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Towards secure European telecommunication networks - Celtic-Plus
Towards secure European telecommunication networks - Celtic-Plus

... The new SASER system will allow more security in the network that will become less vulnerable to unauthorized procurement of information. The new technology will provide an increased bandwidth of existing networks and will help to cope with the increasing use of the Internet that doubles its capacit ...
kickoff0598 - BNRG - University of California, Berkeley
kickoff0598 - BNRG - University of California, Berkeley

... – A lower cost, more flexible core network can be built using full packet-switching techniques – Delay sensitive and delay insensitive flows are easier to support at the same time in a full packet-switching architecture – Processing embedded in the network enables more rapid deployment of new kinds ...
3rd Edition: Chapter 2
3rd Edition: Chapter 2

...  centralized server: finding address of remote party  client-client connection: direct (not through server) Instant messaging  chatting between two users is P2P  centralized service: client presence location • user registers its IP address with central server ...
Standards for multimedia communications
Standards for multimedia communications

... • Unlike the H.322 standard which relates to LANS that offer a guaranteed bandwidth/QoS, the H.323 standard is intended for use with LANs that provide a nonguaranteed QoS which, in practice, applies to the majority of LANs. • The standard comprises components for the packetization and synchronizatio ...
PDF with Solutions
PDF with Solutions

... In general, we benefit from a multi-threaded approach in decryption and encryption when we perform multiple independent operations: having multiple resources allows us to allocate them in different tasks using independent threads. For example, while a thread is decrypting, using most of the CPU reso ...

 COS
461:
Computer
Networks
 Midterm
Review Spring
2011


 COS
461:
Computer
Networks
 Midterm
Review Spring
2011


... –  C
knows
it s
transmission
will
not
interfere
with
A
 –  C
is
safe
to
transmit
to
D
 ...
Week10_2
Week10_2

... • When an IP packet arrives, the router checks its routing table to find the longest match. • Match means anding the IP address with the network address mask (1111…10000), and check if the result is the same as the network address. ...
Internet Protocols
Internet Protocols

... bits for the host field, however, so the number of hosts per network may be a limiting factor. ...
Quality of services solution for efficient communication within a distributed urban traffic control system Ana Maria Nicoleta Mocofan, Răzvan Ghiţă, Vicente Ramón Tomás López, Florin Codruţ Nemţanu
Quality of services solution for efficient communication within a distributed urban traffic control system Ana Maria Nicoleta Mocofan, Răzvan Ghiţă, Vicente Ramón Tomás López, Florin Codruţ Nemţanu

... This paper presents a proposal to solve some congestion problems in the data and information exchange. The solution is based on the classification of the traffic parameters in order to guarantee that the most important parameters reach the destination before the rest. The present paper is structured ...
PERSEUS CSP Communication Services Platform
PERSEUS CSP Communication Services Platform

... those communication technologies having the necessary capabilities (e. g. voice and messages are shared by all technologies; but images and video are not shareable among all of them). So, an application can serve distributed users within different communication systems but belonging to a unique netw ...
introconcepts2
introconcepts2

... • Processing can happen anywhere, so that bottlenecks can be eliminated • Machines can be dedicated/optimized for different kinds of processing • Can start with everything on one machine, but add machines as load grows • Needs TCP/IP network protocol ...
10 pts - ECSE - Rensselaer Polytechnic Institute
10 pts - ECSE - Rensselaer Polytechnic Institute

... Multibit feedback schemes allow fine grained control of the operating point in the network by explicitly providing the senders with rates they should send traffic at. FEC integration provides robust error recovery and reduces the need for retransmissions over lossy wireless links. Together these sch ...
1. DIGISCENT 2. TYPES OF NETWORK 3. NETWORK
1. DIGISCENT 2. TYPES OF NETWORK 3. NETWORK

... routers have 56K or T1 CSU/DSUs build into them. Wireless Access Point - A Wireless Access Point is a radio frequency transceiver which allows your wireless devices to connect with your home network and to the internet. A wireless access point will support up to 32 wireless devices. The data rate th ...
Information Security
Information Security

... network from network, application and hybrid attacks Understands state to pinpoint exactly where an attack can be perpetrated and only look there Ability to define a response action in the rulebase for ...
Chapter 7
Chapter 7

... How do I avoid online intrusions? • An intrusion is any access to data or programs by hackers, criminals, or other unauthorized persons – Access can be gained through an open port. A port is any pathway of data in or out of a computer – Port scanning software looks for unprotected computers and can ...
Chapter07.pdf
Chapter07.pdf

... How do I avoid online intrusions? • An intrusion is any access to data or programs by  hackers, criminals, or other unauthorized persons – Access can be gained through an open port.  A port is any  pathway of data in or out of a computer – Port scanning software looks for unprotected computers  and ...
OSI Model
OSI Model

... Each layer communicates with the same layer’s software or hardware on other computers. The lower 4 layers (transport, network, data link and physical —Layers 4, 3, 2, and 1) are concerned with the flow of data from end to end through the network. The upper four layers of the OSI model (application, ...
3rd Edition: Chapter 4
3rd Edition: Chapter 4

... transferred. lower red packet is blocked ...
NAME: Computer Science 461 Midterm Exam March 30, 2009
NAME: Computer Science 461 Midterm Exam March 30, 2009

... Show your work for all problems. Partial credit will often be given. "I pledge my honor that I have not violated the Honor Code during this examination.'' ...
The Internet - The University of Tennessee at Martin
The Internet - The University of Tennessee at Martin

... A network that uses technology designed to span a small geographic area. For example, an Ethernet is a LAN technology suitable for use in a single building. LAN’s can be “bridged” together to allow multiple buildings to be on the same LAN, but a LAN cannot span for much more than a few thousand feet ...
Introduction
Introduction

... and 3rd packet is at R1 at this time • Following this logic, the last packet makes it to D at time 5002 16 ms = 5.002 sec as opposed to 15 seconds ...
Introduction - Department of Computer Engineering
Introduction - Department of Computer Engineering

... and 3rd packet is at R1 at this time • Following this logic, the last packet makes it to D at time 5002 16 ms = 5.002 sec as opposed to 15 seconds ...
First
First

... Router Lect-1: Introduction ...
IP Routing
IP Routing

... 192.168.13.255. Compared to traditional class-based networking, 192.168.12.0/23 represents an aggregation of the two Class C subnets 192.168.12.0 and 192.168.13.0 each having a subnet mask of 255.255.255.0. In other words, ...
Wired and Wireless Network_L2_Teacher_Powerpoint
Wired and Wireless Network_L2_Teacher_Powerpoint

... The internet as a worldwide collection of computer networks: • DNS (domain name server) • Hosting • The cloud • The concept of virtual networks ...
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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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