seven data bits per character. 8 Eight data bits per character. This is the default.
To define the EXEC character width for either 7 bits or 8 bits, use the default-value exec-character-bits global configuration command. Use the no form of the command to restore the default value.
default-value exec-character-bits {7 | 8}
Syntax Description
7 Selects the 7-bit ASCII character set. 8 Selects the full 8-bit ASCII character set.
To configure the flow control default value from a 7-bit width to an 8-bit width, use the default-value special-character-bits global configuration command. Use the no form of the command to restore the default value.
default-value special-character-bits {7 | 8}
Syntax Description
7 Selects the 7-bit character set. 8
To define a character to disconnect a session, use the disconnect-character line configuration command. Use the no form of this command to remove the disconnect character.
disconnect-character ascii-number
Syntax Description
ascii-number Decimal representation of the session disconnect character.
To define a character that causes a packet to be sent, use the dispatch-character line configuration command. Use the no form of this command to remove the definition of the specified dispatch character.
dispatch-character ascii-number1 [ascii-number2 . . . ascii-number]
Syntax Description
ascii-number Decimal representation of the character, such as Return (decimal 13) for line-at-a-time transmissions.
To specify an identifier for a TCP packet dispatch state machine on a particular line, use the dispatch-machine line configuration command. Use the no form of the command to disable a state machine on a particular line.
dispatch-machine name
Syntax Description
name Name of the state machine that determines when to send packets on the asynchronous line.
To set the character dispatch timer, use the dispatch-timeout line configuration command. Use the no form of this command to remove the timeout definition.
dispatch-timeout milliseconds
Syntax Description
milliseconds Integer that specifies the number of milliseconds that the Cisco IOS software waits after putting the first character into a packet buffer before sending the packet. During this interval, more characters might be added to the packet, which increases the processing efficiency of the remote host.
To define a system escape character, use the escape-character line configuration command. Use the no form of this command to set the escape character to Break.
escape-character {ascii-number | none}
Syntax Description
ascii-number Either the decimal representation of the character or a control sequence (Ctrl-E, for example). none Disables escape entirely.
To configure the character widths of EXEC and configuration command characters, use the exec-character-bits line configuration command. Use the no form of the command to restore the default value.
exec-character-bits {7 | 8}
Syntax Description
7 Selects the 7-bit character set. 8 Selects the full 8-bit character set for use of international and graphical characters in banner messages, prompts, and so forth.
To define the local hold character used to pause output to the terminal screen, use the
hold-character line configuration command. Use the no form of this command to restore the default.
Syntax Description
Either the decimal representation of the hold character or a control sequence (for example, Ctrl-P).
To set the line as an insecure location, use the insecure line configuration command. Use the no form of this command to disable this feature.
insecureSyntax Description
This command has no arguments or keywords.
Syntax Description
screen-length Number of lines on the screen. A value of zero disables pausing between screens of output.
To record the location of a serial device, use the location line configuration command. Use the no form of this command to remove the description.
location text
Syntax Description
text Location description.
To set up a temporary password on a line, use the lock EXEC command.
lockSyntax Description
This command has no arguments or keywords.
To enable use of the lock EXEC command, use the lockable global configuration command. Use the no form of this command to reinstate the default---the terminal cannot be locked.
lockableSyntax Description
This command has no arguments or keywords.
To warn users of an impending forced timeout, use the logout-warning line configuration command. Use the no form of this command to restore the default.
logout-warning [number]
Syntax Description
number (Optional) Number of seconds that are counted down before session termination. If no number is specified, the default of 20 seconds is used.
To enable terminal notification about pending output from other Telnet connections, use the notify line configuration command. Use the no form of this command to end notification.
notifySyntax Description
This command has no arguments or keywords.
To set the padding on a specific output character, use the padding line configuration command. Use the no form of this command to remove padding for the specified output character.
padding ascii-number count
Syntax Description
ascii-number count Number of NULL bytes sent after that character, up to 255 padding characters in length.
To define generation of a parity bit, use the parity line configuration command. Use the no form of the command to specify no parity.
parity {none | even | odd | space | mark}
Syntax Description
none No parity. even Even parity. odd Odd parity. space Space parity. mark Mark parity.
To configure a printer and assign a server TTY line (or lines) to it, use the printer global configuration command. Use the no form of the command to disable printing on a TTY line.
printer printer-name {line number | rotary number} [newline-convert | formfeed]
Syntax Description
printer-name Printer name. line number Assigns a TTY line to the printer. rotary number Assigns a rotary group of TTY lines to the printer. newline-convert (Optional) Converts newline (linefeed) characters to a two-character sequence "carriage-return, linefeed." formfeed (Optional) Causes the Cisco IOS software to send a form-feed character (ASCII 0x0C) to the printer TTY line immediately following each print job received from the network.
To save user EXEC command changes between terminal sessions, use the private line configuration command. Use the no form of this command to restore the default condition.
privateSyntax Description
This command has no arguments or keywords.
