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Document
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... Internetworking is a schema for connecting various network with different technology  Use both hardware and software  Additional hardware are placed between network  Software is in the computer that is connected with  Connected networking system is called internetwork / internet  Also called as ...
Beyond ad-hoc networking
Beyond ad-hoc networking

...  Terminal diversity increases with devices that today are not generally thought of as Internetcapable, such as tiny and embedded or semi-embedded devices that make their claim for first-class Internet citizenship. Internet-capable nodes become so small and so low-cost and so little power-demanding ...
Networked Systems
Networked Systems

... time  Slotted ALOHA – clocks required at earth and satellite stations are synchronized to send traffic at specific periods Network Operating Systems – software that provides the services of an operating system plus special functions for making computers and devices communicate in a network o Peer-t ...
- Home - KSU Faculty Member websites
- Home - KSU Faculty Member websites

... administrator to provide broadcast containment, and low-level security on the LAN. • Subnet addresses include the Class A, Class B, and Class C network portion, plus a subnet field and a host field. The subnet field and the host field are created from the original host portion of the major IP addres ...
COA2011-6 - KT6144-UKM
COA2011-6 - KT6144-UKM

... ◦ Translate a user friendly address into an IP address and port address for the transport layer ◦ Utilizes a global domain name directory service Address resolution protocol (network layer) ◦ Translates IP addresses into physical addresses MAC (medium-access control) address ◦ Most common type of ph ...
“Cut-outs” (propostas específicas de pesquisa) do Cap 3.
“Cut-outs” (propostas específicas de pesquisa) do Cap 3.

... any spoofing or forgery of source addresses detectable without relying on cumbersome and error-prone manual configuration of egress filters. It would also make route hijacking and other security compromises to inter-domain routing impossible, and would do so without requiring PKIs or third-party cer ...
Document
Document

... it connected computers at four universities: UCLA, UCSB, SRI, and Utah it employed dedicated cables, buried underground the data transfer rate was 56K bits/sec, roughly same as dial-up services today the ARPANet demonstrated that researchers at different sites could communicate, share data, and run ...
document
document

... • A firewall can: – Partition machines into those inside the organization and those outside the organization – Enforce an access control policy about what types of traffic are allowed in and out ...
Curriculum Vitae Luciano Lenzini
Curriculum Vitae Luciano Lenzini

... 1977-1983: Lenzini researched into MAC protocols to access the common channel provided by satellite broadcasting, and designed and directed the international project named STELLA (Satellite Transmission Experiment Linking Laboratories). STELLA was the first European satellite broadcasting packet swi ...
NRENs serving the Health Sector - a possibility if we go for it
NRENs serving the Health Sector - a possibility if we go for it

... YES – We can now manage the increased complexity of the explosion of many types of connections between organizations YES – Trans-national networks can be established with preserved security YES – NRENs are able to choose to provide a broad set of services to the health care sector NO – Network inter ...
Adventures in Computer Security - Applied Crypto Group at Stanford
Adventures in Computer Security - Applied Crypto Group at Stanford

... • Protect server, not ISP • (More about firewalls next lecture) ...
Q2. What Are the Components of a LAN?
Q2. What Are the Components of a LAN?

... Packet-filtering firewalls examine source address, destination address, and other data before allowing message to pass ...
Lesson 7
Lesson 7

... “The computer or computers that stand between trusted networks (such as internal networks) and untrusted networks (such as the Internet), inspecting all traffic that flows between them.”  Firewalls have the following attributes: ...
practice_assignment_networking
practice_assignment_networking

... 20. What is the difference between video streaming and video download? 21. What is the difference between file upload and file download? Name the devices that get involved in uploading or downloading of files. 22. What is meant by a protocol? Why do you need to have protocols? 23. What would you wan ...
Week-2
Week-2

... services. • Information and applications need to be replicated in each computer on the network. • Administration of application becomes difficult when the size of the network increase. • Integrity of replicated information is questionable. ...
Follow this link to lec1e handout
Follow this link to lec1e handout

... technically and should have no bugs or holes. ...
cut-through
cut-through

... What does a switch broadcast to let other switches know of its existence on the LAN? • BPDUs ...
TCP/IP Protocol Architecture - Department of Electrical Engineering
TCP/IP Protocol Architecture - Department of Electrical Engineering

... Actions that are to be taken when a certain event occurs, e.g. sending or receiving messages, expiry of timers The purpose of a protocol is to provide a service to the layer above ...
Networking - bu people
Networking - bu people

... The main difference between computer and all other remaining network is that computer network consist of general purpose programmable hardware and thus can handle different types of data, (e.g. text, image, voice, video), as opposed to being specialized (and optimazed) for a particular type of data ...
AN OVERVIEW OF INTERNET TECHNOLOGIES & THEIR …
AN OVERVIEW OF INTERNET TECHNOLOGIES & THEIR …

... through the network to meet changing customer demand. These components which can switch wavelengths in less than 20 nsec, eventually will additionally be used to route not only optical channels, but also individual data cells or packets, vastly increasing the throughput of data networks and switches ...
Book cover slide
Book cover slide

... communications medium, such as cables, can transfer information. Bandwidth measurement depends on the type of signal (analog or digital) and the media used to carry the information. Type of Signal (analog or digital) + Type of Media = ...
Ch20
Ch20

...  Network can provide sequencing and error control  Packets are forwarded more quickly  No routing decisions to make  Less reliable  Loss of a node looses all circuits through that node  Datagram  No call setup phase  Better if few packets  More flexible  Routing can be used to avoid conges ...
network
network

...  A and B each have pairs of public key and private key: PA, pA, and PB, pB. --Private keys are held by individuals, while public keys are known to the party.  Authenticated receiver: (only B has pB to decrypt the received data)  Authenticated sender: (only A has pA to send that encrypted data) ...
Cross layer design for Wireless networks
Cross layer design for Wireless networks

... Advanced applications like VOIP, Web browsing , multimedia conferences & video streaming demanded ...
4th Edition: Chapter 1 - Universidad de Sevilla
4th Edition: Chapter 1 - Universidad de Sevilla

... explicit structure allows identification, relationship of complex system’s pieces  layered reference model for discussion modularization eases maintenance, updating of system  change of implementation of layer’s service transparent to rest of system  e.g., change in gate procedure doesn’t affect ...
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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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