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| | MSN Encarta - Network (computer science) |
 | | Network (computer science), a system used to link two or more computers. | | | Network software consists of computer programs that establish protocols, or rules, for computers to talk to one another. | | | Network hardware is made up of the physical components that connect computers. |
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http://encarta.msn.com/encyclopedia_761567995/Network_(computer_science).html
(948 words)
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| | Network topology - Wikipedia, the free encyclopedia |
| | While grid networks have found popularity in high-performance computing applications, some systems have used genetic algorithms to design custom networks that have the fewest possible hops in between different nodes. | | | For example, a tree network connected to a tree network is still a tree network, but two star networks connected together (known as extended star) exhibit hybrid network topologies. | | | Real example =- spanning tree: http://map.efnet.org/ -- Live map of the topology of EFnet, the traditional IRC network |
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http://en.wikipedia.org/wiki/Network_topology#Daisy_chains
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| | Ring network - Wikipedia, the free encyclopedia |
| | For example, if a given ring network has eight computers on it, to get from computer one to computer four, data must travel from computer one, through computers two and three, and to its destination at computer four. | | | A ring network is a topology of computer networks where each node is connected to two other nodes, so as to create a ring. | | | The most popular example is a token ring network. |
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http://en.wikipedia.org/wiki/Ring_network
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| | Lesson 3: Network Topology |
| | This topology originated in the early days of computing when computers were connected to a centralized mainframe computer. | | | Each network has only one token.) The token is passed from computer to computer until it gets to a computer that has data to send. | | | The computers on the network will still be able to function as stand-alone computers; however, as long as the segment is broken, they will not be able to communicate with each other or otherwise access shared resources. |
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http://pluto.ksi.edu/~cyh/cis370/ebook/ch01d.htm
(4355 words)
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| | COMMUNICATIONS Network Topology |
| | A hierarchical network (or a tree network) resembles a star network in that several computers are connected to a central host computer (usually a mainframe). | | | A host computer is usually a large computer such as a minicomputer or a mainframe. | | | In the topology, one or more computers usually become switching centers, interlinking computers with others. |
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http://sunset.backbone.olemiss.edu/~misbook/conetom.htm
(969 words)
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| | Network Topology |
| | This network topology is referred to by many as "the campus backbone." Nearly 20,000 networked computers in UW offices and labs are connected to routers located in one of three routing centers on campus. | | | Some of the most difficult-to-diagnose network problems turn out to be misconfiguration of desktop computers. | | | As network topologies have grown more complicated, limitations of early routing protocols have led to development of more sophisticated approaches. |
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http://www.washington.edu/tech_home/windows/issue17/topology.html
(1441 words)
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| | Network Topology |
| | The network operating system uses a network data protocol to communicate on the network to other computers. | | | Mesh networks ideally allow each computer to have a direct connection to each of the other computers. | | | There are also hybrid networks including a star-bus hybrid, star-ring network, and mesh networks with connections between various computers on the network. |
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http://www.comptechdoc.org/independent/networking/guide/nettopology.html
(429 words)
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| | Define topology - a Whatis.com definition |
| | In the star network topology, there is a central computer or server to which all the workstations are directly connected. | | | In the ring network topology, the workstations are connected in a closed loop configuration. | | | A variation of the ring network topology is known as the Token Ring. |
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http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213156,00.html
(435 words)
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| | Network Topologies |
| | The simplest topology to understand is the Bus. | | | After the last machine on the network, the cable then returns to the first device to form a closed loop. | | | For example, Ethernet networks can be laid out in a Bus, Star, or Tree topology, or any combination of the three. |
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http://www.delmar.edu/Courses/ITNW2313/network.htm
(468 words)
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| | What is network? - A Word Definition From the Webopedia Computer Dictionary |
| | This form of networking is useful for transferring files from a notebook computer to a desktop, transferring files to a new computer, or sharing a printer. | | | topology : The geometric arrangement of a computer system. | | | Outlines the principal networking technologies in general and the various solutions devised to support home networking in particular. |
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http://www.pcwebopedia.com/network.htm
(850 words)
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| | ITNW 2313 - Exploring Network Topologies |
| | Logical topologies have the same names as physical topologies, but keep in mind that the physical topology describes the network you can see, whereas the logical topology describes the network from the viewpoint of the data traveling on the network. | | | The star topology is a popular method of connecting the cabling in a computer network. | | | A network's logical topology is closely related to the mechanism used to manage the way stations access the network. |
