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4th Edition: Chapter 1
4th Edition: Chapter 1

...  simpler, no call setup excessive congestion possible: packet delay and loss  protocols needed for reliable data transfer, congestion control Q: How to provide circuit-like behavior?  bandwidth guarantees needed for audio/video apps  still an unsolved problem (chapter 7) ...
Goal of VPN
Goal of VPN

... Assumes the Layer-2 tunneling protocol PPTP: • User does remote dial-in to ISP and establishes PPP connection • Establish a (TCP) connection to set up a control channel • Establish a PPTP tunnel • Establish PPP tunnel that sends PPP frames over the PPTP tunnel • IP packets are carried in PPP frames ...
A Low-Power RFID Integrated Circuits for Intelligent Healthcare
A Low-Power RFID Integrated Circuits for Intelligent Healthcare

... recent years, home telecare system (HTS) has been employed for self-examination and biosignal transmission between person and medical center by Internet or wireless communication systems [6]–[9]. However, the HTS is not a mobile observation system of anytime and anywhere for elders and patients. In ...
Network Security Fundamentals
Network Security Fundamentals

... • Campus area network (CAN) - A network connecting any number of buildings in an office or university complex (also referred to as a campus wide area network). • Intranet - A “private” network that is accessible only to authorized users. Many large corporations host an intranet to facilitate informa ...
oneM2M-ARC-2013-0412R01-BRequest_Resource
oneM2M-ARC-2013-0412R01-BRequest_Resource

... • oneM2M-REQ-2013-0260R02 Leveraging Broadcasting/Multicasting Capability of Underlying Networks -- Case of Neighbourhood Alerting on Traffic Accident - This contribution illustrates the case that an automotive telematics service provider alerts Telematics Service Provider vehicles around where a t ...
A Quantitative Analysis of the Gnutella Network Traffic”
A Quantitative Analysis of the Gnutella Network Traffic”

... • Limewire shows that there are averagely 250,000 hosts at any given moment. • They also show that only a small fraction of these hosts accept incoming connections. • GnutellaMeter.com also monitors the network by attaching itself to well positioned peers (i.e. high degree) in the network. They pres ...
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PDF

... ● This enhancement allows for a new load-balancing option when using Link Aggregation Groups (LAGs). The hash calculation is typically dictated by the services configured on the LAG, this feature allows this to be explicitly controlled. In the case where a Layer 2 LAG is defined but the traffic is e ...
7.4 Node-Level Simulators
7.4 Node-Level Simulators

... There are two types of components in nesC, depending on how they are implemented: modules and configurations. Modules are implemented by application code (written in a C-like syntax). Configurations are implemented by connecting interfaces of existing components. The implementation part of a module ...
Overlay networks
Overlay networks

... Alternative:application layer multicast, to control and maintain an efficient overlay for data transmission ...
A Review on Enhancement of Security in IPv6
A Review on Enhancement of Security in IPv6

... The underlying aspect would be to choke victim’s network and thus make it inaccessible by other client. However, there are also different ways of making service unavailable rather than just dumping it with abundant IP packets. The victim could also be attacked at various loopholes making it unstable ...
Tuning and Optimizing Network File System Server Performance
Tuning and Optimizing Network File System Server Performance

... process request of clients quickly and utilizing less CPU processing while read and write process. High performance obtained by reducing read and writes latency and reducing kernel CPU processing during read/writes. For high performance, NFS server and client need to be tuned using a number of optio ...
ET networks for CPS FINAL
ET networks for CPS FINAL

... environmentalists (Andresen and Agrawala, 2002; Engels, 2006; Yamin, 1998). Yet, the envisioned global system embedded in the Kyoto Protocol never materialized, in part because the withdrawal of the United States from the Protocol in 2001 led to significant uncertainty about the future of the treaty ...
A Modular Network Layer for Sensornets
A Modular Network Layer for Sensornets

... addressing, to maximize module replaceability. Other functions of an FE include local delivery when the RE determines that the local node is the destination, hooks for interception of packets for purposes of innetwork aggregation, network level retransmission, and multicast. Finally, the FE may opt ...
Lecture 16
Lecture 16

... • Type – 16-bit flag used to indicate which upper layer protocol gets the frame • Body – variable length area to put the data from LLC ...
Enabling the Interplanetary Internet
Enabling the Interplanetary Internet

... may grow larger than the line-of-sight contact window. For example, the one-way light time between Earth and Mars can range up to 20 min. Contact opportunities lasting less than 40 min cannot exchange a single round-trip datagram. Likewise, when the frequency and duration of link disruption (bad poi ...
How to Lease the Internet in Your Spare Time
How to Lease the Internet in Your Spare Time

... two distinct entities: infrastructure providers and service providers. An infrastructure provider owns and maintains the network equipment (e.g., routers and links) that forms an infrastructure network. A service provider establishes agreements with one or more infrastructure providers for access to ...
Top-Down Network Design
Top-Down Network Design

... • To calculate whether capacity is sufficient, you should know: – The number of stations – The average time that a station is idle between sending frames – The time required to transmit a message once medium access is gained ...
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- HEPiX Services at CASPUR

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Transport Layer Issue in Wireless Ad Hoc and Sensor Networking
Transport Layer Issue in Wireless Ad Hoc and Sensor Networking

... called failed point (FP) ...
Greenhouse gas emissions trading (ET) systems have become the
Greenhouse gas emissions trading (ET) systems have become the

... environmentalists (Andresen and Agrawala, 2002; Engels, 2006; Yamin, 1998). Yet, the envisioned global system embedded in the Kyoto Protocol never materialized, in part because the withdrawal of the United States from the Protocol in 2001 led to significant uncertainty about the future of the treaty ...
Socket Programming - Wichita State University
Socket Programming - Wichita State University

... destination node based on its address • Types of addresses – unicast: node-specific – broadcast: all nodes on the network – multicast: some subset of nodes on the network ...
Document
Document

... • Contract may allow network to delay or discard low-priority packets when necessary ...
Routing in Packet Switching Networks Contd.
Routing in Packet Switching Networks Contd.

... This unit will develop student knowledge of the techniques and systems for network administration. On completion of this unit, the student should have acquired the knowledge needed to identify the tasks or roles required of network administrators, understand current developments and standards for ne ...
Y-Comm: A new architecture for heterogeneous networking
Y-Comm: A new architecture for heterogeneous networking

... – Since the Interface_ID does not change if I do a horizontal handover, it is easier for the network infrastructure to work out what is going on ...
Socket Programming
Socket Programming

... destination node based on its address • Types of addresses – unicast: node-specific – broadcast: all nodes on the network – multicast: some subset of nodes on the network ...
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Network tap

A network tap is a hardware device which provides a way to access the data flowing across a computer network. In many cases, it is desirable for a third party to monitor the traffic between two points in the network. If the network between points A and B consists of a physical cable, a ""network tap"" may be the best way to accomplish this monitoring. The network tap has (at least) three ports: an A port, a B port, and a monitor port. A tap inserted between A and B passes all traffic through unimpeded, but also copies that same data to its monitor port, enabling a third party to listen.Network taps are commonly used for network intrusion detection systems, VoIP recording, network probes, RMON probes, packet sniffers, and other monitoring and collection devices and software that require access to a network segment. Taps are used in security applications because they are non-obtrusive, are not detectable on the network (having no physical or logical address), can deal with full-duplex and non-shared networks, and will usually pass through traffic even if the tap stops working or loses power.
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