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... Cyber stalking is a very a big issue that not many people understand, and what we don’t know is that 1 out of every 10 people is very muck likely to be the prey of one of these stalkers, which also means me and you. That is why people are organizing campaigns for awareness of Internet safety. As a r ...
ppt
ppt

... App’s using TCP:  HTTP (WWW), FTP ...
Document
Document

... Note 8: Packet Switching Networks (Network Layer Protocols) ...
slides - network systems lab @ sfu
slides - network systems lab @ sfu

... 1.4 Network access and physical media 1.5 Internet structure and ISPs 1.6 Delay & loss in packet-switched networks 1.7 Protocol layers, service models ...
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 ...
ppt - CSE Labs User Home Pages
ppt - CSE Labs User Home Pages

... – Application performance, e.g,. Web download time – Transport performance, e.g., TCP bulk throughput – Network performance, e.g., packet delay and loss ...
Voice over Mobile IP
Voice over Mobile IP

... Network Architecture Laboratory ...
Slides - CERN Indico
Slides - CERN Indico

... • ACL may be in effect on this device to prevent unauthorized use. • ACL very likely to be in effect with respect to incoming traffic from the WAN. – At some sites, this is a path which bypasses firewalls! ...
Review For Exam notes
Review For Exam notes

... Divides packet’s data field into fragments Gives each fragment same Identification tag value, i.e. the Identification tag of original packet  First fragment is given Fragment Offset value of 0  Subsequent fragments get Fragment Offset values consistent with their data’s place in original packet  ...
No Slide Title
No Slide Title

... so each incoming channel is allocated a fixed fraction of the outgoing channel capacity, independent of the data rate on that channel.  By contrast, in SM, the capacity allocated to each incoming channel varies with time, depending on the instantaneous data rate: the higher the rate, the larger the ...
Internet Telephony
Internet Telephony

... • based on H.323 • specifies network architecture, numbering, supplementary services integration ...
Introduction
Introduction

... • Nodes: PC, special-purpose hardware… – hosts – switches ...
slides - network systems lab @ sfu
slides - network systems lab @ sfu

...  No connection set up, simply send  Faster, less overhead  No reliability, flow control, or congestion control ...
stat_ya_gnatushenko_ali_engl
stat_ya_gnatushenko_ali_engl

... The article examines the relationship of the various characteristics of the random process associated with the effect of self-similarity. A simulation of the transfer traffic. The results Hurst parameter estimation by different methods. Keywords: random process, on/off model, traffic, self-similarit ...
Term
Term

... network (PDN) or specified private IP networks. General Packet Radio Service – defined and standardised by ETSI, an IP packet based service for global system for mobile communication (GSM) networks. Global System for Mobile Communication. A 2G mobile wireless networking standard defined by ETSI, GSM ...
Computer Networking
Computer Networking

... activity in Internet governed by protocols protocols define format, order of msgs sent and received among network entities, and actions taken on msg ...
Internet backbone - Computing Science and Mathematics
Internet backbone - Computing Science and Mathematics

... analog audio signal for transfer over a telephone line, and then a modem at the destination converts it back again into data 2. Digital subscriber line (DSL) uses regular copper phone lines to transfer digital data to and from the phone company’s central office 3. Cable modem uses the same line that ...
computer networking
computer networking

... protects the resources of a private network from users from other networks. (The term also implies the security policy that is used with the programs.) • An enterprise with an intranet that allows its workers access to the wider Internet installs a firewall to prevent outsiders from accessing its ow ...
automated generating of processing elements for fpga
automated generating of processing elements for fpga

... and processing of the data by a generic processor. A large number of application-specific integrated circuits (ASIC) that enables data processing at high speeds exist; however, they suffer from such disadvantages as very restricted configuration options and high price when only a small amount of chi ...
Group 13 and 14 Summary of Threats and Defenses Honeynets and
Group 13 and 14 Summary of Threats and Defenses Honeynets and

... Two types: Production Honeypots: alerts user of an attack Research Honeypots: tracks hacker’s actions ...
Enterprise Wireless LAN (WLAN) Management
Enterprise Wireless LAN (WLAN) Management

... • Corporations spend lots of $$ on WLAN infrastructure – Worldwide enterprise WLAN business expected to grow from $1.1 billion this year to $3.5 billion in 2009 ...
Chapter 12
Chapter 12

... achieved through a network interface card (NIC) which fits into a PC’s expansion slot and contains the circuitry necessary for inter-node communications. • A server is used to store the network operating system, application programs, and data to be shared. ...
annual meeting of shareholders confirms corporate
annual meeting of shareholders confirms corporate

... Mönchengladbach. Now, GRENKE will be able to connect as many locations in Europe as required. As soon as an additional location is hooked up, it is able to communicate with all the other locations. As a result, GRENKE communications take place on its own corporate network, which acts just like a net ...
Final Presentation - High Speed Digital Systems Laboratory
Final Presentation - High Speed Digital Systems Laboratory

... networking packets of type UDP, TCP, IP, Ethernet  Full control over UDP and TCP ports should be provided to user of Packet Generator  Full control over IP addresses should be provided to user of Packet Generator  UDP and TCP and IP checksums must be calculated and set in packets headers  A user ...
OIS Model TCP/IP
OIS Model TCP/IP

... • compared with the OSI layering scheme in the following way: • application layer includes the OSI application layer, presentation layer, and most of the session layer • Its end-to-end transport layer includes the graceful close function of the OSI session layer as well as the OSI transport layer • ...
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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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