To display information about the terminal line of the current user, including host name, line number, line speed, and location, use the show whoami EXEC command.
show whoami [text]
Syntax Description
text (Optional) Additional data to print to the screen.
To configure the number of data bits per character for special characters such as software flow control characters and escape characters, use the special-character-bits line configuration command. Use the no form of the command to restore the default value.
special-character-bits {7 | 8}
Syntax Description
7 Selects the 7-bit ASCII character set. This is the default. 8 Selects the full 8-bit character set for special characters.
To specify the transition criteria for the state of a particular state machine, use the state-machine global configuration command. Use the no form of the command to delete a particular state machine.
state-machine name state firstchar lastchar [nextstate | transmit]
Syntax Description
name Specifies the name for the state machine (used in the dispatch-machine line command). The user can specify any number of state machines, but each line can have only one state machine associated with it. state Defines which state is being modified. There are a maximum of eight states per state machine. Lines are initialized to state 0 and return to state 0 after a packet is transmitted. firstchar lastchar Specify a range of characters. If the state machine is in the indicated state, and the next character input is within this range, the process goes to the specified next state. Full 8-bit character comparisons are done, so the maximum value is 255. Take care that the line is configured to strip parity bits (or not generate them), or duplicate the low characters in the upper half of the space. nextstate (Optional) Defines the state to enter if the character is in the specified range. transmit (Optional) Causes the packet to be transmitted and the state machine to be reset to state 0. Recurring characters that have not been explicitly defined to have a particular action return the state machine to state 0.
To set the number of the stop bits transmitted per byte, use the stopbits line configuration command. Use the no form of the command to restore the default value.
stopbits {1 | 1.5 | 2}
Syntax Description
1 One stop bit. 1.5 One and one-half stop bits. 2 Two stop bits.
To change the number of data bits per character for the current terminal line for this session, use the terminal databits EXEC command.
terminal databits {5 | 6 | 7 | 8}
Syntax Description
5 Five data bits per character. 6 Six data bits per character. 7 Seven data bits per character. 8 Eight data bits per character. This is the default.
To set the number of data bits per character that are interpreted and generated by the Cisco IOS software for the current line and session, use the terminal data-character-bits EXEC command.
terminal data-character-bits {7 | 8}
Syntax Description
7 Seven data bits per charcter. 8 Eight data bits. This is the default.
To define a character that causes a packet to be sent for the current session, use the terminal dispatch-character EXEC command.
terminal dispatch-character ascii-number1 [ascii-number2 . . . ascii-number]
Syntax Description
ascii-number The ASCII decimal representation of the character, such as Return (ASCII character 13) for line-at-a-time transmissions. The command can take multiple arguments, so you can define any number of characters as the dispatch character.
To set the character dispatch timer for the current terminal line for the current session, use the terminal dispatch-timeout EXEC command.
terminal dispatch-timeout milliseconds
Syntax Description
milliseconds An integer that specifies the number of milliseconds that the router waits after it puts the first character into a packet buffer before sending the packet. During this interval, more characters can be added to the packet, which increases processing efficiency of the remote host.
To temporarily set the ability of a line to act as a transparent pipe for file transfers for the current session, use the terminal download EXEC command.
terminal downloadSyntax Description
This command has no arguments or keywords.
To set the escape character for the current terminal line for the current session, use the terminal escape-character EXEC command.
terminal escape-character ascii-number
Syntax Description
ascii-number Either the ASCII decimal representation of the escape character or a control sequence (Ctrl-P, for example). Entering the escape character followed by X returns you to the EXEC when you are connected to another computer. See the "ASCII Character Set" appendix in this document for a list of ASCII characters.
To locally change the ASCII character set used in EXEC and configuration command characters for the current session, use the terminal exec-character-bits EXEC command.
terminal exec-character-bits {7 | 8}
Syntax Description
7 Selects the 7-bit ASCII character set. 8 Selects the full 8-bit character set.
To set flow control for the current terminal line for the current session, use the terminal flowcontrol EXEC command.
terminal flowcontrol {none | software [in | out] | hardware}
Syntax Description
none Prevents flow control. software Sets software flow control. in | out (Optional) Specifies the direction: in causes the router to listen to flow control from the attached device, and out causes the router to send flow control information to the attached device. If you do not specify a direction, both directions are assumed. hardware Sets hardware flow control. For information about setting up the EIA/TIA-232 line, see the manual that was shipped with your product.
Syntax Description
ascii-number Either the ASCII decimal representation of the hold character or a control sequence (for example, Ctrl-P). By default, no local hold character is set. The Break character is represented by zero; NULL cannot be represented.
To specify the current keyboard type for the current session, use the terminal keymap-type EXEC command.
terminal keymap-type keymap-name
Syntax Description
keymap-name Name defining the current keyboard type.
To set the number of lines on the current terminal screen for the current session, use the terminal length EXEC command.
terminal length screen-length
Syntax Description
screen-length Your desired number of lines on the screen. The router uses this value to determine when to pause during multiple-screen output. A value of zero prevents the router from pausing between screens of output. When the output exceeds the screen length, it scrolls past.
