Questions tagged [protocols]

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Exercise: Sliding window protocol: Bits for sequence number

This is a task in a lecture on computer networks: "Suppose you are designing a sliding window protocol for a 1-Mbps point-to-point link to the moon, which has a one-way latency of 1.25 seconds. ...
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48 views

Finding maximal and average number of time slots in an Adaptive tree walk protocol

Tried to research here and on other sites with no luck regarding finding the maximal and average number of time slots in an Adaptive tree walk protocol. i'll explain what i mean here: In a simple(...
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Importance of Needham–Schroeder Protocol

I'm working on a paper about model checking on cryptographic protocols and many of the papers I have read, base their approaches in the Needham-Schroeder protocol. I undestand this was one of the ...
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382 views

How Can a Network Server Identify a Specific Computer, Is There a Computer Fingerprint?

Most of websites put some restrictions on how to use their services; the following paragraphs are taken from “Terms of Service” of such website: Only one account per computer is allowed to view ads. ...
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computational and messages complexity equivalence between STP and Leader election

I'm doing a presentation for a distributed systems and networks course. I'm using the book "Design and Analysis of Distributed Algorithms", written by Nicola Santoro. This book contains the proof of ...
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Is this protocol suitable for transaction services?

The paper Eventually-Serializable Data Services (PODC'96) presented an eventually-serializable data service. In the abstract, it says: … and generalizes their algorithm (in the related work Lazy ...
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Given two or more nodes in a network, is it possible to determine the one-way link latencies between two nodes that share a bi-directional connection?

We already know that detecting the one-way latency between only two nodes is impossible. However, if I have a number of nodes in the same subnet that all know about each other, can measure round-trip ...
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Go Back N question(netwrok)

Hello I am trying to understand the GBN protocol and I encountered the following question during my homework. Assume that we have GBN protocol with a window size of 20. The sender sends 15 packets ...
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Intuition for the convergence of the distance vector routing protocols

What is an intuitive way to think about the convergence of the distance vector routing algorithm? According to Wikipedia: Distance-vector routing protocols use the Bellman–Ford algorithm and Ford–...
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43 views

utilization of bitmap protocol

I am curious about utilization calculation in the bitmap protocol. especially if there's a difference between if only station 0 wants to broadcast(and the others doesn't) or only some other station ...
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theoretical question about difference between transmitting stations in Bit-Map Protocol

i am wondering about the difference between the transmitting station in a bit map protocol. for instance, if we have 8 broadcasting stations numbered 0-7, and the racing (contenting) time is $t_0$ ...
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Affects of altering a line in “stop and wait” protocol(no noises)

what will happen if we change "to_physical_layer(&s)" to "to_physical_layer(&r)" in the following code(marked in the code where)? does it make the protocol fail? if so, show a scenario it ...
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161 views

How is there a CPU read misses on exclusive caches?

If the lower level cache contains blocks that are not present in the higher level cache or other caches then it is said to be exclusive. It is exclusive because it is only there. How can there be ...