COMPUTING TCP'S RTT AND TIMEOUT VALUES Suppose that TCP's current estimated values for the round trip time (estimatedRTT) and deviation in the RTT (DevRTT) are 310 msec and 45 msec, respectively (see Section 3.5.3 for a discussion of these variables). Suppose that the next three measured values of the RTT are 360 msec, 330 msec, and 350 msec respectively. application TCP IP link physical QUESTION 2 OF 9 What is the RTT Deviation for the the first RTT? Answer RTT Compute TCP's new value of DevRTT, estimated RTT, and the TCP timeout value after each of these three measured RTT values is obtained. Use the values of a = 0.125, and ß = 0.25. Round your answers to two decimal places after leading zeros. Internet application TCP IP link physical

COMPUTING TCP'S RTT AND TIMEOUT VALUES Suppose that TCP's current estimated values for the round trip time (estimatedRTT) and deviation in the RTT (DevRTT) are 310 msec and 45 msec, respectively (see Section 3.5.3 for a discussion of these variables). Suppose that the next three measured values of the RTT are 360 msec, 330 msec, and 350 msec respectively. application TCP IP link physical QUESTION 2 OF 9 What is the RTT Deviation for the the first RTT? Answer RTT Compute TCP's new value of DevRTT, estimated RTT, and the TCP timeout value after each of these three measured RTT values is obtained. Use the values of a = 0.125, and ß = 0.25. Round your answers to two decimal places after leading zeros. Internet application TCP IP link physical

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: the second segment arrives before the first segment, in the ACK of the first arriving

A: If the second segment arrives before the first segment, in the acknowledgement of the first arriving…

Q: Consider the datagrams of each layer in the TCP/IP model, e.g., Frame at the Link Layer, Packet at…

A: Note: As you have asked a multipart question, as per our policy, we will solve the first three parts…

Q: In the figure below a router is transferring packets, each of length L = 5 000 bits over a link with…

A: In The Figure Below A Router Is Transferring Packets, Each Of Length L = 5 000 Bits :

Q: 4. Given the congestion control figure of one side in a TCP communication as below. In which…

A: Here is the solution:-

Q: Given the congestion control figure of one side in a TCP communication as below. In which…

A: Below i have answered:

Q: Is it the case or not? Consider a TCP connection where the most recent SampleRTT was 1 second.…

A: TCP(Transmission Control Protocol) is a connection-oriented protocol, and all connection-oriented…

Q: A router needs to transmit an IPv4 datagram with a total size of S bytes. The link layer of the…

A: ATM Adaption Layer 5 (AAL5) is used to send variables of length packets up to 65,535 octets in size…

Q: Assume that a bottleneck connection with a rate of R bps carries two TCP connections. In both cases,…

A: Two TCP connections are present over some bottleneck link of rate R bps. Both connections have a…

Q: 37. Consider the following plot below of TCP window size as a function of time. Assuming TCP Reno is…

A: Before moving to the question, let’s understand the TCP congestion control algorithm: Since the…

Q: Consider a TCP connection with the following parameters: a) Initial ssthreshold = 4 segments b)…

A: Q1 Answer:- We have the given data: Initial ssthreshold = 4 segments Round Trip Time (RTT) = 10…

Q: Consider that only a single TCP (Reno) connection uses one 10Mbps link which does not buffer any…

A: A The maximum window size that this TCP connection can achieve is 10 segments. BThe average window…

Q: Assume that a bottleneck connection with a rate of R bps carries two TCP connections. In both cases,…

A: Answer: Bottleneck Connection: A Bottleneck occurs in a network when there are too many users…

Q: Consider the datagrams of each layer in the TCP/IP model, e.g., Frame at the Link Layer, Packet at…

A: Ethernet Frame An Ethernet outline is a piece of information alongside the data that is needed to…

Concept explainers

Types Of Protocols

A network protocol is a collection of rules that governs the exchange of data between devices connected to the same network. In other words, network protocols are rules that specify how devices communicate or transfer data over a network. The sender and receiver systems must obey the standards to facilitate communication between them.

Question

COMPUTING TCP'S RTT AND TIMEOUT VALUES
Suppose that TCP's current estimated values for the round trip time (estimatedRTT) and deviation in the RTT (DevRTT) are 310 msec and 45 msec,
respectively (see Section 3.5.3 for a discussion of these variables). Suppose that the next three measured values of the RTT are 360 msec, 330
msec, and 350 msec respectively.
application
TCP
IP
link
physical
QUESTION 2 OF 9
What is the RTT Deviation for the the first RTT?
Answer
RTT
Compute TCP's new value of DevRTT, estimated RTT, and the TCP timeout value after each of these three measured RTT values is obtained. Use the
values of a = 0.125, and ß = 0.25. Round your answers to two decimal places after leading zeros.
Internet
application
TCP
IP
link
physical

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Define TCP.

