VB Lecture 1 - American University of Beirut
... – The Packet Switching concept, developed independently by Paul Baran (RAND) and Leonard Kleinrock (MIT). – The Distributed Network architecture, studied by Paul Baran. ...
... – The Packet Switching concept, developed independently by Paul Baran (RAND) and Leonard Kleinrock (MIT). – The Distributed Network architecture, studied by Paul Baran. ...
15-744: Computer Networking
... • Traffic target (multipoint or single destination, mobile or fixed) • Delay sensitivity • Loss sensitivity ...
... • Traffic target (multipoint or single destination, mobile or fixed) • Delay sensitivity • Loss sensitivity ...
Ch. 8 Circuit Switching
... slots in a time-multiplexed stream of data are manipulated to pass data from an input to an output. – All modern circuit switches use digital time division techniques or some combination of space division switching and time division switching. ...
... slots in a time-multiplexed stream of data are manipulated to pass data from an input to an output. – All modern circuit switches use digital time division techniques or some combination of space division switching and time division switching. ...
15-744: Computer Networking
... • Traffic target (multipoint or single destination, mobile or fixed) • Delay sensitivity • Loss sensitivity ...
... • Traffic target (multipoint or single destination, mobile or fixed) • Delay sensitivity • Loss sensitivity ...
Overview of Communications Technologies
... Digital Subscriber Lines DSL uses packet switching technology that operates independent of the voice telephone system, allowing the telephone companies to provide the service and not ...
... Digital Subscriber Lines DSL uses packet switching technology that operates independent of the voice telephone system, allowing the telephone companies to provide the service and not ...
Packet Switching
... each end-end data stream divided into packets user A, B packets share network resources each packet uses full link bandwidth resources used as needed Bandwidth division into “pieces” Dedicated allocation Resource reservation ...
... each end-end data stream divided into packets user A, B packets share network resources each packet uses full link bandwidth resources used as needed Bandwidth division into “pieces” Dedicated allocation Resource reservation ...
Ch. 8 Circuit Switching
... the source node and t1 be the time that the last bit is received at the destination node. – Then let T= t1-t0 be the "end-to-end" delay. – Follow the last bit across the network. – No network layer overhead and little nodal delay. – Ignore any data link protocol delay (U=1). – T = S + L/B + N x D ...
... the source node and t1 be the time that the last bit is received at the destination node. – Then let T= t1-t0 be the "end-to-end" delay. – Follow the last bit across the network. – No network layer overhead and little nodal delay. – Ignore any data link protocol delay (U=1). – T = S + L/B + N x D ...
The following is a list of possible questions for the quiz on May 21th
... #12: What is a protocol (define "network protocol" by providing the three keywords)? A protocol is (1) _________________, (2) ____________________ and (3) ____________. Give two examples of the existing network protocols. #13: What is an interface (define "network protocol" by providing the three ke ...
... #12: What is a protocol (define "network protocol" by providing the three keywords)? A protocol is (1) _________________, (2) ____________________ and (3) ____________. Give two examples of the existing network protocols. #13: What is an interface (define "network protocol" by providing the three ke ...
Artificial Intelligence in Networking: Ant Colony Optimization
... “Good news travels slow, bad news travels fast.” ...
... “Good news travels slow, bad news travels fast.” ...
Computer Networking
... • uses VC : virtual channels – VCI : in the header • provides no retransmissions on a link-by-link basis • provides congestion control on an end-to-end basis • can run over just about any physical layer ...
... • uses VC : virtual channels – VCI : in the header • provides no retransmissions on a link-by-link basis • provides congestion control on an end-to-end basis • can run over just about any physical layer ...
Chapter 1 - William Stallings, Data and Computer
... a dedicated communications path established for duration of communication comprising a sequence of physical links with a dedicated logical channel eg. telephone network ...
... a dedicated communications path established for duration of communication comprising a sequence of physical links with a dedicated logical channel eg. telephone network ...
