Internetworking
... consider what happens when host Hl sends a datagram to host H8 assuming that the MTU is 1,500 bytes for the two Ethernets, 4,500 bytes for the FDDI network, and 532 bytes for the point-to-point network a 1,420-byte datagram (20-byte IP header plus 1,400 bytes of data) sent from H1 makes it acr ...
... consider what happens when host Hl sends a datagram to host H8 assuming that the MTU is 1,500 bytes for the two Ethernets, 4,500 bytes for the FDDI network, and 532 bytes for the point-to-point network a 1,420-byte datagram (20-byte IP header plus 1,400 bytes of data) sent from H1 makes it acr ...
Switching and Forwarding
... identifier, making the per-packet header overhead small. • If a switch or a link in a connection fails, the connection is broken and a new one needs to be established. ...
... identifier, making the per-packet header overhead small. • If a switch or a link in a connection fails, the connection is broken and a new one needs to be established. ...
4th Edition: Chapter 1
... If you use these slides (e.g., in a class) in substantially unaltered form, that you mention their source (after all, we’d like people to use our book!) If you post any slides in substantially unaltered form on a www site, that you note that they are adapted from (or perhaps identical to) our sl ...
... If you use these slides (e.g., in a class) in substantially unaltered form, that you mention their source (after all, we’d like people to use our book!) If you post any slides in substantially unaltered form on a www site, that you note that they are adapted from (or perhaps identical to) our sl ...
How to Make Devices Communicate in a Wireless World
... Changing the Rules of the Road – How to Make Legacy Devices Communicate in A Wireless World The Ford Model T started rolling off the assembly line in 1908. If you’d purchased one you would have found yourself sharing the right of way with Stanley steam cars, battery-powered Baker coupes, horses and ...
... Changing the Rules of the Road – How to Make Legacy Devices Communicate in A Wireless World The Ford Model T started rolling off the assembly line in 1908. If you’d purchased one you would have found yourself sharing the right of way with Stanley steam cars, battery-powered Baker coupes, horses and ...
View
... Both stations can transmit and receive simultaneously. ( telephone network) Like two way street with traffic flowing in both directions at the same time Signals going in either direction share the capacity of the link in two ways: Either the link must contain two physically separate transmis ...
... Both stations can transmit and receive simultaneously. ( telephone network) Like two way street with traffic flowing in both directions at the same time Signals going in either direction share the capacity of the link in two ways: Either the link must contain two physically separate transmis ...
... it helps the network cope with node dynamics (mobility, failures), consider the scenario shown in Figure 3. Packets traveling between U and V are forwarded within the clouded fragment of the network. Suppose that the arrows represent neighborhoods. In a steady state, the path A–B–C (of length 2) is ...
Slide 1
... Easier to make it reliable (note it is not necessarily more reliable). Guaranteed/reserved bandwidth. Identify flows by connection identifier rather than source/destination address (tag switching) ENTS689L: Packet Processing and Switching Networking Technologies ...
... Easier to make it reliable (note it is not necessarily more reliable). Guaranteed/reserved bandwidth. Identify flows by connection identifier rather than source/destination address (tag switching) ENTS689L: Packet Processing and Switching Networking Technologies ...
Taxonomy of communication networks
... Broadcast networks nodes share a common channel; information transmitted by a node is received by all other nodes in the network ...
... Broadcast networks nodes share a common channel; information transmitted by a node is received by all other nodes in the network ...
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... – Routers with 20+ million lines of code – Cascading failures, vulnerabiliWes, etc. ...
... – Routers with 20+ million lines of code – Cascading failures, vulnerabiliWes, etc. ...
CMPT 371: Chapter 1 - Simon Fraser University
... up to 1 Mbps upstream (today typically < 256 kbps) up to 8 Mbps downstream (today typically < 1 Mbps) FDM: 50 kHz - 1 MHz for downstream ...
... up to 1 Mbps upstream (today typically < 256 kbps) up to 8 Mbps downstream (today typically < 1 Mbps) FDM: 50 kHz - 1 MHz for downstream ...
Chp. 4, Part II - comp
... have appropriate routing tables in place. – Routing tables for routers are constructed from ...
... have appropriate routing tables in place. – Routing tables for routers are constructed from ...
slides - network systems lab @ sfu
... Packet switching versus circuit switching Packet switching allows more users to use network! 1 Mb/s link each user: 100 kb/s when “active” active 10% of time circuit-switching: 10 users packet switching: with 35 users, probability > 10 active less than .0004 ...
... Packet switching versus circuit switching Packet switching allows more users to use network! 1 Mb/s link each user: 100 kb/s when “active” active 10% of time circuit-switching: 10 users packet switching: with 35 users, probability > 10 active less than .0004 ...
Packet Transport Network in BSNL 11-04-13
... Union (ITU-T) undertook a joint effort to standardize a new transport profile for the Multi-Protocol Label Switching (MPLS) technology that intends to provide the basis for the next generation Packet Transport Network. The fundamental idea of this activity is to extend MPLS where necessary with oper ...
... Union (ITU-T) undertook a joint effort to standardize a new transport profile for the Multi-Protocol Label Switching (MPLS) technology that intends to provide the basis for the next generation Packet Transport Network. The fundamental idea of this activity is to extend MPLS where necessary with oper ...
