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XML: Part
XML: Part

... IEEE 80211 Standards • A WLAN shares same characteristics as a standard data-based LAN with the exception that network devices do not use cables to connect to the network • RF is used to send and receive packets • Sometimes called Wi-Fi for Wireless Fidelity, network devices can transmit 11 to 108 ...
INET01 - BNRG - University of California, Berkeley
INET01 - BNRG - University of California, Berkeley

... A New Kind of Services-Enabled Internet • Push services towards edges: caches, content distribution, localization • Construct service networks from third parties or confederations: greater support among mobile operators than conventional ISPs • Manage redirection, not routes: key to service-level p ...
Slide 1
Slide 1

... up to 10,000 persistent connections • User lookup cache can handle hundreds of thousands of different users • URL categorisation ~50,000 transactions per second (2.5GHz x64 AMD core) ...
View File - University of Engineering and Technology, Taxila
View File - University of Engineering and Technology, Taxila

... communication networks easy  Competition among providers of transmission facilities reduced the cost of data circuits ...
No Slide Title
No Slide Title

... Preliminary Findings • Feasible to implement/use CP in real system • Pricing better utilizes existing resources, reduces congestion • CP is better than other pricing policies • Based on surveys, users prefer CP to flat rate pricing if its average rate is lower – Service providers can better utilize ...
• Communication: transfer of information between entities
• Communication: transfer of information between entities

... Protocols can quickly become very complicated (and thus incorrect) Solution: Modularity - implement functionality with several protocols with “clean” interfaces between implementations of the different protocols. Layering is a popular way of structuring such a family of network protocols. Each layer ...
Multimedia Internet Broadcasting and Distributed Conferencing
Multimedia Internet Broadcasting and Distributed Conferencing

... to fit a variety of applications. ...
ECE537-Class 1_2009 - Worcester Polytechnic Institute
ECE537-Class 1_2009 - Worcester Polytechnic Institute

... First generation routers: • traditional computers with switching under direct control of CPU •packet copied to system’s memory • speed limited by memory bandwidth (2 bus crossings per datagram) Input Port ...
Integrated Services
Integrated Services

... EMAIL: address user PHONE: number for user LOC: location of user, application specific TOOL: name of application/tool NOTE: transient messages from user PRIV: application-specific/experimental use ...
ECE544_Review
ECE544_Review

... • PIM-SM (Sparse Mode), or just PIM - instead of directly building per-source, shortest-path trees: – initially builds a single (unidirectional) tree per group , shared by all senders to that group – once data is flowing, the shared tree can be converted to a persource, shortest-path tree if needed ...
What is NRTS – technical description
What is NRTS – technical description

... Supports connections from roadside cameras to CCTV monitors. Service provides anywhere to anywhere and one to many connectivity i.e. a single camera can be viewed in any RCC/NTCC or 3rd party location concurrently. All existing HA cameras will be transferred to this service by Dec 07 ...
Chapter 1 Computer Basics
Chapter 1 Computer Basics

... Connecting Devices The Internet and TCP/IP Protocol Security ...
T - Intel
T - Intel

... Multi-hop architecture for fixed wireless networks  Start with a large cell; as nodes increase split into (higher rate) smaller cells  Multi-hop wireless path to wireline gateway ...
Document
Document

... mode: set up secure connection between two end hosts  Protected even on internal networks  Must install IPsec software on stations, but default in current OSs (Windows, Linux, UNIX). ...
PPT - Winlab
PPT - Winlab

... Multi-hop architecture for fixed wireless networks  Start with a large cell; as nodes increase split into (higher rate) smaller cells  Multi-hop wireless path to wireline gateway ...
Plutarch
Plutarch

... Plutarch is by no means the be-all-end-all solution! There may be a general purpose protocol that solves all these problems. However, if that is the case, we would expect that it would emerge within Plutarch and grow to make all other contexts redundant. ...
notes
notes

... • Circuit switching – physical path set up from source to destination before any data transmitted, e.g., phone system – Adv: no congestion problem, only delay is propagation time – Disadv: unused bandwidth on allocated circuit is wasted ...
International Telecommunication Union
International Telecommunication Union

... - Design goals and high level requirements: • Scalability (routing architecture, multi-homing) • Naming & addressing scheme (separation of user identifier & device locator) • Security & QoS (including Privacy, Authentication) • Mobility (seamless mobility of devices, services, users; network-based m ...
History of Data Compression
History of Data Compression

... Acknowledged mode is similar to modem operation using V.42 error correction procedures in that packets are partitioned, as necessary, into segments that are transmitted to the peer over a reliable link and acknowledged by the peer. If the peer does not correctly receive a segment, it is re-transmitt ...
Networks and the Internet
Networks and the Internet

... File Transfer Protocol (FTP)—directory and file manipulation Telnet—remote terminal emulation Simple Mail Transfer Protocol (SMTP)— the basis for Internet e-mail Simple Network Management Protocol (SNMP)—reports management data Hypertext Transfer Protocol (HTTP)— the World Wide Web ...
200370 Exam Solution
200370 Exam Solution

... called ________encapsulation_____________. 16. A ________connection oriented____________ network application provides some guarantee that information traveling through the network will not be lost and the information packets will be delivered to the intended receiver. 17. The ________Internet_______ ...
Diapositive 1
Diapositive 1

... Set of protocols (Layer 3 of OSI model) using algorithms allowing the transport of secured data over an IP network The purpose of this protocol: authenticate and encrypt the data The stream can only be understood by the final recipient (encryption) Modification of data through intermediaries may not ...
Privacy and Security on Internet: Virtual Private Networks
Privacy and Security on Internet: Virtual Private Networks

... Encryption ensures data privacy by allowing data to be decrypted and read by only the intended parties. In a private-key encryption or symmetric-key encryption ([2]), each computer has a secret key (code) that it uses to encrypt a packet of information before it is sent over the network to another c ...
SkyMesh™ 1/2/4200 Series Satellite Router Terminal
SkyMesh™ 1/2/4200 Series Satellite Router Terminal

... larly suitable for real me traffic such as voice and mul ‐ cas ng videoconference. When used in Networking Mode, SkyMesh™ smart termi‐ nals feature high performance simultaneous links to mul ‐ ple sites including network hub, remotes, and remote cen‐ ter sites located at end user headquarters. The abi ...
Understand Computer Network V
Understand Computer Network V

... Protocols at the Application, Presentation, and Session Layers • The first three layers of the OSI model are handled by the protocol specific to the application using it and are best treated as a single group rather than unique layers. • Web browsers, e-mail, chat rooms, and FTP software are exampl ...
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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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