American Megatrends ManageTrends 2.7, User Manual

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Glossary 319
Domain Name
That part of the Uniform Resource Locator (URL) that tells a domain name server using
the domain name system (DNS) whether and where to forward a request for a Web page.
The domain name is mapped to an IP address.
Ethernet
Ethernet is a registered trademark of the Xerox Corporation. It describes the way data
packets are transferred between computers on a local area network (LAN).
Ethernet 802.2
Packet format that defines the standard for the data link layer. It is made up of two
smaller layers called the logical link control (LLC) layer and the media access control
(MAC) layer.
+-----------+--------+---------+-------+-------+-------+----------
|destination| source | length | DSAP | SSAP |control| data >
+-----------+--------+---------+-------+-------+-------+----------
< 1 > < 1 > < 1 > < 43-1497 >
Ethernet 802.3
Packet format that defines the data link layer of a packet for bus type networks that use
Carrier Sense Multiple Access / Collision Detection (CSMA/CD). The most common bus
type networks are 10Base-T, 100Base-T (Fast Ethernet), and 1000Base-T (Gigabit
Ethernet) networks. The letter
T at the end designates RJ-45 Category 5 cable.
Ethernet 802.3 is the standard that is used in most Ethernet cards and cables.
+-----------+--------+---------+----------
|destination| source | length | data >
+-----------+--------+---------+----------
< 6 > < 6 > < 2 > < 46-1500 >
Ethernet II
Packet format that defines the data link layer of a packet. This is the original Ethernet
standard.
+-----------+--------+---------+----------
|destination| source | type | data >
+-----------+--------+---------+----------
< 6 > < 6 > < 2 > < 46-1500 >