Design considerations for computer networks cover a wide range of topics including layout, capacity planning, and security.
Introduction to Network Topologies
Common
network topologies include the bus topology, star, and ring. Learn
more about these and other topologies in computer network design.
Computer Network Topology Diagrams
A
computer network topology is the physical communication scheme used by
connected devices. These pages illustrate the common computer network
topologies with diagrams including bus, ring and star topology diagrams.
Visual Overview of the OSI Model
The
OSI model provides a good conceptual framework for understanding the
implementation of network protocol and services design. This page
explains the OSI model through visual illustration.
Introduction to Area Networks
Besides
LANs and WANs, other types of area networks like MAN and SAN also
exist. Discover all the different forms of area networks and the roles
they play in network design.
What Is a Mesh Network?
A
mesh network is one kind of computer network topology. Mesh networks
are becoming more widespread as outdoor wireless and community networks
expand in popularity. Meshes are also found in home networks including
home automation and whole house audio systems.
Bandwidth and Latency in Network Design
Two critical elements of network design are the bandwidth and latency a network supports.
Network Gateway
A network gateway joins two networks together through a combination of hardware and software.
QoS - Quality of Service
QoS
technologies support levels of predictable performance for network
systems. Elements of QoS include availability (uptime), bandwidth
(throughput), latency (delay), and error rate.
The 5-4-3-2-1 Rule of Network Design
This rule of thumb proves useful especially when planning a business network layout.
What Is Attenuation?
In
computer networking, attenuation is a loss of signal strength.
Attenuation can occur over either wired or wireless network connections.
Multiple factors can cause attenuation including connection distance
and interference.
PAN - Personal Area Network
A
personal area network (PAN) is a computer network organized around an
individual person. Personal area networks typically include a mobile
computer, a cell phone and/or a handheld computing device such as a PDA.
Symmetric and Asymmetric Networking
In
a symmetric network, all devices normally can transmit and receive data
at equal rates, whereas asymmetric networks support disproportianately
more bandwidth in one direction than the other. Symmetric and asymmetric
network designs also pertain to management of resources as in P2P and
network encryption architectures.
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