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http://www.delmar.edu/Courses/ITNW2313/topology.htm
(2156 words)
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| | An Atlas of Cyberspaces - Topology Maps |
| | It was created using an automatic network discovery tool called Mercator developed as part of the Scan project by Ramesh Govindan, Anoop Reddy and colleagues, at the Information Sciences Institute, USA. | | | The model was created by Jeff Brown, a researcher at MOAT, National Laboratory for Applied Network Research (NLANR), USA, using his Cichlid data visualisation software. | | | It was created by researchers at CAIDA as part of their skitter project. |
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http://www.cybergeography.org/atlas/topology.html
(668 words)
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| | The network topology, data flow and protocols |
| | The static network topology does not imply that all components are required to operate, been located in permanently accessible networks on computers that never crash or reboot. | | | The dynamic topology means that the explicit command from the user interested to view the channel selected from the list activates the selection of push server which may or already is the transmitter for this channel. | | | The push server should be located on the computer that have a convenient access to all local networks where it should broadcast. |
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http://www.ecsl.cs.sunysb.edu/~andrew/VideoServer/videoserver/index/x225.html
(1390 words)
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| | Network Topologies |
| | Topology refers to the way in which the network of computers is connected. | | | Each computer has a network card installed, which directly attaches to the network bus cable via a T-Connector. | | | The above diagram shows a number of computers connected to a Bus cable, in this case, implemented as Thin Ethernet. |
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http://physinfo.ulb.ac.be/cit_courseware/networks/pt2_1.htm
(653 words)
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| | Network Monitoring Tools |
| | Distinct Network Monitor is a software packet capture and network protocol analyzer for Windows that translates complex protocol negotiation into natural language, pinpointing where errors occurred. | | | Nsauditor is a network security scanner that allows to audit and monitor network for possible vulnerabilities,checks methods that a hacker might use to attack it. | | | Network Diagnostic Tool (NDT) a web100 Java applet developed to test the reliablity and operational status of your desktop computer and network connection. |
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http://www.slac.stanford.edu/xorg/nmtf/nmtf-tools.html
(9155 words)
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| | Chapter 5: Topology |
| | The physical topology of a network refers to the configuration of cables, computers, and other peripherals. | | | A consideration in setting up a tree topology using Ethernet protocol is the 5-4-3 rule. | | | It also acts as a repeater for the data flow. |
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http://fcit.coedu.usf.edu/network/chap5/chap5.htm
(718 words)
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| | Communicating Network Topology Information - Gnutella Developers |
| | This method is still usable, but is not fast enough to compute usable network topology snapshots in a reasonnable time (because it requires initiating full Gnutella connections, which involves several roundtrips to perform the header processing). | | | Initially, capturing this topology was performed with more or less success by making use of the Gnutella Ping/Pong messages and other host discovery mechanisms (like global pong caches now obsolete, Gwebcaches, or even today with UHC-capable hosts used for discovering alternate servents) for attempting new connections. | | | This extension should still be considered experimental, and may be replaced by other mechanisms in the future, notably with UDP-based crawlers. |
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http://www.the-gdf.org/wiki/index.php?title=Communicating_Network_Topology_Information
(442 words)
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| | Chapter 4: Cabling |
| | Wireless networks are great for allowing laptop computers or remote computers to connect to the LAN. | | | To help avoid problems with your network, always use the BNC connectors that crimp, rather than screw, onto the cable. | | | In actual fact the maximum segment length is 185 meters. |
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http://fcit.coedu.usf.edu/NETWORK/chap4/chap4.htm
(1303 words)
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| | IT Architect Topologies February 1, 1990 |
| | Because cable connects these scattered computing resources together into a network, your network's topology is also a function of the way in which the cabling is organized, whether it is arrayed in a bus, ring, or star, which are the three basic physical topologies available to LAN designers (see Figure 1). | | | At its basic level, the topology of a network refers to the way in which all of its pieces have been connected. | | | Fortunately, network managers have access to numerous devices, such as switches, bridges, and routers, that divide Ethernets in small segments to mitigate this problem. |
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http://www.itarchitect.com/article/NMG20000727S0011
(1552 words)
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| | The Geography of Cyberspace Directory - Network Topology Maps |
| | A useful collection of old maps of computer networks, from the early 1990s collected by the Technical University of Berlin. | | | Rocketfuel: An ISP Topology Mapping Engine, Department of Computer Science and Engineering, University of Washington. | | | A large store of network maps at UUNET Technologies. |
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http://www.cybergeography.org/topology_maps.html
(350 words)
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| | Initial Interdomain Network Topology > Introduction |
| | The SSM network scenario used in this chapter is based on the hypothetical interdomain ISP network scenario described in Chapter 2, "Implementing Interdomain Multicast Using MSDP." Figure 6-1 shows the logical connections of the initial interdomain multicast network topology. | | | Take a look at a detailed example of an ISP customer within an interdomain multicast network implemented SSM in its network using URD, and learn the three ways to implement SSM in an interdomain environment. | | | The solution presented in this document is based on a hypothetical interdomain ISP environment. |
