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by: Kenna Von


Kenna Von
GPA 3.57

Ahmed Helmy

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About this Document

Ahmed Helmy
Class Notes
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Popular in Computer & Information Science

This 2 page Class Notes was uploaded by Kenna Von on Friday September 18, 2015. The Class Notes belongs to CNT 5106 at University of Florida taught by Ahmed Helmy in Fall. Since its upload, it has received 10 views. For similar materials see /class/206934/cnt-5106-university-of-florida in Computer & Information Science at University of Florida.




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Date Created: 09/18/15
Name or Student 1D Usetul tormulae Note that you ma not need all at these tormulae Use as neededl Utilization a Tprop propagationDelay Trans transmissionDelay propagationDelay W S 2x1 Osms 1 For stopandwait u i where p is the probability that a frame is in error a Utilization for slidingwindow mechanisms with window of w 1p w m Go back N u 1fw lls the pipe or u otherw1se l2ap l2al pwp w l Selective repeat u 1 P ifw fills the pipe or u M otherwise 1 2a 2 P MDl queumg delay Tq W Ts 1s serv1ce time amp p is link utilization MDl average queue length or bulTer occupancy q iTq P zap p MMl 39 d1 Tq TS bfr q p queu1ng e ay 7 u er occupancy 7 1 P 1 P TCP slow start CongWinl per ACK congestion avoidance CongWinl per RTT EstimatedRTTk lOLEstimatedRTTk l 0LSampleRTTk 0lt0Lltl DevRTT lBDevRTT BlSampleRTT 7 EstimatedRTTl 0lt B lt1 TimeoutInterval EstimatedRTT 4DevRTT ATM ABR ratebased congestion control Increase Rate minPCR Rate PCR X RIF Decrease Rate maXMCR minER Rate 7 Rate X RDF Probability distributions and stochastic processes Geometric distribution x is the number of Bernoulli experiments until success PrXkqk391p EXlp Binomial distribution x is the number of successes in n Bernoulli experimentstrials PX kqquot k 19 Emma 71 n kk Name or Student 1D Poisson Distribution PrXk kkk e39kEXVarX 7M Exponential distribution fX7tequot X FX1equot x PrXgtX1FXequot x EX17t


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