20031015-FAST-Ravot
... Larger packet size (Jumbogram : payload larger than 64K) Is standard MTU the largest bottleneck? ...
... Larger packet size (Jumbogram : payload larger than 64K) Is standard MTU the largest bottleneck? ...
ZetaTCP - AppEx Networks
... Loss Based - Since network pipes are so much fatter today, most TCP optimizers use techniques to increase the initial congestion window size (CWND) and also seek to provide better congestion management and loss recovery. The problem with this approach is that even with these tweaks, TCP transport sp ...
... Loss Based - Since network pipes are so much fatter today, most TCP optimizers use techniques to increase the initial congestion window size (CWND) and also seek to provide better congestion management and loss recovery. The problem with this approach is that even with these tweaks, TCP transport sp ...
Implementation_of_IP_Mesh_Network
... bandwidth for the tests. The throughputs of TCP and UDP traffic are about 1/2 and 1/8 of allocated bandwidth respectively. ASI card buffer queue affects the latency of packet sending. Less buffer queue decreases latency, but increases CPU usage due to more interrupts and context switches. ...
... bandwidth for the tests. The throughputs of TCP and UDP traffic are about 1/2 and 1/8 of allocated bandwidth respectively. ASI card buffer queue affects the latency of packet sending. Less buffer queue decreases latency, but increases CPU usage due to more interrupts and context switches. ...
Effect of Packet-size over Network Performance
... Abstract- TCP (Transmission Control Protocol) is the most widely-used protocol on Internet. It divides one large data into small sized packets, called segments. Segmentation is useful for improving network performance. It has a major problem in that its congestion control algorithm does not allow fl ...
... Abstract- TCP (Transmission Control Protocol) is the most widely-used protocol on Internet. It divides one large data into small sized packets, called segments. Segmentation is useful for improving network performance. It has a major problem in that its congestion control algorithm does not allow fl ...
Powerpoint
... are potentially smaller than the original transmission. • Some of the frames can be lost • If a message is fragmented and frames are lost, all frames up to the first lost frame are passed up to the receiving TCP and all subsequent frames are dropped. • TCP views this as a stream and is unaware of th ...
... are potentially smaller than the original transmission. • Some of the frames can be lost • If a message is fragmented and frames are lost, all frames up to the first lost frame are passed up to the receiving TCP and all subsequent frames are dropped. • TCP views this as a stream and is unaware of th ...
CS 456: Computer Networks: Congestion Control/QoS
... Backpressure If node becomes congested it can slow down or halt flow of packets from other nodes May mean that other nodes have to apply control on incoming packet rates Propagates back to source Can restrict to logical connections generating most traffic Used in connection oriented that allow hop ...
... Backpressure If node becomes congested it can slow down or halt flow of packets from other nodes May mean that other nodes have to apply control on incoming packet rates Propagates back to source Can restrict to logical connections generating most traffic Used in connection oriented that allow hop ...
Chapter 12: The Transport layer
... The first handshake requests synchronization. The second and third handshakes acknowledge the initial synchronization request, and synchronize the connection parameters in the opposite direction. The final handshake segment sends an acknowledgement to the destination that both sides agree that a con ...
... The first handshake requests synchronization. The second and third handshakes acknowledge the initial synchronization request, and synchronize the connection parameters in the opposite direction. The final handshake segment sends an acknowledgement to the destination that both sides agree that a con ...
Network
... End to end error control using CRC error detection at layer 3 level Variable packet size Virtual circuit (usually permanent) Multiple data rates Committed Data Rate Peak data rate (discard eligible) ...
... End to end error control using CRC error detection at layer 3 level Variable packet size Virtual circuit (usually permanent) Multiple data rates Committed Data Rate Peak data rate (discard eligible) ...
Network Layer (Congestion and QoS)
... - There is a setup phase, this cases delay in starting data flow. - Routers need to maintain per-flow state. This approach is flow-based and not very scalable. - Complex router-to-router exchange of flow information. A simpler and approach was then designed by the IETF called, ...
