Extron Electronics MLC 226 IP Series Installation - Manual (Page 144)

Reference Material, cont’d
MLC 226 IP Series • Reference Material A-8
PRELIMINAR
Y
Ping is a utility/diagnostic tool that tests network connections. It is used to
determine if the host has an operating connection and is able to exchange
information with another host. The term (ping) is a reference to submarine
sonar, which sends out a signal and waits to hear it echo (“ping”) back from a
submerged object, much like how the ping utility functions in a network.
Port number is a preassigned address within a server that provides a direct route
from the application to the transport layer or from the transport layer to the
application of a TCP/IP system.
Static IP refers to an IP address that has been specifi cally (instead of dynamically—
see DHCP above) assigned to a device or system in a network confi guration.
This type of address requires manual confi guration of the actual network
device or system and can only be changed manually or by enabling DHCP.
Subnet — See subnetwork.
Subnet address is the portion of an IP address that is specifi cally identifi ed by the
subnet mask as the subnetwork.
Subnet mask A 32-bit address mask used in IP to identify the bits of an IP address
that are used for the subnet address. Using a mask, the router does not need
to examine all 32 bits, only those selected by the mask.
Subnetwork is a network that is part of a larger IP network and is identifi ed by a
subnet address. Networks can be segmented into subnetworks to provide a
hierarchical, multilevel routing structure.
Switcher slaving is an old term sometimes used to indicate that a device such as
the MLC or a main switcher unit is being used to control one or more A/V
switchers.
Switching rotation is another term for the set of buttons that are controlled by
the fi rmware. This is a mutually exclusive set of buttons controlled by
fi rmware (not scripts) that causes an input switching SIS command (1!, 2!,
3!, and so forth) to be sent via the MLS port when each button is pressed. In
Global Confi gurator, setting a button for input button mode is the same as
designating that button as part of the switching rotation.
TCP (Transmission Control Protocol) is a connection-oriented protocol defi ned at
the Transport layer of the OSI reference model. It provides reliable delivery
of data.
TCP/IP (Transmission Control Protocol/Internet Protocol) is the communication
protocol (language) of the Internet. Computers and devices with direct access
to the Internet are provided with a copy of the TCP/IP program to allow
them to send and receive information in an understandable form.
Telnet is a standard terminal emulation utility/protocol that allows a computer
to communicate with a remote user/client. A user who wishes to access a
remote system initiates a Telnet session using the address of the remote client.
The user may be prompted to provide a user name and password if the client
is set up to require them. Telnet enables users to log in on remote networks
and use those resources as if they were locally connected.
Tool tip is text that appears when the mouse pointer hovers over a button or other
item on screen.
UDP (User Datagram Protocol) is an Internet protocol for sending short packets of
information quickly between networked devices. It is faster than TCP and
is often used for broadcast and multicast communication, but it does not
include data verifi cation to ensure that all packets arrived at their destination.