What is the difficulty with the original tcp srtt estimator

Assignment Help Electrical Engineering

Reference no: EM13269011

One difficulty with the original TCP SRTT estimator is the choice of an initial value. In the absence of any special knowledge of network conditions, the typical approach is to pick an arbitrary value, such as 3 s, and hope that this will converge quickly to an accurate value. If this estimate is too small, TCP will perform unnecessary retransmisions. If it is too large, TCP will wait a long time before retransmitting if the first segment is lost. Also, the convergence may be slow, as this problem indicates. (a) Choose f = 0.85 and SRTT(0) = 3 s, and assume all measured RTT values = 1 s and no packet loss. What is SRTT(19)?

Hint: Eq 22.3 can be rewritten to simplify the calculation, using the expression (1n)/(1). SRTT1K + 12 = a * SRTT1K2 + 11 - a2 * RTT1K + 12 (20.3) (b) Now let SRTT(0) = 1 s and assume measured RTT values = 3 s and no packet loss. What is SRTT(19)?

Reference no: EM13269011

Questions Cloud

Find what is the magnitude of the magnetic field : The torque produced by an external magnetic field is torque = D[5i,-3j] where D is a positive constant, and for this orientation of the loop the magnetic potential energy U = -mu cross B is negative. The magnitude of the magnetic field is 14D/IA

Certified public accountant : Why do you think that many firms establish ethics policies but do not enforce them? Also, do you believe that CPAs (certified public accountant) would be the best group to perform ethics audits? Why?

What will be the net proceeds from the issue for esp : what will be the net proceeds from the issue for ESP? assume that the only costs associated with the issue are those paid to the investment banker. c. If the company needs $39 million to finance its future growth, how much debt must ESP issue?

How single sinusoid was obtained along with matlab code : Combine the following expressions into a single sinusoid and plot both the combined and original expressions in Matlab across 2 periods. a) 2cos(3t)-cos(3t-pi/4) b) sin(2t- pi/4) + 2cos(2t-pi/3) c) cos(t) - sin(t) d) 10cos((pi*t) + pi/3) + 8cos((p..

What is the difficulty with the original tcp srtt estimator : In the absence of any special knowledge of network conditions, the typical approach is to pick an arbitrary value, such as 3 s, and hope that this will converge quickly to an accurate value. If this estimate is too small, TCP will perform unnecess..

Competitive intelligence community : Buffalo Wild Wings with a Strengths, Weaknesses, Opportunities, and Threats analysis also referred to as SWOT in the competitive intelligence community.

What kind of business law system would you adopt : what kind of business law system would you adopt -a civil law system or a common law system, and why? 2) What kind of business regulations would you impose?

What is the apparent weight of a cube of iron : What is the apparent weight of a cube of iron of volume 0.2 m3 when it is submerged in water? The density of iron is 7800 kg/m3

Problem on subnet masking and designing small networks : Subnet masking and designing small networks for fictitious organizations - provides system administration and networking services to organizations

User Account

All Pages