Atop Technology EH7510 User manual - Manual (Page 119)

Atop Industrial Managed Ethernet Switch
EH7510
User Manual V 1.0
113
Glossary
Term Description
802.1 A working group of IEEE standards dealing with Local Area Network.
802.1p
Provides mechanism for implementing Quality of Service (QoS) at the Media
Access Control Level (MAC).
802.1x
IEEE standard for port-based Network-Access Control; provides an
authentication mechanism to devices wishing to attach to a LAN or WLAN
Broadcast Broadcasts are packets to all station of a local network.
Client Devices that use services provided by other participants in the network.
DES
Data Encryption Stnadard; a block cipher that uses shared secret encryption.
It’s based on a symmetric-key algorithm that uses a 56-bit key.
DHCP
Dynamic Host Configuration Protocol; allows a computer to be configured
automatically, eliminating the need for intervention by a network
administrator. It also prevents two computers from being configured with the
same IP address automatically. There are two versions of DHCP; one for
IPv4 and one for IPv6.
DNS
Domain Name System; a hierarchical naming system built for any computers
or resources connected to the Internet. It maps domain names into numerical
identifiers. For example, the domain name www.google.com translates to the
address 74.125.153.104.
EAP
Extensible Authentication Protocol; an authentication framework widely used
by IEEE.
Ethernet
Star-formed physical transport medium; all stations can send data
simultaneously; collisions are detected and corrected through network
protocols.
Gateway
Provides access to other network components on a layer of the OSI model;
packets not going to a local partner are sent to the gateway. The gateway
takes care of communication with remote network.
IEEE Institute of Electrical and Electronics Engineers.
IGMP
Internet Group Management Protocol; used on IPv4 networks for
establishing multicast group memberships.
IP Internet Protocol
IPv4
Internet Protocol version 4; fourth revision of the Internet Protocol. Together
with IPv6, it is the core of internet network. It uses 32-bit addresses, which
means there are only 2^32 possible unique addresses. Because of this
limitation, an IPv4 addresses shortage has been developing. This has
stimulated the development of IPv6, which is still in its early stage of
development.
LAN
Local Area Network. Network that connects devices in a limited geographical
area such as company or computer lab.
MAC
Media Access Control. A sub-layer of the Data Link Layer specified in the
OSI model. It provides addressing and channel access control mechanisms
to allow network nodes to communicate within a LAN.
MAC Address
A unique identifier assigned to network interfaces for communications on
network segment. Formed according to the rules of numbering name space
managed by IEEE.
MD5
Message-Digest algorithm 5; widely used cryptographic has function with a
128-bit hash value.
Multicast
This type of transmission sends messages from one host to multiple hosts.
Only those hosts that belong to a specific multicast group will receive the
multicast. Also, networks that support multicast send only one copy of the
information across the network until the delivery path that reaches group
members diverges. At these diverges points, multicast packets will be copied
and forwarded. This method can manage high volume of traffic with different
destinations while using network bandwidth efficiently.