Network architecture will help you gain the technical leadership skills you need to design and implement high-quality networks.
What is Network Architecture
A network architecture is a blueprint of the complete
computer communication network, which provides a framework and technology
foundation for designing, building and managing a communication network. It
typically has a layered structure. Layering is a modern network design principle
which divides the communication tasks into a number of smaller parts, each part
accomplishing a particular sub-task and interacting with the other parts in a
small number of well-defined ways. Layering allows the parts of a communication
to be designed and tested without a combinatorial explosion of cases, keeping
each design relatively simple.
If a network architecture diagram is open, no single vendor owns
the technology and controls its definition and development. Anyone is free to
design hardware and software based on the network architecture. The TCP/IP
network architecture, which the Internet is based on, is such an open network
architecture and it is adopted as a worldwide network standard and widely
deployed in local area network (LAN), wide area network (WAN), small and large
enterprises, and last but not least, the Internet.
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What is Network Architecture for
The network architecture and design specialization will
help you gain the technical leadership skills you need to design and implement
high-quality networks that support business needs. You will learn how to design,
maintain, and troubleshoot Internet, intranet, and extract connections,
including local- and wide-area networks. This specialization will also build
your knowledge of developing security and disaster recovery plans. Upon
completion of this online degree, you will be well positioned to assume a senior
management or team leader role in network management.
Network Architecture (OSI)
Open Systems Interconnection (OSI) network architecture,
developed by International Organization for Standardization, is an open standard
for communication in the network across different equipment and applications by
different vendors. Though not widely deployed, the OSI 7 layer model is
considered as the primary network architectural model for inter-computing and
In addition to the OSI network architecture model, there
exist other network architecture models by many vendors, such as IBM SNA
(Systems Network Architecture), Digital Equipment Corporation (DEC; now part of
HP) DNA (Digital Network Architecture), Apple computer's AppleTalk, and Novell's
Network architecture provides only a conceptual
framework for communications between computers. The model itself does not
provide specific methods of communication. Actual communication is defined by
various communication protocols.
Examples of Network Architecture
Symbols of Network Architecture
Some network mapping symbols for network engineer.
Provide a common graphics technology for network mapping.