VIEW

Step 2: The RTT Deviation for the first RTT

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 5 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Consider one TCP connection on a path with a bottleneck link with capacity L. We have a file of size F(assume F is a very large file size). If TCP segment size is B bytes, the two-way propagation delay is tp and connection is always in congestion avoidance phase, find the following: A. Maximum window size that TCP can achieve B. Average window size and average throughput in this TCP connection C. Time it will take from connection establishment to reaching the maximum window size.
Consider a TCP connection with the following parameters: a) Initial ssthreshold = 4 segmentsb) Round Trip Time (RTT) = 10 millisecondsc) Timeout period = 40 millisecondsd) Segment size = 3900 bytesThe TCP connection was used to transfer 17 data segments. While sendingthe segments, data segment 7 and data segment 15 were lost the first timethey were sent (but arrived at the receiver properly when retransmitted).There were no other segment losses apart from the aforementioned. Assumethat data segments received out-of-order are buffered at the receiver. Whatis the average throughput obtained in sending all the data segments (inbytes/sec) including draw a diagram to show the communication process in detail.
15. Consider the following plot of TCP window size as a function of time (y axis is the congestion window size (segments), and x axis is the transmission round). Assuming that TCP Reno is the protocol experiencing the behavior shown above, answer the following questions. 18 16 14 12 10 00 8 6 4 2 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1) Identify the intervals of time when TCP slow start is operating. 2) After the 5th transmission round, is segment loss detected by a triple duplicate ACK or by a timeout? 3) What is the value of Threshold at the 7th transmission round? 4) What is the value of Threshold at the 15th transmission round?
Suppose that TCP's current estimated values for the round trip time (estimatedRTT) and deviation in the RTT (DevRTT) are 300 msec and 13 msec, respectively. Suppose that the next two measured RTTs are 330 msec and 240 msec respectively. We want to calculate TCP's RTT estimate, and the value of TCP's timeout interval. Note that given a new measured RTT, you should first compute devRTT, then estimatedRTT (the textbook incorrectly reverses those computations), and then (lastly) the timeout interval. Use the values of α = 0.125, β = 0.25.Following the newly measured RTT of 330 msec, what is the new value for devRTT in msec? [Note: round your answer to the nearest msec - enter an integer value, do not include any decimal places/point or any leading zeros, but keep your full resolution value of devRTT handy and use it in any later calculations you perform using devRTT.
Uuyujj
39. The figure below shows the TCP Congestion Window for various transmission rounds of a TCP connection. 20 18 16 14 12 10 4 2 2 4 6 10 12 14 16 18 20 Transmission Round How many more (or less) segments will TCP Tahoe send compared to TCP Reno between the transmission rounds 12 and 16 inclusive (i.e., t12 to t16) for the same sequence of events as shown in the graph above (i.e., loss events at t11, tl4 and t16)? a. TCP Tahoe send 13 less segments compared to TCP Reno b. TCP Tahoe send 20 more segments compared to TCP Reno c. TCP Tahoe send 13 more segments compared to TCP Reno d. TCP Tahoe send 20 less segments compared to TCP Reno e. TCP Tahoe send 28 less segments compared to TCP Reno Congestion Window (MSS) 00
Consider a router that interconnects three subnets: Subnet 1, Subnet 2, and Subnet 3. Suppose all of the interfaces in each of these three subnets are required to have the prefix 223.10.128/24. Also suppose that Subnet 1 is required to support at least 50 interfaces, Subnet 2 is to support at least 100 interfaces, and Subnet 3 is to support at least 12 interfaces. Provide three network addresses (of the form a.b.c.d/x) that satisfy these constraints.
Suppose that a TCP source uses a=0.2 and b=0.25. Further assume that this TCP source has just received three ACKs for which it calculated the following SampleRTT values: 24ms, 31ms, 28ms. What are the latest EstimatedRTT and DevRTT values at this TCP source? Assume that the starting values of EstimatedRTT and DevRTT are 30ms and 3ms, respectively. Also, what is the latest TimeOutInterval at this TCP source? Two-digit precision is sufficient in your calculations.
COMPUTER NETWORKS QUESTION : In TCP, hosts need to set the retransmission timeout (RTO) dynamically to adapt for the routing performance and optimize the bandwidth utilization. Assume that one sending hosts found from previous packet/acknowledgement pairs that the RTT between it and the receiver is 45 mS. What will be the RTO of that sending host after receiving a new packet/Ack pair witha new RTT sample = 100 mS. (assume that ?=0.875)