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Powerpoint - Chapter 1
Powerpoint - Chapter 1

... Lesson 2 Summary: The OSI Reference Model OSI Model Layer ...
Network Topology - Department of Computing
Network Topology - Department of Computing

... hub/switch is restricted based on cable used. ◦ With UTP cable, distance limited to 100m. Popular topology for LAN (local area networks) Adv: Failure of any computer does not affect other communications in the network Disadv: Failure of hub/switch can bring the network down, also called SPF( Single ...
PPP - Chakarov
PPP - Chakarov

... The network layer routing •The switch will allow routing in the local LAN •A packet of information will be forwarded out of a particular interface based on the MAC address of the device attached to it •Routers forward based on the IP address (Network layer) information ...
Student Dormitory Network Usage Regulations
Student Dormitory Network Usage Regulations

... The purpose to establish these regulations is to efficiently manage the dormitory network resources, which provides boarding students with TANet resources. The Student Dormitory Network offers switch ports and wireless connections for students to connect to the campus network. Students have to prepa ...
Network Environments - Advanced
Network Environments - Advanced

... • Before a node sends a message, it must check that the bus isn’t being used – it senses the data carrier • If the bus is not being used, the message can be sent – but two nodes could start at the same time, resulting in a collision of the two messages – the nodes need to detect when this happens an ...
hw3 - OpenLab
hw3 - OpenLab

... these addresses, network switches and routers determine how best to transfer the packet between hops on the path to its destination. Packet switching is the alternative to circuit switching protocols used historically for telephone (voice) networks and sometimes with ISDN connections. Earlier in thi ...
Hardware & Communication
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... Supports Videoconferencing, faxes and voice applications. ...
Presentation: the internet layer, IP, the Internet Protocol
Presentation: the internet layer, IP, the Internet Protocol

... The initial vision: an IP address for every host ...
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Link - Indico
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... for example in RIP routing protocol) or the minimum cost path algorithm where costs are assigned to communication lines in accordance with various criteria: • Delay factor, • Transmission bandwidth, • Reliability and etc. (used for example in the OSPF routing protocol) ...
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... Although the configuration of modern networks has a significant impact on the performance, robustness, and security of applications, networks lack support for reporting these differences. For instance, ISPs that have made investments in high-speed routers, excess network capacity, fault-tolerant top ...
Chapter 1 - Rabie A. Ramadan
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... Circuits have some very attractive properties. » Fast and simple data transfer, once the circuit has been established » Predictable performance since the circuit provides isolation from other users » E.g. guaranteed bandwidth ...
historyInternet
historyInternet

... of California, Los Angeles and the Stanford Research Institute on 22:30 hours on October 29, 1969 • By 1981, the number of hosts had grown to 213 • A new host was being added approximately every twenty days ARPANET became the technical core of “the Internet” ...
PPP - Ivailo Chakarov
PPP - Ivailo Chakarov

... This receives a signal from the network and then repeats it. After a distance an electrical signal will lose power. This node increases the power of the signal again ...
What Is Highly Critical Wireless Networking (HCWN)
What Is Highly Critical Wireless Networking (HCWN)

... A Highly Critical Wireless Network (HCWN) may consist of several interconnected communications devices used to support a critical function. HCWN are commercial wireless systems that use the TCPIP digital protocols, which are beginning to dominate our communications infrastructure and reshape our ind ...
benefits of a connected world
benefits of a connected world

... • Bandwidth - The maximum amount of data that can pass from one point to another in a unit of time • Bit • Bit rate • Modem ...
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Lecture Note

... Modulates a digital signal into an analog signal for transmission via analog medium, then demodulates the signal into digital for receiving. ...
Network Technology and the Internet
Network Technology and the Internet

... A communication channel, or link, is the physical path for signal transmission from one point top another. Noise is any polluting signal. Receiver recovers the data. Bandwidth of a channel is the transmission capacity of a communication channel. Example a fiber optic cable can transmit up to 20 tril ...
Computer Networks - Texas State Department of Computer Science
Computer Networks - Texas State Department of Computer Science

...  Telephone (voice) transmission is primarily analog, but computer data is digital.  A modem modulates and demodulates an analog signal ( or carrier ) to encode digital data.  Bandwidth - capacity of the communication medium ...
slides - IEEE HPSR 2012
slides - IEEE HPSR 2012

... Warehouse-size Computer ...
MPLS-based Virtual Private Networks
MPLS-based Virtual Private Networks

... takes a look at the label and forwards it. This is in contrast to the normal switching where routers look at the IP address of each packet and forward it accordingly. This is how MPLS saves time and make traffic flow faster and smoother. ...
Beyond ad-hoc networking
Beyond ad-hoc networking

Basic Networking Hardware
Basic Networking Hardware

... walls and other non-metal barriers. Roaming users can be handed off from one access point to another like a cellular phone system. Laptops use wireless network cards that plug into an existing PCMCIA slot or that are self contained on PC cards, while standalone desktops and servers use plug-in cards ...
Computer Networks & The Internet
Computer Networks & The Internet

... Data transmission modes • There are 3 modes of transmitting data from one point to another: – Simplex: communication is possible only in one direction. The connected devices in such a system are send-only or receive-only. Example, a terminal (send-only) and printer (receive-only). This type of comm ...
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Computer network

A computer network or data network is a telecommunications network which allows computers to exchange data. In computer networks, networked computing devices exchange data with each other along network links (data connections). The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet.Network computer devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, whether or not they have a direct connection to each other.Computer networks differ in the transmission media used to carry their signals, the communications protocols to organize network traffic, the network's size, topology and organizational intent. In most cases, communications protocols are layered on (i.e. work using) other more specific or more general communications protocols, except for the physical layer that directly deals with the transmission media.Computer networks support applications such as access to the World Wide Web, shared use of application and storage servers, printers, and fax machines, and use of email and instant messaging applications.
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