Glossary

 

 

Network will have the same thing as the right-hand portion of

 

their Domain Names (matisse.net in the examples above). It

 

is also possible for a Domain Name to exist but not be

 

connected to an actual machine. This is often done so that a

 

group or business can have an Internet e-mail address without

 

having to establish a real Internet site. In these cases, some

 

real Internet machine must handle the mail on behalf of the

 

listed Domain Name.

Escape Sequence

A sequence of special characters that sends a command to a

 

device or program. Typically, an escape sequence begins with

 

an escape character, but this is not universally true.

 

An escape sequence is commonly used when the computer

 

and the peripheral have only a single channel in which to

 

send information back and forth. If the device in question is

 

"dumb" and can only do one thing with the information being

 

sent to it (for instance, print it) then there is no need for an

 

escape sequence. However most devices have more than one

 

capability, and thus need some way to tell data from

 

commands.

Ethernet

A LAN cable-and-access protocol that uses twisted-pair or

 

coaxial cables and CSMA/CD (Carrier Sense Multiple

 

Access with Collision Detection), a method for sharing

 

devices over a common medium. Ethernet runs at 10 Mbps;

 

Fast Ethernet runs at 100 Mbps. Ethernet is the most common

 

type of LAN.

Flash

Flash refers to a type of memory that can be erased and

 

reprogrammed in units of memory known as blocks rather

 

than one byte at a time; thus, making updating to memory

 

easier.

Flow Control

A method of controlling the amount of data that two devices

 

exchange. In data communications, flow control prevents one

 

modem from "flooding" the other with data. If data comes in

 

faster than it can be processed, the receiving side stores the

 

data in a buffer. When the buffer is nearly full, the receiving

Glossary-4

AlterPath Manager E2000 Manual

Page 190
Image 190
Cyclades AlterPath BladeManager user manual Escape Sequence, Ethernet, Flash, Flow Control