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Components and Artifacts Network and Infrastructure Copyright © 2013-2014 Curt Hill Recall the Cube Copyright © 2013-2014 Curt Hill Introduction • In this EA3 model there are five levels • Goals and Initiatives • Products and Services • Data and Information • Systems and Applications • Network and Infrastructure • This considers the components and artifacts of the Network and Infrastructure Copyright © 2013-2014 Curt Hill What is this about? • Hardware • The main focus is on the operational computers and networks that the enterprise owns and uses • Every piece of hardware comes into view • Three categories: – Computer – Network – Other computer related – such as manufacturing robots Copyright © 2013-2014 Curt Hill Networks • Networks come in several flavors – Data – Telecommunications – Video • These used to be completely separate, but are now growing together Copyright © 2013-2014 Curt Hill Data Networks • Communications mechanisms between computer systems • Main goal is carry data/information between systems • Data must be digitized • A Local Area Network is usually confined to a building • Intranets are collections of close LANs • Wide Area Networks are geographically dispersed Copyright © 2013-2014 Curt Hill Telecommunications • • • • Main goal is voice communications These are telephone networks Data may be analog or digital Public Business Exchange (PBX) serves a business or local enterprise • Larger networks are usually public carriers – Baby bells – Cell companies Copyright © 2013-2014 Curt Hill Video • Specialized network designed to carry video • Transmit from producing sites to viewing sites • May be analog or digital • Public carriers – Broadcast television – Cable/satellite television Copyright © 2013-2014 Curt Hill The merger • Telephone used to be entirely analog as did television • In the latter quarter of the twentieth century telephones went digital • Broadcast television stopped being analog in June of 2009 • These may now be transmitted over the internet • ND IVN converted from dedicated video network to transmission over the internet Copyright © 2013-2014 Curt Hill Your turn • How many kinds of networks do we have at VCSU? Copyright © 2013-2014 Curt Hill Network Pieces • Every network, regardless of type, has certain pieces • A connection point – Where end users connect • External interface – Where this network connects to others, if it does • Backbone – The transmission facilities and the associated hardware Copyright © 2013-2014 Curt Hill Artifacts • • • • • • • • Network Connectivity Diagram Network Inventory Capital Equipment Inventory Building Blueprints Network Center Diagram Cable Plant Diagram Rack Elevation Diagram Virtually all of these will be augmented by text documents Copyright © 2013-2014 Curt Hill Network Connectivity Diagram • Show physical connections • What we want to see: – – – – Various systems Connections between these Connections to internet or other WAN Wireless access points • Consider the pieces of the next slide’s diagram Copyright © 2013-2014 Curt Hill Example Copyright © 2013-2014 Curt Hill Network Inventory • The equipment that makes the network function: – Routers, switches and hubs – Network printers – Servers • We want to see: – – – – Description Manufacturer and model Internal ID Location Copyright © 2013-2014 Curt Hill Audience Participation • As we have seen before, we often have several diagrams, treating one thing – Example: Network Connectivity Diagram and Network Inventory • Why do we need this profusion of documents to describe one thing? Copyright © 2013-2014 Curt Hill Capital Equipment Inventory • Similar to the network inventory, but things that are not part of the network – Same types of descriptions • Capital equipment purchases usually take a different process than incidental items – Usually there is a threshold cost point • Typically heavy equipment intended to last more than a year or two Copyright © 2013-2014 Curt Hill Your Turn • What kind of things does VCSU have that might fit into this inventory? Copyright © 2013-2014 Curt Hill Building Blueprints • These are used in planning where new space may be obtained for: – Offices – Storage – Production • Also important for planning placement of computing and network equipment and cabling • Like all artifacts, we prefer an electronic version Copyright © 2013-2014 Curt Hill Network Center Diagram • Floor diagram of how the machine rooms are laid out • We want to see a floor plan with the locations of: – Equipment racks – Cooling (if it takes floor space) – Desks and workbenches (if present) Copyright © 2013-2014 Curt Hill Cable Plant Diagram • The goal of this diagram is to show network cabling in relation to buildings • We would like to see – The cable types – Network closets – Computer rooms • This should distinguish between the three types of networks – Data, voice, video Copyright © 2013-2014 Curt Hill Rack Elevation Diagram • Shows the racks within a server room, network center or network closet • Closely related to previous two diagrams • These change over time, so should be maintained electronically Copyright © 2013-2014 Curt Hill VCSU Example • As of 2013 VCSU maintained this in a spread sheet Copyright © 2013-2014 Curt Hill VCSU Example Copyright © 2013-2014 Curt Hill Standards • Standards is a thread that should pervade the EA process • A number of technical standards exist in networking • Each of these should be identified • This will assist the planning process • Acquisition of new equipment will be easier when the required standards are known Copyright © 2013-2014 Curt Hill Security • Networks should be made subject to security reviews • The artifacts from this are generally text reports • These should include: – – – – A security plan Vulnerability test reports Recovery plan Continuity of operation plan Copyright © 2013-2014 Curt Hill Last word on artifacts • In the presentations on the five levels of the EA Cube we have seen many possible artifacts that document the enterprise • This is not the only possible set of artifacts • In any particular EA different documents and diagrams could have been used • The EA team determines what to use – This may be modified as they create and collectCopyright © 2013-2014 Curt Hill