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CSC 335 Data Communications and Networking I
CSC 335 Data Communications and Networking I

... • Assume arbitrary length message • Assume virtually 100% reliable delivery by network service – e.g. reliable packet switched network using X.25 – e.g. frame relay using LAPF control protocol – e.g. IEEE 802.3 using connection oriented LLC service ...
990107-IOAN-HB
990107-IOAN-HB

... 2.4 Gbps (OC48) among gigaPoPs, increasing to 9.6 Gbps (OC192) Connections at 622 Mbps (OC12) or 155 Mbps (OC3) IP over Sonet technology Access PoPs very close to almost all of the anticipated university gigaPoPs ...
Network Architectures
Network Architectures

... advanced pieces of electronic equipment that measure signal voltage over time • When used with a TDR, an oscilloscope can help identify shorts, sharp bends, or crimps in a cable, cable breaks, and attenuation problems ...
Cross Stratum Optimization
Cross Stratum Optimization

... 79th IETF @ Beijing, China ...
ISO Layer and TCP Fundamentals
ISO Layer and TCP Fundamentals

... • Routers may break packets into smaller chunks (fragmentation) • Destination host is responsible for reassembling all fragments into original packet • Performance impact on modern (ASIC based) routers ...
ECE544Lec7QoSDR06
ECE544Lec7QoSDR06

... traffic, but revenue from first class important to economic base (will pay for more plentiful bandwidth overall) • Not motivated by real-time! Motivated by economics and assurances ...
Proceedings of LISA 2002: 16 Systems Administration
Proceedings of LISA 2002: 16 Systems Administration

... Bandwidth availability is greater than required to perform traffic shaped data synchronization, but the high network utilization afforded from traffic shaping will prevent over design to accommodate peak loads over the low-bandwidth link. Traffic shaping and other IP QoS routing mechanisms specifica ...
Final Report
Final Report

... whose goal is to utilize only the excess network bandwidth as compared to the “fair share” of bandwidth as targeted by TCP. The key mechanisms unique to TCP-LP congestion control are the use of one-way packet delays for congestion indications and a TCP-transparent congestion avoidance policy. We als ...
Communication Networks
Communication Networks

... cellular networks, and Internet. The modern communication networks have the ability to transfer communication at extremely high speeds, which allows users to gather information in large volume nearly instantaneously and, with the aid of computers, to almost immediately exercise action at a distance. ...
Lecture11
Lecture11

... - Interactive TV, IP telephony, on-line gamming (distributed simulations), VPNs, etc ...
ppt
ppt

... OBJECTIVE : Stream rich multimedia content at highest possible quality (user experience) over wired and wireless networks ...
18-07-0026-00 - IEEE 802 LAN/MAN Standards Committee
18-07-0026-00 - IEEE 802 LAN/MAN Standards Committee

... bandwidth and the frame length. Duplexing technology may be independent of the access technology since for example either frequency division duplex (FDD) , time division duplex (TDD) or half-duplex FDD may be used. It also affects band allocations, sharing studies, and cell size.] IMT-Advanced syste ...
18-07-0026-00 - IEEE 802 LAN/MAN Standards Committee
18-07-0026-00 - IEEE 802 LAN/MAN Standards Committee

... bandwidth and the frame length. Duplexing technology may be independent of the access technology since for example either frequency division duplex (FDD) , time division duplex (TDD) or half-duplex FDD may be used. It also affects band allocations, sharing studies, and cell size.] IMT-Advanced syste ...
PowerPoint
PowerPoint

... • How to communicate the remote party’s IP address via the SCN? ...
Implementation of Multi-layer techniques using FEDERICA, PASITO
Implementation of Multi-layer techniques using FEDERICA, PASITO

... imposed an unprecedented traffic growth in telecommunication networks with very high cumulative annual growth rates. An example of this huge traffic growth is the forecast from Cisco [1] that predicts an annual IP traffic over 700 exabytes in 2014, four times higher than in 2009. Current operator ne ...
Multimedia Applications and Internet Architecture
Multimedia Applications and Internet Architecture

... No QoS guarantees - Network conditions such as bandwidth, packet-loss ratio, delay, and delay jitter vary from time to time. ...
Business Data Communications and Networking
Business Data Communications and Networking

... It transfers a series of electrical, radio, or light signals through the circuit from sender to receiver. It specifies the type of connection, and the signals that pass through it. ...
ppt - People
ppt - People

... RcvCount : number of times the pkt is received SendCount : number of times the pkt is sent a and b : are coefficient less than 1: a=0.1, b=0.01 2- vRate decreases exponentially with send/receive events. 3- The pkt is allowed to be transmitted only after: current time + (similar to a back-off system) ...
Resource and Admission Control in NGN Ning Li Co-editor of Y.RACF
Resource and Admission Control in NGN Ning Li Co-editor of Y.RACF

... PE-FE -- Policy Enforcement Functional Entity (PE-FE); TRE-FE -- Transport Resource Enforcement Functional Entity ITU-T/ITU-D Workshop "Standardization and Development of Next Generation Networks" Dar es Salaam, 3-5 October 2006 ...
General
General

... Even if users cannot come up with a mathematical formula, they can express preference of one set of resources over other  These preferences can be codified as utility function Best way to think about utility functions is that they may allow us to come up with a mathematical formulation of the traff ...
Module 6 - ITE technical support
Module 6 - ITE technical support

... Ethernet can use copper and fiber optic cables. Ethernet uses network interface cards, hubs, switches, and routers to connect devices. Wireless networking uses radio waves for sending network data within a local area network. An access point with an integrated router allows wireless clients to commu ...
Network Components
Network Components

...  Low latency: cut-through. Turn ON when errors are low. ...
MRV MR2228N-4C L2/4 Switch
MRV MR2228N-4C L2/4 Switch

... The MR2228N-4C switch offer enhanced data security through a wide range of security features that protect network management and administrative traffic, secure the network from unauthorized users, provide granular levels of network access to users, and track where users are located. Secure Shell (SS ...
slides - TNC15
slides - TNC15

... • It was a peer network of communicating equals not a hierarchical network connecting a mainframe master with terminal slaves. • The approach required coordinating distributed shared state at different scopes, which were treated as black boxes. This lead to the concept of layers being adopted from o ...
6. Next Generation Networks A. Transition to NGN B. Key
6. Next Generation Networks A. Transition to NGN B. Key

... Parlay specifications are being developed by the Parlay Group, a consortium of member companies that include AT&T, BT, Cisco, IBM, Lucent, Microsoft, Nortel Networks, and others. Use of the Parlay specifications is expected to make it easier to add new cross-platform network applications so that use ...
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Quality of service

Quality of service (QoS) is the overall performance of a telephony or computer network, particularly the performance seen by the users of the network.To quantitatively measure quality of service, several related aspects of the network service are often considered, such as error rates, bit rate, throughput, transmission delay, availability, jitter, etc.Quality of service is particularly important for the transport of traffic with special requirements. In particular, much technology has been developed to allow computer networks to become as useful as telephone networks for audio conversations, as well as supporting new applications with even stricter service demands.
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