Chapter 2 Lecture Presentation
... IP table at server indicates packet should be sent to router, so IP packet is encapsulated in Ethernet frame with addresses s and r Ethernet frame is broadcast by server NIC and captured by router NIC NIC examines protocol type field and then delivers packet to its IP layer IP layer examines IP pack ...
... IP table at server indicates packet should be sent to router, so IP packet is encapsulated in Ethernet frame with addresses s and r Ethernet frame is broadcast by server NIC and captured by router NIC NIC examines protocol type field and then delivers packet to its IP layer IP layer examines IP pack ...
Fastpass: A Centralized “Zero-Queue” Datacenter Network
... built using this principle. Fastpass incorporates two fast algorithms: the first determines the time at which each packet should be transmitted, while the second determines the path to use for that packet. In addition, Fastpass uses an efficient protocol between the endpoints and the arbiter and an ...
... built using this principle. Fastpass incorporates two fast algorithms: the first determines the time at which each packet should be transmitted, while the second determines the path to use for that packet. In addition, Fastpass uses an efficient protocol between the endpoints and the arbiter and an ...
Measurement-based models enable predictable wireless behavior
... Source rate (Kbps) Loss rate on the bad link Loss rate on the bad link ratul | kaist | june '09 ...
... Source rate (Kbps) Loss rate on the bad link Loss rate on the bad link ratul | kaist | june '09 ...
Extending Dijkstra*s Shortest Path Algorithm for Software Defined
... You can run Mininet on your laptop, on a server, in a VM, on a native Linux box (Mininet is included with Ubuntu 12.10+!), or in the cloud (e.g. Amazon EC2.) You can share and replicate results: anyone with a computer can run your code once you've packaged it up. Mininet is an open source project, s ...
... You can run Mininet on your laptop, on a server, in a VM, on a native Linux box (Mininet is included with Ubuntu 12.10+!), or in the cloud (e.g. Amazon EC2.) You can share and replicate results: anyone with a computer can run your code once you've packaged it up. Mininet is an open source project, s ...
ns-tutorial
... By default, a node is specified as a unicast node. If a multicast protocol is desired, a separate clause has to be specified during simulator initializationset ns [new Simulator -multicast on] ...
... By default, a node is specified as a unicast node. If a multicast protocol is desired, a separate clause has to be specified during simulator initializationset ns [new Simulator -multicast on] ...
Document
... COPE estimates the probability that a particular neighbor has a packet as the delivery probability of the link If guess wrong, the relevant native packet is retransmitted, potentially encoded with a new set of native packets ...
... COPE estimates the probability that a particular neighbor has a packet as the delivery probability of the link If guess wrong, the relevant native packet is retransmitted, potentially encoded with a new set of native packets ...
Estimating Available Capacity of a Network Connection
... the bottleneck bandwidth, and then computing the throughput of this stream, using simple average. In our technique, we estimate available capacity as experienced by each probe packet using the network model we describe and evaluate in section 3, and not as an average over a set of probes. To measure ...
... the bottleneck bandwidth, and then computing the throughput of this stream, using simple average. In our technique, we estimate available capacity as experienced by each probe packet using the network model we describe and evaluate in section 3, and not as an average over a set of probes. To measure ...
paper
... is unavailable. If the source rate exceeds network capacity, congestion builds up. Packet collisions and buffer overflow intensify, eventually causing network collapse unless a proper end-to-end flow and congestion-control strategy is in place. In this study, however, we simply assume that the sourc ...
... is unavailable. If the source rate exceeds network capacity, congestion builds up. Packet collisions and buffer overflow intensify, eventually causing network collapse unless a proper end-to-end flow and congestion-control strategy is in place. In this study, however, we simply assume that the sourc ...
Delay-sensitive and multimedia communication in cognitive radio
... Packets are usually consist of non-redundant data, e.g., carried information is highly compressed. Therefore, providing end-to-end congestion control acquire significance in order to satisfy real-time multimedia streaming and high data rate delay-sensitive applications’ QoS requirements in CRSN. Sinc ...
... Packets are usually consist of non-redundant data, e.g., carried information is highly compressed. Therefore, providing end-to-end congestion control acquire significance in order to satisfy real-time multimedia streaming and high data rate delay-sensitive applications’ QoS requirements in CRSN. Sinc ...
Understanding HTTP Flow Rates in Cellular Networks
... flows sorted by rate in descending order. The result is shown in Figure 8 with fastest flows at the right end of x-axis. The results confirm our expectation; the top 20% fastest flows account for 45% of the traffic in wireline data set and 70% of the traffic in the wireless data set. This suggests that flo ...
... flows sorted by rate in descending order. The result is shown in Figure 8 with fastest flows at the right end of x-axis. The results confirm our expectation; the top 20% fastest flows account for 45% of the traffic in wireline data set and 70% of the traffic in the wireless data set. This suggests that flo ...
