What is the optimal value for SWS? Consider three nodes A, B, C connected in series. Node A is connected to node B via a 3Gbps fiber optic link, 500km in length. Node B is connected to node C via 60 Mbps link, 15 km in length. The links are full duplex. The rate of transmission errors on the links, the switching time at B, and the time to transmit an ACK are all negligible and can be ignored. A large file is to be sent from node A to node C, and there is no other traffic on the links. Packets are 1024B, including headers. Suppose an end-to-end sliding window protocol is used with SWS 3DRWS.

What is the optimal value for SWS? Consider three nodes A, B, C connected in series. Node A is connected to node B via a 3Gbps fiber optic link, 500km in length. Node B is connected to node C via 60 Mbps link, 15 km in length. The links are full duplex. The rate of transmission errors on the links, the switching time at B, and the time to transmit an ACK are all negligible and can be ignored. A large file is to be sent from node A to node C, and there is no other traffic on the links. Packets are 1024B, including headers. Suppose an end-to-end sliding window protocol is used with SWS 3DRWS.

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

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Concept explainers

Network transmission cabling

A network is a collection of devices connected by communication links. A device can be a computer or any instrument capable of sending and receiving data or information formed by other nodes toward the network. A channel that connects people or things is known as a network. It sends the data from one place to another. It is the basic concept of a computer, network, and data communications.

Question

What is the optimal value for SWS?
Consider three nodes A, B, C connected in series. Node A
is connected to node B via a 3Gbps fiber optic link,
500km in length. Node B is connected to node C via 60
Mbps link, 15 km in length. The links are full duplex. The
rate of transmission errors on the links, the switching
time at B, and the time to transmit an ACK are all
negligible and can be ignored. A large file is to be sent
from node A to node C, and there is no other traffic on
the links. Packets are 1024B, including headers. Suppose
an end-to-end sliding window protocol is used with SWS
= RWS.

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