Cyclades AlterPath BladeManager user manual Telnet, Terminal Server

	Glossary
TACACS+	Terminal Access Controller Access Control System Plus. A
	protocol that provides remote access authentication,
	authorization, and related accounting and logging services,
	used by Cisco Systems.

TCP Keep-Alive Interval The time interval between the periodic polling of all inactive TCP/IP connections, checking that the client processes really are still there. After a certain period of inactivity on an established connection, the server's TCP/IP software will begin to send test packets to the client, which must be acknowledged. After a preset number of 'probe' packets has been ignored by the client, the server assumes the worst and the connection is closed.

	The keepalive timer provides the capability to know if the
	client's host has either crashed and is down or crashed and
	rebooted.
Telnet	A terminal emulation program for TCP/IP networks such as
	the Internet. The Telnet program runs on your computer and
	connects your PC to a server on the network. You can then
	enter commands through the Telnet program and they will be
	executed as if you were entering them directly on the server
	console
Terminal Server	A terminal server has one Ethernet LAN port and many
	RS-232 serial ports. It is used to connect many terminals to
	the network. Because they have the same physical interfaces,
	terminal servers are sometimes used as console access
	servers.
TTY	1. In Unix, refers to any terminal; sometimes used to refer to
	the particular terminal controlling a given job (it is also the
	name of a Unix command which outputs the name of the
	current controlling terminal). 2. Also in Unix, any serial port,
	whether or not the device connected to it is a terminal; so
	called because under Unix such devices have names of the
	form tty.

AlterPath Manager E2000 Manual Glossary-11