Effect of Packet-size over Network Performance
... TCP was developed by a Department of Defense (DOD) in the United States of America (U.S.A.) research project to connect a number different networks designed by different vendors into a network of networks (the "Internet"). It was initially successful because it delivered a few basic services that ev ...
... TCP was developed by a Department of Defense (DOD) in the United States of America (U.S.A.) research project to connect a number different networks designed by different vendors into a network of networks (the "Internet"). It was initially successful because it delivered a few basic services that ev ...
Chapter I: Introduction - Department of Computer Science and
... Circuit switching: dedicated circuit per call: telephone net Packet switching: data sent thru net in discrete “chunks” In circuit switching, a channel of fixed rate (bandwidth) is provided between the communicating end-points. In packet switching, packets are exchanged only as needed. In circu ...
... Circuit switching: dedicated circuit per call: telephone net Packet switching: data sent thru net in discrete “chunks” In circuit switching, a channel of fixed rate (bandwidth) is provided between the communicating end-points. In packet switching, packets are exchanged only as needed. In circu ...
Ch_19 - UCF EECS
... The first section discusses the IPv4 protocol. It first describes the IPv4 datagram format. It then explains the purpose of fragmentation in a datagram. The section then briefly discusses options fields and their purpose in a datagram. The section finally mentions some security issues in IPv4, whi ...
... The first section discusses the IPv4 protocol. It first describes the IPv4 datagram format. It then explains the purpose of fragmentation in a datagram. The section then briefly discusses options fields and their purpose in a datagram. The section finally mentions some security issues in IPv4, whi ...
Solution
... The first section discusses the IPv4 protocol. It first describes the IPv4 datagram format. It then explains the purpose of fragmentation in a datagram. The section then briefly discusses options fields and their purpose in a datagram. The section finally mentions some security issues in IPv4, whi ...
... The first section discusses the IPv4 protocol. It first describes the IPv4 datagram format. It then explains the purpose of fragmentation in a datagram. The section then briefly discusses options fields and their purpose in a datagram. The section finally mentions some security issues in IPv4, whi ...
Introduction - Department of Computer Engineering
... End-end resources reserved for “call” • call setup required • After the call, the resources (the circuit bandwidth) is dedicated and is not shared with other calls • circuit-like (guaranteed) performance • This course is not about circuit-switching, but we will touch on it so that you get an idea on ...
... End-end resources reserved for “call” • call setup required • After the call, the resources (the circuit bandwidth) is dedicated and is not shared with other calls • circuit-like (guaranteed) performance • This course is not about circuit-switching, but we will touch on it so that you get an idea on ...
Introduction
... End-end resources reserved for “call” • call setup required • After the call, the resources (the circuit bandwidth) is dedicated and is not shared with other calls • circuit-like (guaranteed) performance • This course is not about circuit-switching, but we will touch on it so that you get an idea on ...
... End-end resources reserved for “call” • call setup required • After the call, the resources (the circuit bandwidth) is dedicated and is not shared with other calls • circuit-like (guaranteed) performance • This course is not about circuit-switching, but we will touch on it so that you get an idea on ...
Network Layer
... recently received distance vector from each of its neighbors. 3. A router recalculates its distance vector when: a. It receives a distance vector from a neighbor containing different information than before. b. It discovers that a link to a neighbor has gone down. Networks: Routing ...
... recently received distance vector from each of its neighbors. 3. A router recalculates its distance vector when: a. It receives a distance vector from a neighbor containing different information than before. b. It discovers that a link to a neighbor has gone down. Networks: Routing ...
Packet and Circuit Switching - California State University, Los Angeles
... ATM • Asynchronous Transmission Method (ATM) • Based on fixed length packets • Switches instead of routers are used to route the information on a network • This is the emerging technology in WAN transmission • (Include more information on ATM) ...
... ATM • Asynchronous Transmission Method (ATM) • Based on fixed length packets • Switches instead of routers are used to route the information on a network • This is the emerging technology in WAN transmission • (Include more information on ATM) ...
Data Networks, Summer 2007 Homework #1
... ms, bandwidth of 3 Mbps, and that the switches support both circuit and packet switching. Thus you can either break the file up into 1 KB packets, or set up a circuit through the switches and send the file as one contiguous bit stream. Suppose that packets have 24 bytes of packet header information ...
... ms, bandwidth of 3 Mbps, and that the switches support both circuit and packet switching. Thus you can either break the file up into 1 KB packets, or set up a circuit through the switches and send the file as one contiguous bit stream. Suppose that packets have 24 bytes of packet header information ...
Emerging Internet Technologies
... Delivers with high assurance (a weaker guarantee) Consists of 4 classes and 3 drop precedence levels In-order delivery within each class Drop precedence defined at the source end ...
... Delivers with high assurance (a weaker guarantee) Consists of 4 classes and 3 drop precedence levels In-order delivery within each class Drop precedence defined at the source end ...
Document
... – Internet must evolve to support new applications – IP protocols must support service guarantees I.e., packet delay, loss, jitter – Must also support today’s IP protocols/applications I.e., “Backwards compatibility” requirement • New solutions are required – “Intelligent” switching technologies I.e ...
... – Internet must evolve to support new applications – IP protocols must support service guarantees I.e., packet delay, loss, jitter – Must also support today’s IP protocols/applications I.e., “Backwards compatibility” requirement • New solutions are required – “Intelligent” switching technologies I.e ...
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.