Chapter 13 slides
... Similar functionality to a bridge but supports several ports (typically 432); provides expanded capabilities for dynamically configuring and grouping computers connected to the switch fabric into VLANs; corresponds to layer 1 (physical) of the OSI model Essentially a switch but has expanded capabili ...
... Similar functionality to a bridge but supports several ports (typically 432); provides expanded capabilities for dynamically configuring and grouping computers connected to the switch fabric into VLANs; corresponds to layer 1 (physical) of the OSI model Essentially a switch but has expanded capabili ...
06/07 Semester B - City University of Hong Kong
... containing time switches. During the busy hour, the network is offered 200 E of traffic and it can be assumed that this is evenly distributed over the outgoing channels. (i) Derive an equivalent space-division network. (ii) Estimate the blocking probability as an expander. (iii) Estimate the grade o ...
... containing time switches. During the busy hour, the network is offered 200 E of traffic and it can be assumed that this is evenly distributed over the outgoing channels. (i) Derive an equivalent space-division network. (ii) Estimate the blocking probability as an expander. (iii) Estimate the grade o ...
Networks on Chip (NoC)
... • A message is broken into multiple packets (each packet has header information that allows the receiver to re-construct the original message) • A packet may itself be broken into flits – flits do not contain additional headers • Two packets can follow different paths to the destination Flits are ...
... • A message is broken into multiple packets (each packet has header information that allows the receiver to re-construct the original message) • A packet may itself be broken into flits – flits do not contain additional headers • Two packets can follow different paths to the destination Flits are ...
ppt
... – Amount of data sent (or received) per unit time – Corresponds to the “width” of the link – Typically measured in bits per second bandwidth ...
... – Amount of data sent (or received) per unit time – Corresponds to the “width” of the link – Typically measured in bits per second bandwidth ...
No Slide Title
... Network Services Network operations are accomplished by a number of network services, consisting of the software needed to perform a specific type of network task. Network services are defined by the combination of transport protocol, IP address and port number: a logical network connection ide ...
... Network Services Network operations are accomplished by a number of network services, consisting of the software needed to perform a specific type of network task. Network services are defined by the combination of transport protocol, IP address and port number: a logical network connection ide ...
Question Bank - Technical Symposium.
... 1. Discuss the use of computer networks. 2. Describe the features of LAN. 3. What is meant by piggybacking? What are its advantages and disadvantages? 4. How are errors caused in transmission lines? 5. Explain the Binary and Manchester encoding techniques with an example. 6. What is meant by congest ...
... 1. Discuss the use of computer networks. 2. Describe the features of LAN. 3. What is meant by piggybacking? What are its advantages and disadvantages? 4. How are errors caused in transmission lines? 5. Explain the Binary and Manchester encoding techniques with an example. 6. What is meant by congest ...
Document
... • Preplanned route established before packets sent • All packets between source and destination follow this route • Routing decision not required by nodes for each packet • Emulates a circuit in a circuit switching network but is not a dedicated path – Packets still buffered at each node and queued ...
... • Preplanned route established before packets sent • All packets between source and destination follow this route • Routing decision not required by nodes for each packet • Emulates a circuit in a circuit switching network but is not a dedicated path – Packets still buffered at each node and queued ...
ppt - CIS @ Temple University
... A note on the use of these Powerpoint slides: We’re making these slides freely available to all (faculty, students, readers). They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represe ...
... A note on the use of these Powerpoint slides: We’re making these slides freely available to all (faculty, students, readers). They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represe ...
IP addresses
... forwards packets according to its destination address. Router can be seen as a layer 3 switch (network layer ). Router accepts incoming packets from one network interface and forwards towards its intended destination. Routers are the basic building block holding the internet in place. Routers uses I ...
... forwards packets according to its destination address. Router can be seen as a layer 3 switch (network layer ). Router accepts incoming packets from one network interface and forwards towards its intended destination. Routers are the basic building block holding the internet in place. Routers uses I ...
IP Packet Switching
... –Amount of data sent (or received) per unit time –Corresponds to the “width” of the link –Typically measured in bits per second bandwidth ...
... –Amount of data sent (or received) per unit time –Corresponds to the “width” of the link –Typically measured in bits per second bandwidth ...
Overview
... 1964: Baran - packetswitching in military nets 1967: ARPAnet conceived by Advanced Research Projects Agency 1969: first ARPAnet node operational ...
... 1964: Baran - packetswitching in military nets 1967: ARPAnet conceived by Advanced Research Projects Agency 1969: first ARPAnet node operational ...
Solutions
... • When bandwidth is plenty and errors are rare, error checking may actually add unnecessary overhead. If you interpret the “overhead” as bandwidth overhead, then it can be argued that error checking will not add any overhead. The intended interpretation was “computational overhead” though. (c) Ident ...
