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Avocent CCM1640, CCM840 Chapter 4: Using CCM Commands, Accessing the CLI, Entering Commands, Line Editing Operations for ASCII TTY Devices

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Chapter 4: Using CCM Commands	43

Chapter 4: Using CCM Commands

Accessing the CLI

You may access the CLI in three ways: using the Telnet CLI, using the serial CLI or entering the CLI access character during a session to a serial device. When the CLI is accessed, its prompt appears (>), indicating you may type a command.

Entering Commands

At the command prompt, type a command and then press Return or Enter. When the key is pressed, the command line comprises all characters to the left of the cursor. The character at the cursor and any characters to the right of the cursor are ignored. The following table lists the line editing operations for VT100 compatible devices.

Line Editing Operations for VT100 Compatible Devices

Operation	Action
Backspace	The character immediately before the cursor is erased and all text at
	and to the right of the cursor moves one character to the left.

Left Arrow	If the cursor is not at the beginning of the line, the cursor moves one
	character to the left. If the cursor is at the beginning of the line, no
	action is taken.

Right Arrow	If the cursor is not at the end of the line, the cursor moves one
	character to the right. If the cursor is at the end of the line, no
	action is taken.

Up Arrow	The CLI maintains a buffer containing the last 16 typed command
	lines. If there is a previous command line, it will be output as the
	current command line and may be edited. If there is no previous
	command line in the command line buffer, the command line is set to
	blanks and you may enter a new command.

Down Arrow	The next command in the CLI command line buffer is made available
	for edit. If there is no next command line, the command line is set to
	blanks and you may enter a new command.

Delete	The character at the cursor position is deleted and all characters to
	the right of the cursor position are moved left one character.

The following table lists the line editing operations for ASCII TTY devices.

There is no command line buffer available on an ASCII TTY device.

Line Editing Operations for ASCII TTY Devices

Operation	Action
Backspace	Erases the last character typed.

Esc	Erases the current command line.

Contents

Page Page Page Page Table of Contents Page 1 Product Overview Page Chapter 1: Product Overview Features and Benefits Safety Precautions Rack mount safety considerations Using AVWorks Page Installation and Configuration Page Chapter 2: Installation and Configuration Hardware Overview Installing the CCM Configuring the CCM Configuring the IP address and subnet mask To conﬁgure the IP address and subnet mask using a Telnet CLI: To conﬁgure the CCM using the serial CLI: Initial CCM login Reinitializing the CCM 3 Operations Page Chapter 3: Operations Overview Configuring Serial Port Settings Connecting to Serial Devices Connecting to devices using Telnet Connecting to devices from the serial CLI port Configuring and using dial-inconnections Connecting to devices using PPP Connecting to devices using SSH SSH Authentication Methods Page Enabling plain text Telnet and SSH connections Telnet CLI mode Ending device sessions Session time-outs Managing User Accounts To change a user’s conﬁguration information: To end another user’s CCM session: To delete a user: To display user conﬁguration information: Access rights and levels Using Authentication Modes Authentication summary Using Security Lock-out Managing the Port History Buffer Using port history mode commands Port History Mode Commands To access port history mode: To control the port history buffer display when you connect: To control the port history buffer content when you end a session: To clear and discard all data in a port history buffer: Managing the CCM Using SNMP To add or delete SNMP management entity addresses: To enable or disable SNMP traps: To add or delete SNMP trap destination addresses: To add, copy or delete port alert strings: To display SNMP conﬁguration information: To display port alert string information: 4 Using CCM Commands Page Chapter 4: Using CCM Commands Accessing the CLI Entering Commands When commands take effect Understanding Conventions Command syntax Page Syntax conventions Command Summary CCM Command Summary (Continued) Page Page Page 5 CCM Commands Page Chapter 5: CCM Commands Connect Command Disconnect Command Help Command Port Commands Port Alert Add command Port Alert Copy command Port Alert Delete command Port Break command Port History command Port Logout command Port Set command Page Quit Command Resume Command Server Commands Server CLI command Server FLASH command Server PPP command Server RADIUS command Server Reboot command Server Security command Server Set command Server SNMP command Server SNMP Community command Server SNMP Manager command Server SNMP Trap command Server SNMP Trap Destination command Server SSH command Show Commands Show Port command Page Show Port Alert command Show Server command Show Server CLI command Show Server PPP command Show Server RADIUS command Show Server Security command Show Server SNMP command Show User command SPC Command User Commands User Add command Page User Delete command User Logout command User Set command User Unlock command Page Appendices Page Appendices Appendix A: Technical Specifications Appendix B: Device Cabling Page RJ-45modular adaptors and cables Page Appendix C: Ports Used Appendix D: Technical Support