Ethernet
A local-area network (LAN) protocol
developed in 1976. Ethernet supports data transfer rates of 10 Mbps. Ethernet is one of
the most widely implemented LAN standards. A newer version of Ethernet, called
100Base-T supports data transfer rates of 100 Mbps.The newest version, Gigabit Ethernet
supports data rates of 1 gigabit (1,000 megabits) per second.
LAN
Local Area
Network (LAN) A local area network is a number of devices, typically PC's, fileservers
and printers, connected to one or more "segments" of cable.
Matrix Switching
Network
management tools which provide access to data circuits in the wide area network to
allow fault detection, monitoring and reconfigurations..
Spoofing
Many network and server operating
systems send "keepalive" packets to check the state of connected clients, to
ensure that they really are still connected. During periods of inactivity this can result
in unnecessary calls being made. For this reason, ISDN routers are normally configured to
spoof these connections, and reply to keepalive packets on behalf of the remote client.
Structured
Cabling
A very versatile and cost effective cabling system which can be used (with adapters where
appropriate) for a number of different services.
Voice over IP
Voice
transport over IP networks, such as the Internet. This could allow your company to make
enormous savings on telecomms costs by sending voice traffic anywhere around the world via
your internet connection.
Virtual Private Network
Your own VPN can be created between two sites which are
connected only via the Internet. This is far more secure than sending your traffic as IP
over the internet as it is encrypted, and can only be decrypted by the partner device the
other end.
Wide Area Network
A computer network that spans a
relatively large geographical area.
Typically, a WAN consists of two or more local-area networks (LANs).
Computers connected to a wide-area network are often connected through public networks,
such as the telephone system. They can also be connected through leased lines or
satellites. The largest WAN in existence is the Internet.
X.25
X.25
is a layer 3, packet based protocol typically run over a LAPB (Link Access Procedure
Balanced) layer 2 protocol. It is generally a wide area protocol. The protocol has a large
amount of built in resilience, and as such can guarantee delivery and integrity of data
from one node to another. |