... - There is a setup phase, this cases delay in starting data flow. - Routers need to maintain per-flow state. This approach is flow-based and not very scalable. - Complex router-to-router exchange of flow information. A simpler and approach was then designed by the IETF called, ...
Chapter 20 - William Stallings, Data and Computer Communications
... can use cumulative acknowledgement for efficiency ...
... can use cumulative acknowledgement for efficiency ...
ECE 654: Computer Networks Final Exam
... and 2MB for the total of 10MB. Thus it requires 15 RTTs. A more conservative approach is to increase the window by a packet (1KB) per round trip cycle. In this case, the window will be 512KB, 513KB, …,530KB and thus we will require 28 RTTs. 4. Consider an additive increase multiplicative decrease co ...
... and 2MB for the total of 10MB. Thus it requires 15 RTTs. A more conservative approach is to increase the window by a packet (1KB) per round trip cycle. In this case, the window will be 512KB, 513KB, …,530KB and thus we will require 28 RTTs. 4. Consider an additive increase multiplicative decrease co ...
CS155: Computer and Network Security
... client -> server : with the data (for eg: "ls\r\n") server -> client : echo the data - ack the previous packet (also send results of command) client -> server : ack the server packet ...
... client -> server : with the data (for eg: "ls\r\n") server -> client : echo the data - ack the previous packet (also send results of command) client -> server : ack the server packet ...
Hour 1. What Is TCP/IP
... Name resolution is mapping of domain names to an IP address. TCP/IP's name service system provides for a hierarchy of name servers that supply domain name/IP address mappings for DNSregistered computers on the network. Another common name resolution scheme is the Windows Internet Name Services ...
... Name resolution is mapping of domain names to an IP address. TCP/IP's name service system provides for a hierarchy of name servers that supply domain name/IP address mappings for DNSregistered computers on the network. Another common name resolution scheme is the Windows Internet Name Services ...
ppt
... its data rate according to the packet losses In the wireless mobile network, losses are more caused by high bit error rate and fading effect and temporary disconnection ...
... its data rate according to the packet losses In the wireless mobile network, losses are more caused by high bit error rate and fading effect and temporary disconnection ...
What computers talk about and how. COS 116, Spring 2012 Adam Finkelstein
... Internet is actually a bunch of connected computers called routers Packets hop from router to router until they reach destination ...
... Internet is actually a bunch of connected computers called routers Packets hop from router to router until they reach destination ...
chapter5_1
... that correspond to retransmitted segments, but use a backoff strategy, and retain the timeout value from a retransmitted packet for subsequent packets until a valid ...
... that correspond to retransmitted segments, but use a backoff strategy, and retain the timeout value from a retransmitted packet for subsequent packets until a valid ...
TCP Performance Issues in Ad Hoc Networks
... • This inability results in performance degradation in ad hoc networks •Route re-computation takes a finite amount of time • During this time no packet can reach the destination through the existing route • Packets and ACKs may get queued and possibly dropped • In turn leads to timeouts at the sourc ...
... • This inability results in performance degradation in ad hoc networks •Route re-computation takes a finite amount of time • During this time no packet can reach the destination through the existing route • Packets and ACKs may get queued and possibly dropped • In turn leads to timeouts at the sourc ...
Začátek formuláře Which Application layer protocol is widely used to
... 10 What does the http portion of the URL http://www.cisco.com/edu/ communicate to a web browser? The web browser needs to locate the www server. The address is located on a site whose name is http. The web browser is notified as to which protocol to use. The http portion represents the type of web b ...
... 10 What does the http portion of the URL http://www.cisco.com/edu/ communicate to a web browser? The web browser needs to locate the www server. The address is located on a site whose name is http. The web browser is notified as to which protocol to use. The http portion represents the type of web b ...
document
... – Cwnd set to 1/2 of its value when congestion loss occurred – Sender can send up to minimum of advertised window and cwnd – Then, additive increase cwnd (at most 1 at each RTT) – Careful way to approach limit of network IFA’2004 ...
... – Cwnd set to 1/2 of its value when congestion loss occurred – Sender can send up to minimum of advertised window and cwnd – Then, additive increase cwnd (at most 1 at each RTT) – Careful way to approach limit of network IFA’2004 ...