CPSC 155a Lecture 3
... • Protocols: abstract objects that makeup a layer • Lowest level: hardware specific, implemented by a combination of network adaptors and OS device drivers • IP (Internet Protocol): focal point of the architecture, provides host-to-host connection, defines common methods of exchanging packets • TCP ...
... • Protocols: abstract objects that makeup a layer • Lowest level: hardware specific, implemented by a combination of network adaptors and OS device drivers • IP (Internet Protocol): focal point of the architecture, provides host-to-host connection, defines common methods of exchanging packets • TCP ...
Slide 1
... Should be a tradeoff left to user Depending on application, predictability may not matter ...
... Should be a tradeoff left to user Depending on application, predictability may not matter ...
The Network Layer
... (a) Two Ethernets connected by a switch. (b) Two Ethernets connected by routers. ...
... (a) Two Ethernets connected by a switch. (b) Two Ethernets connected by routers. ...
Web Services Using Visual .NET
... The proposed system would be able to listen to the network and capture packets which are over the network. Further analyze the packets, check for the source and the destination address, check for the protocol, its checksum and much more. Ability to capture packets from both the wired and the wireles ...
... The proposed system would be able to listen to the network and capture packets which are over the network. Further analyze the packets, check for the source and the destination address, check for the protocol, its checksum and much more. Ability to capture packets from both the wired and the wireles ...
The Network Layer
... (a) Two Ethernets connected by a switch. (b) Two Ethernets connected by routers. ...
... (a) Two Ethernets connected by a switch. (b) Two Ethernets connected by routers. ...
Welcome to CS 444/544!
... • The Internet’s primary network-level services (used by network programmers): – Connectionless packet delivery • Break messages up into small chunks (called packets) • Route each packet separately through the network • Reassemble message when all packets reach destination ...
... • The Internet’s primary network-level services (used by network programmers): – Connectionless packet delivery • Break messages up into small chunks (called packets) • Route each packet separately through the network • Reassemble message when all packets reach destination ...
Document
... •Advanced Research Projects Agency initiated project to connect researchers with computers •Adopted new technology: •Packet switching •Internetworking •Resulted in system for remote access to expensive resources ...
... •Advanced Research Projects Agency initiated project to connect researchers with computers •Adopted new technology: •Packet switching •Internetworking •Resulted in system for remote access to expensive resources ...
ppt - NOISE
... – IP relies on connectivity to next hop, access to medium – IP provides a datagram service • Best effort delivery • Packets may be lost, corrupted, reordered, etc. – Layers on top of IP (e.g., TCP) may guarantee reliable, in-order delivery ...
... – IP relies on connectivity to next hop, access to medium – IP provides a datagram service • Best effort delivery • Packets may be lost, corrupted, reordered, etc. – Layers on top of IP (e.g., TCP) may guarantee reliable, in-order delivery ...
Packet switching
Packet switching is a digital networking communications method that groups all transmitted data into suitably sized blocks, called packets, which are transmitted via a medium that may be shared by multiple simultaneous communication sessions. Packet switching increases network efficiency, robustness and enables technological convergence of many applications operating on the same network.Packets are composed of a header and payload. Information in the header is used by networking hardware to direct the packet to its destination where the payload is extracted and used by application software.Starting in the late 1950s, American computer scientist Paul Baran developed the concept Distributed Adaptive Message Block Switching with the goal to provide a fault-tolerant, efficient routing method for telecommunication messages as part of a research program at the RAND Corporation, funded by the US Department of Defense. This concept contrasted and contradicted the heretofore established principles of pre-allocation of network bandwidth, largely fortified by the development of telecommunications in the Bell System. The new concept found little resonance among network implementers until the independent work of Donald Davies at the National Physical Laboratory (United Kingdom) (NPL) in the late 1960s. Davies is credited with coining the modern name packet switching and inspiring numerous packet switching networks in Europe in the decade following, including the incorporation of the concept in the early ARPANET in the United States.