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sink
sink

... The author wish to design techniques and protocols that lead to efficient data aggregation without explicit maintenance of a structure. ...
Computer Networking viva IT-3
Computer Networking viva IT-3

... regardless of whether it is connected to another network or not. Q5 What are the characteristics of the bus topology? A5 In a bus topology, all the communicating equipment is connected through the same cable, or set of cables. Q6 What is star topology A6 Star Topology is the most common type of netw ...
Introduction
Introduction

... • Nodes: PC, special-purpose hardware… – hosts – switches ...
CSC311_UNIT1_Part2
CSC311_UNIT1_Part2

... We use the concept of layers in our daily life. As an example, let us consider two friends who communicate through postal mail. The process of sending a letter to a friend would be complex if there were no services available from the post office. ...
ppt for Chapters 1-5 - Computer and Information Sciences
ppt for Chapters 1-5 - Computer and Information Sciences

... * its own unicast address * the network broadcast address ■ promiscuous mode Interface process all received packets (including those addressed to other stations) ...
Improving Security in Anonymizing Networks using a Privacy Enhancing System
Improving Security in Anonymizing Networks using a Privacy Enhancing System

... [2] Dingledine.R, Mathewson.N, and Syverson.P, “Tor: The SecondGeneration Onion Router,” Proc. Usenix Security Symp, pp. 303320, Aug. 2004. [3] Holt.J.E and Seamons.K.E, “Nym: Practical Pseudonymity for Anonymous Networks,” Internet Security Research Lab Technical ...
dbtma
dbtma

... Stop when completing transmitting RTS BTr (Receiver Busy Tone) Set up by the node which receives RTS Stop when completely receives the data packet All nodes sensing any busy tone are not allowed to send RTS Any node sensing no busy tone is allowed to transmit ...


... a single protocol can't do everything higher-level protocols build elaborate operations out of simpler ones each layer uses only the services of the one directly below and provides the services expected by the layer above all communication is between peer levels: layer N destination receives exactly ...
Why Big Data Needs Big Buffer Switches
Why Big Data Needs Big Buffer Switches

... When many flows pass through a congested switch with limited buffer resources, which packet is dropped and which flow is impacted is a function of whether a packet buffer was available in the precise moment when that packet arrived, and is therefore a function of chance. TCP flows with packets that ...
Glavlit: Preventing Exfiltration at Wire Speed
Glavlit: Preventing Exfiltration at Wire Speed

... prevent unauthorized release from a protected network while allowing authorized information to pass unhindered. Our goals for Glavlit are transparency, performance, and simplicity. Glavlit provides stringent security guarantees by enforcing complex exit policies while trusting only the systems respo ...
Review for midterm
Review for midterm

... Note: s and R are very different quantities! ...
Basic Configuration of WAP4410N
Basic Configuration of WAP4410N

... Enable. Now go to Wireless -> Security and setup an appropriately secure configuration for the secure network. Once that is complete select the Guest Network and setup its security as well. Under Wireless -> VLAN and QoS ensure that VLAN is enabled, that the default VLAN is 1 and that the VLAN for y ...
MetroFi Cupertino - Wireless Internet Institute
MetroFi Cupertino - Wireless Internet Institute

... broadband service led to success Regardless of the business model, the service will be perceived as a partnership by the community – therefore, taking a proactive and collaborative stance will be of mutual benefit and improve the response of the community Agreements between entities need to account ...
Workstar iGuard
Workstar iGuard

... iGuard is an Internet-Ready Security System, and is the first and the only security product in the market that uses TCP/IP as the protocol to communicate with other iGuards and the outside world. The protocol enables the device to directly connect to the corporate network via the existing cable wiri ...
Switching Techniques: Circuit Switching Message Switching packet
Switching Techniques: Circuit Switching Message Switching packet

... Provide initial delay for setting up the call. Inefficient for bursty traffic. Data rate should be same because of fixed bandwidth. When load increases, some calls may be blocked. In data communication, traffic between terminal and server are not continuous. Sometimes more data may come or sometimes ...
How Voice Calls Affect Data in Operational LTE Networks
How Voice Calls Affect Data in Operational LTE Networks

... *University of California, Los Angeles, US +Ohio State University, Columbus, US ...
Network Technologies
Network Technologies

... – Routers performing forwarding/routing in software were slow for large networks ...
Revision Notes - DCU School of Computing
Revision Notes - DCU School of Computing

... – Repeaters - when data travels over long distances, the signal sending the data can weaken over long distances, repeaters are used to amplify the data at intervals – Routers come into play when data is being sent between two different networks. It examines packets for destination and selects the qu ...
Network Performance Troubleshooting
Network Performance Troubleshooting

... In early days of the Internet packet loss usually meant a  packet corruption due to bad links quality, the obvious remedy  was to retransmit ...
AppGate Distributed Device Firewall ™ Protecting user devices and the network
AppGate Distributed Device Firewall ™ Protecting user devices and the network

... on system classes and IP addresses: for example for user workstations and for corporate servers on different networks. Several Policy Managers can also work in parallel. This enables a high degree of redundancy as well as offering load sharing on very large networks. The AppGate Policy Manager is de ...
Comparison and Contrast between the OSI and TCP/IP Model
Comparison and Contrast between the OSI and TCP/IP Model

... not have much experience with the subject and did not have a good idea of which functionality to put in which layer. – Being general, the protocols in the OSI model are better hidden than in the TCP/IP model and can be replaced relatively easily as the technology changes. – Not so widespread as comp ...
Switching Techniques: Circuit Switching
Switching Techniques: Circuit Switching

... Provide initial delay for setting up the call. Inefficient for bursty traffic. Data rate should be same because of fixed bandwidth. When load increases, some calls may be blocked. In data communication, traffic between terminal and server are not continuous. Sometimes more data may come or sometimes ...
Chapter 1
Chapter 1

... information about pathways with other networks. How and when error and system messages are ...
Document
Document

... dissimilar networks. A Backbone is central interconnecting structure that connects one or more networks just like the trunk of a tree or the spine of a human being ...
ppt - People @EECS
ppt - People @EECS

... – Need some way to make sure that packets actually make it to receiver » Every packet received at least once » Every packet received at most once ...
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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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