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http://www.ciscopress.com/articles/article.asp?p=28471
(555 words)
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| | Maps to Market Your Network - Mappa.Mundi Magazine - Map of the Month |
| | In the frenetic world of Internet infrastructure provision UUNET's network is growing at a thousand percent a year and links and nodes are added and upgraded all the time. | | | In this respect, the use of real-world geography provides an important, familiar template on which to draw the network topology. | | | It is important to realise that the maps are an abstraction from reality, they summarise much of the messy complexity of network infrastructure in ordered looking maps. |
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http://mappa.mundi.net/maps/maps_012
(1208 words)
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| | The Network Simulator ns-2: Topology Generation |
| | The package consists of sgb2hierns.c (the converter file) and example files t1000-0.gb (sgb file for 1000 nodes transit-stub) and hts1000.tcl (hierarchical topology converted from t1000-0.gb). | | | In order to use the scenario generator you would need the revised sgb2comns, which is also included in the sgb2ns distribution. | | | Below is given an example taken from test-suite.tcl from ns/tcl/ex directory. |
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http://www.isi.edu/nsnam/ns/ns-topogen.html#tiers
(576 words)
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| | Dynamic |
| | By means of an intuitive user interface, Amerigo enables network administrators to build and populate ovw maps based on attributes such as device type, vendor, agent, or location, and then publish these maps to network operators. | | | Repeatable network topology rebuild reduces work after scratching and rediscovering the OpenView NNM database. | | | Graphical folder/branch interface makes it easy to build topology levels in a network map |
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http://www.tavve.com/dynamic.asp?id=41
(425 words)
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| | IMUNES - Integrated Network Topology Emulator / Simulator |
| | The concept of using virtual nodes inside a kernel for fast network emulation is not entirely new, yet previously published work generally advocated the implementation of kernel-level virtual nodes with capabilities limited to only certain simple functions, such as passing of network frames from one queue to another based on a static precomputed path. | | | We are developing a network emulation framework based on the FreeBSD operating system kernel partitioned into multiple lightweight virtual nodes, which can be interconnected via kernel-level links to form arbitrarily complex network topologies. | | | As invaluable tools in networked and distributed systems research, network emulators offer a viable alternative to live experimental / testbed networks. |
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http://www.tel.fer.hr/imunes
(477 words)
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| | Network restoration plan regeneration responsive to network topology changes (US6061735) |
| | Parallel computer system using properties of messages to route them through an interconnect network and to select virtual channel circuits therewithin | | | Deterministic selection of an optimal restoration route in a telecommunications network | | | System and method therefor of estimating optimal spare capacity for a distributed restoration scheme |
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http://www.delphion.com/details?pn=US06061735__
(401 words)
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| | Guide to network topology - how computers get connected |
| | Powerline networking has also recently made an appearance, but is very expensive - about $125+ per computer. | | | Support: In terms of industry support for home networking ranging from drivers for different OS's, the availability of bridges and routers, and the support the industry has for using this technology as a home network solution. | | | Guide to network topology - how computers get connected |
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http://www.homenethelp.com/network/index.asp
(761 words)
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| | ARCnet installation |
| | The Combined Star and Bus Topology Network refers to the network layout using the low-impedance and high- impedance ARCnet network cards on the same network. | | | While the ARCnet has been designed for maximum flexibility and ease of installation, the installation rules for a bus topology network layout using high-impedance network cards must be borne in mind and are detailed below: | | | While the ARCnet has been designed for maximum flexibility and ease of installation, the installation rules for a star topology network layout using low-impedance network cards must be borne in mind and are detailed below: |
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http://cs.uni-bonn.de/info5/system/arcnet.html
(965 words)
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| | Project Octopus: Network Topology Discovery |
| | This is extremely important when making decisions to troubleshoot problems and add new hardware to an existing network. | | | Currently work is being done to determine the Internet backbone's topology. | | | The people currently working in this project are (in alphabetical order) : |
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http://www.cs.cornell.edu/cnrg/topology_aware/topology
(164 words)
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| | Network Topology |
| | Each compute node is named starting from 1; the head node ( | | | Internal machines are given a domain name of | | | Terraflop is designed as a simple internal network with one uplink to the College net (and hence the world). |
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http://thermal.gg.utah.edu/facilities/cluster/node4.html
(212 words)
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| | Definition: network topology |