To display debug command output and system error messages for the current terminal and session, use the terminal monitor EXEC command.
terminal monitorSyntax Description
This command has no arguments or keywords.
To configure a line to inform a user that has multiple concurrent Telnet connections when output is pending on a connection other than the current one, use the terminal notify EXEC command.
terminal notifySyntax Description
This command has no arguments or keywords.
To change the character padding on a specific output character for the current session, use the terminal padding EXEC command.
terminal padding ascii-number count
Syntax Description
ascii-number count The number of NULL bytes sent after that character, up to 255 padding characters in length.
To define the generation of the parity bit for the current terminal line for the current session, use the terminal parity EXEC command.
terminal parity {none | even | odd | space | mark}
Syntax Description
none No parity. This is the default. even Even parity. odd Odd parity. space Space. mark Mark.
To change the retry interval for a terminal port queue, use the terminal-queue global configuration command. Use the no form of this command to restore the default terminal port queue interval.
terminal-queue entry-retry-interval interval
Syntax Description
interval Number of seconds between terminal port retries.
To set the terminal receive speed (how fast information is sent to the terminal) for the current line and session, use the terminal rxspeed EXEC command.
terminal rxspeed bps
Syntax Description
bps Baud rate in bits per second (bps).
To change the ASCII character widths to accept special characters for the current terminal line and session, use the terminal special-character-bits EXEC command.
terminal special-character-bits {7 | 8}
Syntax Description
To set the transmit and receive speeds of the current terminal line for the current session, use the terminal speed EXEC command.
terminal speed bps
Syntax Description
bps The baud rate in bits per second (bps). The default is 9600 bps.
To change the flow control start character for the current session, use the terminal start-character EXEC command.
terminal start-character ascii-number
Syntax Description
ascii-number The ASCII decimal representation of the start character.
To change the number of stop bits sent per byte by the current terminal line during an active session, use the terminal stopbits EXEC command.
terminal stopbits {1 | 1.5 | 2}
Syntax Description
1 One stop bit. 1.5 One and one-half stop bits. 2 Two stop bits. This is the default.
To change the flow control stop character for the current session, use the terminal stop-character EXEC command.
terminal stop-character ascii-number
Syntax Description
ascii-number The ASCII decimal representation of the stop character.
To cause the access server to generate a hardware Break signal on the EIA/TIA-232 line, which is associated with a reverse Telnet connection, for the current line and sessions, use the terminal telnet break-on-ip EXEC command.
terminal telnet break-on-ipSyntax Description
This command has no arguments or keywords.
To set the current line to refuse to negotiate full-duplex, remote echo options on incoming connections for current sessions, use the terminal telnet refuse-negotiations EXEC command.
terminal telnet refuse-negotiationsSyntax Description
This command has no arguments or keywords.
To allow the access server to negotiate transmission speed for the current line and session, use the terminal telnet speed EXEC command.
terminal telnet speed default-speed maximum-speed
Syntax Description
default-speed Line speed (in bps) that the access server will use if the device on the other end of the connection has not specified a speed. maximum-speed Maximum line speed (in bps) that the device on the other end of the connection can use.
To cause the access server to send a Telnet Synchronize signal when it receives a Telnet Break signal on the current line and session, use the terminal telnet sync-on-break EXEC command.
terminal telnet sync-on-breakSyntax Description
This command has no arguments or keywords.
To cause the current terminal line to send a Return character (CR) as a CR followed by a NULL instead of a CR followed by a Line Feed (LF) for the current session, use the terminal telnet transparent EXEC command.
terminal telnet transparentSyntax Description
This command has no arguments or keywords.
To specify the type of terminal connected to the current line for the current session, use the terminal terminal-type EXEC command.
terminal terminal-type terminal-type
Syntax Description
terminal-type Defines the terminal name and type and permits terminal negotiation by hosts that provide that type of service.
To set the terminal transmit speed (how fast the terminal can send information) on the current line and session, use the terminal txspeed EXEC command.
terminal txspeed bps
Syntax Description
bps Baud rate in bits per second (bps). The default is 9600 bps.
To specify the type of terminal connected to a line, use the terminal-type line configuration command. Use the no form of this command to remove any information about the type of terminal and reset the line to the default terminal emulation.
terminal-type {terminal-name | terminal-type}
Syntax Description
terminal-name Terminal name. terminal-type Terminal type.
To set the number of character columns on the terminal screen for the current line for a session, use the terminal width EXEC command.
terminal width characters
Syntax Description
characters Number of character columns displayed on the terminal. The default is 80.
To list the open sessions, use the where EXEC command.
whereSyntax Description
This command has no arguments or keywords.
To set the terminal screen width, use the width line configuration command. This command sets the number of character columns displayed on the attached terminal. Use the no form of this command to return to the default screen width.
width characters
Syntax Description
characters Number of character columns displayed on the terminal. The default is 80.
Posted: Wed Jul 26 14:42:59 PDT 2000
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