4.2 TCP Handoff implementation - The Linux Virtual Server Project
... TCPHA, we propose Agile Handoff whose concept is borrowed from agile software developing to implement TCP Handoff. Agile handoff is shown in figure 5.3, primary modules are SHS (SH sender), PR (packet router) and SHR (SH Receiver). The working principle is as follows: 1. When FE decides to initiate ...
... TCPHA, we propose Agile Handoff whose concept is borrowed from agile software developing to implement TCP Handoff. Agile handoff is shown in figure 5.3, primary modules are SHS (SH sender), PR (packet router) and SHR (SH Receiver). The working principle is as follows: 1. When FE decides to initiate ...
Chap 18 - The University of Tulsa
... 18.3.4 Congestion Control Congestion control is a mechanism for improving performance. Congestion is usually handled at the Transport layer, but can be addressed at the Network layer. ...
... 18.3.4 Congestion Control Congestion control is a mechanism for improving performance. Congestion is usually handled at the Transport layer, but can be addressed at the Network layer. ...
How to Cheat at Securing Windows 2000 TCP/IP
... There are a handful of protocols that are the mainstay of the TCP/IP suite, the real bread-andbutter protocols. These protocols handle all of the network connections and routing so that applications are simply concerned with handing data to the protocols at the Transport layer. ...
... There are a handful of protocols that are the mainstay of the TCP/IP suite, the real bread-andbutter protocols. These protocols handle all of the network connections and routing so that applications are simply concerned with handing data to the protocols at the Transport layer. ...
Communications (January 10)
... Data Link Layer The physical layer just sends bits. A mechanism is needed to detect and correct ...
... Data Link Layer The physical layer just sends bits. A mechanism is needed to detect and correct ...
High Speed Network Traffic Analysis with Commodity Multi
... flow-balanced across queues using hardware-based facilities such as RSS (Receive-side Scaling) part of IntelTM I/O Acceleration Technology (I/O AT) [17, 18]. By splitting a single RX queue into several smaller queues, the load, both in terms of packets and interrupts, can be balanced across cores to ...
... flow-balanced across queues using hardware-based facilities such as RSS (Receive-side Scaling) part of IntelTM I/O Acceleration Technology (I/O AT) [17, 18]. By splitting a single RX queue into several smaller queues, the load, both in terms of packets and interrupts, can be balanced across cores to ...
ppt - CSE Labs User Home Pages
... • network loss: IP datagram lost due to network congestion (router buffer overflow) • delay loss: IP datagram arrives too late for playout at receiver – delays: processing, queueing in network; end-system (sender, receiver) delays – typical maximum tolerable delay: 400 ms ...
... • network loss: IP datagram lost due to network congestion (router buffer overflow) • delay loss: IP datagram arrives too late for playout at receiver – delays: processing, queueing in network; end-system (sender, receiver) delays – typical maximum tolerable delay: 400 ms ...
Adaptive Packetization for Error-Prone Transmission over 802.11
... mechanism. On the other hand, staggered collisions refer to collided transmissions from nodes that cannot sense each other’s carrier, i.e., hidden terminals. The simultaneous transmissions from hidden terminals may not necessarily start exactly at the same time. Although the request-to-send (RTS) an ...
... mechanism. On the other hand, staggered collisions refer to collided transmissions from nodes that cannot sense each other’s carrier, i.e., hidden terminals. The simultaneous transmissions from hidden terminals may not necessarily start exactly at the same time. Although the request-to-send (RTS) an ...
PPT - University of Michigan
... - acknowledgements (ACKs): receiver explicitly tells sender that ...
... - acknowledgements (ACKs): receiver explicitly tells sender that ...
Current Good Best Practice Guide
... installed for security reasons to filter out "bad" traffic. Bad traffic may be viri, trojans, evil javascript, or anything that is not known to the device. Sometimes also so called rate shapers are installed as middleboxes; while these do not change the contents of the traffic, they do drop packets ...
... installed for security reasons to filter out "bad" traffic. Bad traffic may be viri, trojans, evil javascript, or anything that is not known to the device. Sometimes also so called rate shapers are installed as middleboxes; while these do not change the contents of the traffic, they do drop packets ...
A Combined Routing+Queueing Approach to Improving
... Wavelength Division multiplexing (WDM). Processing speed at intermediate nodes have been improved by using smart network processors that use different techniques for fast route lookup. Several smart packet scheduling algorithms [3, 4, 5, 6, 7, 8] provide efficient queueing algorithms that aims to re ...
... Wavelength Division multiplexing (WDM). Processing speed at intermediate nodes have been improved by using smart network processors that use different techniques for fast route lookup. Several smart packet scheduling algorithms [3, 4, 5, 6, 7, 8] provide efficient queueing algorithms that aims to re ...