| | For example, a tree network connected to a tree network is still a tree network. | | | bus topology: A network topology in which all nodes, i.e., stations, are connected together by a single bus. | | | tree topology: A network topology that, from a purely topologic viewpoint, resembles an interconnection of star networks in that individual peripheral nodes are required to transmit to and receive from one other node only, toward a central node, and are not required to act as repeaters or regenerators. |
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http://www.its.bldrdoc.gov/fs-1037/dir-024/_3535.htm
(547 words)
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| | MeshDynamics-- Managing Mesh Network Topology |
| | Section 1 shows the network configured in order to optimize latency, that is, in order to minimize the total number of hops that packets will need to make. | | | Managing the dynamics of wireless networks requires a distributed control system approach - to judge network conditions correctly at each node of the network and make adjustments to both traffic flow and the overall topology of the mesh network. | | | Managing Mesh Topology: Wired networks are relatively impervious to changes in the environment - the bandwidth of an Ethernet "pipe" is not affected by radio interference, people moving about or the presence of metallic objects. |
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http://www.meshdynamics.com/wControlLayer.html
(935 words)
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| | AntiOnline - Network topology??? |
| | I don't believe in anarchy.If you're not smart enough to beat the system it's your problem. | | | From what I understand, if a node fails, it's pretty easy to determine where the failure occurred (i.e. | | | Well with the ring topology you're 100% that there will be no collision because the device as to wait for the token to send data |
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http://www.antionline.com/showthread.php?s=&threadid=236249
(843 words)
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| | Webopedia: Network Topologies |
| | You are in the: Small Business Computing Channel | | | How different nodes in a network are connected to each other and how they communicate are determined by the network's topology. | | | Devices are connected with many redundant interconnections between network nodes. |
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http://www.webopedia.com/quick_ref/topologies.asp
(160 words)
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| | RedIRIS - Network Services |
| | Additional information related to RedIRIS Network Services is available in | | | Constant development of network topology and capacity depends on necessities, costs racionalization and budget limitations. | | | This network has a multicast connection with GÈANT. |
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http://www.rediris.es/red/index.en.html
(366 words)
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| | LinuxPlanet - Tutorials - Routing NetBIOS with Linux - Introduction |
| | It's possible to configure a Linux machine to do NetBIOS forwarding, which will enable us to get the Network Neighborhood working across masqueraded networks. | | | If you can access a machine on a different, masqueraded network using UNC naming, e.g. | | | Friday, October 29, 1999 05:59:12 AM The Microsoft Network Neighborhood relies on an underlying technology called "NetBIOS over TCP/IP" to work. |
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http://www.linuxplanet.com/linuxplanet/tutorials/1159/1/screenshot829
(116 words)
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| | Net Access Network Map - Net Access Corporation |
| | You can also download our network map in Portable Document Format (pdf) — file size 66k. | | | To view and print this file, you may need to install the free Adobe Acrobat Reader. | | | Our network also supports local POPs in the following states: Connecticut, Massachusetts, New York, New Jersey, Pennsylvania, Virginia and Washington D.C. Below is a list of peers from several Public Exchange Points: |
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http://www.nac.net/networkmap.asp
(123 words)
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| | AlpineWeb.com · Hosting · Network Connections |
| | The network features OC12, OC3, and DS3 links, as well as Cisco 12000 series gigabit switch router technology, which connect the national exchange points and Verio access points. | | | Keynote Systems consistently ranks the Verio National Network as one of the fastest Internet backbone networks. | | | Verio's global Tier-1 backbone is constantly monitored by Verio's network operations center. |
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http://alpineweb.com/hosting/network
(431 words)
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| | SWITCH - Maps - National |
| | SWITCHlan provides access to the research networks worldwide as well as to the commodity Internet for all Swiss universities, two federal institutes of technology and the major research institutes. | | | Through use of leading edge WDM (wavelength division multiplexing) technology SWITCH is able to provide a very high speed and stable network service to the Swiss academic and research organizations. | | | While most sites are connected to SWITCHlan with Gigabit Ethernet or even 10 Gigabit Ethernet, some organizations still get access to SWITCHlan through the VPN service of Cablecom or through leased lines. |
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http://www.switch.ch/network/national.html
(150 words)
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| | Beowulf Cluster: Network Topology |
| | Therefore, although cluster network traffic passes through the login machine, the application server maintains an independent connection to the external campus network. | | | The application server is a shared resource that serves both the cluster and the Linux desktops within the Department of Chemical Engineering. | | | Our cluster employs a simple single subnet, 2-layer network topology. |
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http://beowulf.cheme.cmu.edu/hardware/network.html
(104 words)
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| | Network Topology |
| | How Network Topology Affects Dynamic Load Balancing PandDT Abstract | | | Work Network Topology Identix IT Security See It Network Topology Discovery | | | Automatically Selecting a Close Mirror Based on Network Topology |
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http://www.trinity.wa.edu.au/plduffyrc/subjects/it/network.htm
(94 words)
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