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Introduction
Introduction

...  Topology or bandwidth changes, congestion  Rapid convergence of routers to consistent set of routes ...
01.1-Overview
01.1-Overview

... NOTES: (1) Internet Usage and World Population Statistics are for December 31, 2011. (2) CLICK on each world region name for detailed regional usage information. (3) Demographic (Population) numbers are based on data from the US Census Bureau and local census agencies. (4) Internet usage information ...
Chapter 2 Networking Standards and the OSI Model
Chapter 2 Networking Standards and the OSI Model

... converting the packets/datagrams into frames, the MAC sublayer converts the frames into bits, which the Physical layer can put on the wire. These steps are known as data encapsulation. When the bits stream arrives at the destination, the process is reversed and each layer will remove their correspon ...
Mobile Health Communication Infrastructure
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... How to deal with traffic management in the MobiHealth infrastructure? ...
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... means delivery not only from one computer to the next but also from a specific running program to specific running program. The transport layer header must therefore include a type of address called a service-point address (or port address). The network layer gets each packet to the correct computer ...
Chapter 2 Network Models 2.1
Chapter 2 Network Models 2.1

... Physical Layer Data Link Layer Network Layer Transport Layer Session Layer Presentation Layer Application Layer ...
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...  If channel sensed idle: transmit entire frame  If channel sensed busy, defer transmission ...
Expanded Notes: Network Monitoring Parts 1 and 2
Expanded Notes: Network Monitoring Parts 1 and 2

... information to system administrators. This permits there to be separation between the software that generates the message, the storage of that message, and the software that analyzes the generated message. This separation of function allows Syslog to be highly configurable and has also allowed it to ...
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United States Department of the Army Cisco Past Performance
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... This proposal includes data that shall not be disclosed outside of FTC and shall not be duplicated, used, or disclosed, in whole or in part, for any purpose other than to evaluate this proposal. If, however, a contract is awarded to Exalt, FTC shall have the right to duplicate, use, or disclose the ...
A Summary of the Publications Which Use the Data from SUVnet
A Summary of the Publications Which Use the Data from SUVnet

... for Localization in Mobile Networks – Con’d • A general framework and Three novel localization schemes were developed then for mobile networks. – For mobile sensors have no built-in GPS and need to be localized by the algorithms. There are anchor nodes that are equipped with built-in GPS and known l ...
Computer Network Security Protocols and Standards
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... applications requiring secure communications. On the other hand, S-HTTP has its data passed in named text fields in the HTTP header. – Finally in terms of distribution and acceptance, history has not been so good to S-HTTP. While SSL was released in a free mass circulating browser, the Netscape Navi ...
Backbone Networks, MAN, WAN
Backbone Networks, MAN, WAN

... voice and data traffic over WANs. It is also used in backbone networks. In the WAN, ATM almost always uses SONET as its hardware layer. An ATM gateway is needed to convert TCP/IP and Ethernet frames into ATM cells and then converts them back once they have reached their destination network. The tran ...
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Application Layer Functionality and Protocols
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...  Describe how a switch can eliminate collisions, backoffs and re- transmissions, the leading factors in reduced throughput on a hub-based Ethernet network ...
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New technical problems in 5G

... COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ...
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... performance The RFDPI engine is designed from the ground up with an emphasis on providing security scanning at a high level of performance, to match both the inherently parallel and ever-growing nature of network traffic. When combined with 24-, 32-, 48- or 96-core ...
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... • A wide area network (WAN) is one that offers networking services over a long distance, such as between cities, states, or countries • There are several interrelated elements that can be used to determine the intersection of a LAN with a WAN • One element is that the network topology may change bet ...
Wide Area Networks
Wide Area Networks

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Selective Bit-error Checking at the MAC Layer for Voice Over Mobile
Selective Bit-error Checking at the MAC Layer for Voice Over Mobile

... (WLAN) wherein mobile nodes can communicate with one other without relying on any pre-existing infrastructure. In a MANET, all the mobile nodes have equal capabilities and operate not only as hosts but also as network routers. Communication links might be broken and a dynamic routing protocol is nee ...
group6
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... Algorithm: A modified version of the Distance Vector Table is being used which efficiently calculates the shortest path to the host which has the required contents Scalability: The method employed can be extended by using the unused bits of the IP address making the system scalable Latency: The meth ...
Network Security
Network Security

... • IP spoofing: – IP packets are not authenticated in any way. – An attacker can place any IP address as the source address of an IP datagram, so can be dangerous to base access control decisions on raw IP addresses alone. – An attacker may be able to replay, delay, reorder, modifiy or inject IP data ...
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Deep packet inspection

Deep Packet Inspection (DPI, also called complete packet inspection and Information eXtraction or IX) is a form of computer network packet filtering that examines the data part (and possibly also the header) of a packet as it passes an inspection point, searching for protocol non-compliance, viruses, spam, intrusions, or defined criteria to decide whether the packet may pass or if it needs to be routed to a different destination, or, for the purpose of collecting statistical information. There are multiple headers for IP packets; network equipment only needs to use the first of these (the IP header) for normal operation, but use of the second header (TCP, UDP etc.) is normally considered to be shallow packet inspection (usually called Stateful Packet Inspection) despite this definition.There are multiple ways to acquire packets for deep packet inspection. Using port mirroring (sometimes called Span Port) is a very common way, as well as an optical splitter.Deep Packet Inspection (and filtering) enables advanced network management, user service, and security functions as well as internet data mining, eavesdropping, and internet censorship. Although DPI technology has been used for Internet management for many years, some advocates of net neutrality fear that the technology may be used anticompetitively or to reduce the openness of the Internet.DPI is used in a wide range of applications, at the so-called ""enterprise"" level (corporations and larger institutions), in telecommunications service providers, and in governments.
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