... • When bandwidth is plenty and errors are rare, error checking may actually add unnecessary overhead. If you interpret the “overhead” as bandwidth overhead, then it can be argued that error checking will not add any overhead. The intended interpretation was “computational overhead” though. (c) Ident ...
switching - WordPress.com
... computer so that the packets are put back into the correct order. One packet also contains details of how many packets should be arriving so that the recipient computer knows if one packet has failed to turn up. If a packet fails to arrive, the recipient computer sends a message back to the comput ...
... computer so that the packets are put back into the correct order. One packet also contains details of how many packets should be arriving so that the recipient computer knows if one packet has failed to turn up. If a packet fails to arrive, the recipient computer sends a message back to the comput ...
Document
... Stateful packet filtering • Allows for more complex policies based on current state of connections between two machines. – Let incoming UDP packets through only if they are responses to outgoing UDP packets you have seen. – Accept TCP packets with SYN set only as part of TCP connection initiation. ...
... Stateful packet filtering • Allows for more complex policies based on current state of connections between two machines. – Let incoming UDP packets through only if they are responses to outgoing UDP packets you have seen. – Accept TCP packets with SYN set only as part of TCP connection initiation. ...
IP packet filtering Packet filtering
... Stateful packet filtering • Allows for more complex policies based on current state of connections between two machines. – Let incoming UDP packets through only if they are responses to outgoing UDP packets you have seen. – Accept TCP packets with SYN set only as part of TCP connection initiation. ...
... Stateful packet filtering • Allows for more complex policies based on current state of connections between two machines. – Let incoming UDP packets through only if they are responses to outgoing UDP packets you have seen. – Accept TCP packets with SYN set only as part of TCP connection initiation. ...
Programming the IBM Power3 SP
... – enable grid and network researchers to test and evaluate new protocols with actual traffic demands of applications rather than modulated demands • Multiclass service inference – enable network clients to assess a system's multi-class mechanisms and parameters using only passive, external observati ...
... – enable grid and network researchers to test and evaluate new protocols with actual traffic demands of applications rather than modulated demands • Multiclass service inference – enable network clients to assess a system's multi-class mechanisms and parameters using only passive, external observati ...
Network Fundamentals
... back around to the first node, creating a complete circuit. Each node takes a turn sending and receiving information through the use of a token. The token along with any data is sent from the first node to the second node which extracts the data addressed to it and adds any data it wishes to send. T ...
... back around to the first node, creating a complete circuit. Each node takes a turn sending and receiving information through the use of a token. The token along with any data is sent from the first node to the second node which extracts the data addressed to it and adds any data it wishes to send. T ...
Chapter 01_02 - UniMAP Portal
... 1964: Baran - packetswitching in military nets 1967: ARPAnet conceived by Advanced Research Projects Agency 1969: first ARPAnet node operational ...
... 1964: Baran - packetswitching in military nets 1967: ARPAnet conceived by Advanced Research Projects Agency 1969: first ARPAnet node operational ...
QoS - NOSS
... The higher priority packets are given preferential treatment, often at the expense of lower priority packets. ...
... The higher priority packets are given preferential treatment, often at the expense of lower priority packets. ...
PPT
... Many of same problems as Voice over IP Designed for data One Priority Quality is worse than Telephone System Quality is better than Internet Voice CIR guarantees Bandwidth FRAD can prioritize voice Video over FR products now available ...
... Many of same problems as Voice over IP Designed for data One Priority Quality is worse than Telephone System Quality is better than Internet Voice CIR guarantees Bandwidth FRAD can prioritize voice Video over FR products now available ...
Chapter 7 Lecture Presentation
... Internet protocol uses datagram packet switching across networks ...
... Internet protocol uses datagram packet switching across networks ...
DARPA AnD the InteRnet RevolutIon
... for each postcard to be mailed inside an envelope addressed in the local language – and then, when it crossed the border, moved into a new envelope addressed in the new local language? End of problem: The local mail sorters would read Kanji in Japan, English in the United States, Arabic in the Middl ...
... for each postcard to be mailed inside an envelope addressed in the local language – and then, when it crossed the border, moved into a new envelope addressed in the new local language? End of problem: The local mail sorters would read Kanji in Japan, English in the United States, Arabic in the Middl ...
Presentation16
... Other Protocols and packet switching • IBM was the biggest player in computer networks when OSI (and later TCP/IP) became accepted as an International standard… came up with their own proprietary implementation whole new operating system based on Unix: • known as AIX ...
... Other Protocols and packet switching • IBM was the biggest player in computer networks when OSI (and later TCP/IP) became accepted as an International standard… came up with their own proprietary implementation whole new operating system based on Unix: • known as AIX ...
投影片 1
... destination vehicle as long as one exists. • Currently, our protocol is designed for IVC networks formed by a few vehicles moving on the same lane. ...
... destination vehicle as long as one exists. • Currently, our protocol is designed for IVC networks formed by a few vehicles moving on the same lane. ...
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.