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Explain various switches schemes and various ATM switches used in ATM networks.

Explain various switches schemes and various ATM switches used in ATM networks.

Database System Concepts
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
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### Topic: Switching Schemes and ATM Switches in ATM Networks **Question:** Explain various switches schemes and various ATM switches used in ATM networks. **Answer:** In the context of Asynchronous Transfer Mode (ATM) networks, several switching schemes and ATM switches are utilized to efficiently manage data transfer. Firstly, let's delve into the switching schemes: **1. Switching Schemes:** - **Packet Switching:** Data is divided into packets before it's transmitted. Each packet can take a different route to reach the destination, where they are reassembled. - **Circuit Switching:** A dedicated communication path is established between two nodes for the duration of the transmission session. - **Cell Switching:** Data is divided into small fixed-size cells, which makes it easier to handle error rates, manage bandwidth, and ensure consistent delivery. Among these, cell switching is prominently utilized in ATM networks due to its fixed-size cell structure, facilitating stable and predictable data services. **2. ATM Switches:** ATM switches are specialized devices for cell-switching within ATM networks. Here are some common types: - **Crossbar Switches:** Utilizing a matrix layout, crossbar switches allow multiple simultaneous paths but can be costly due to the complexity of connections. - **Banyan Switches:** These follow a multi-stage switching fabric and are designed to ensure scalability and fault-tolerance. - **Delta Switches:** These are another form of multi-stage switches that focus on simpler control algorithms to manage switching operations. - **Batcher-Banyan Switches:** A combination of sorting (Batcher network) followed by routing (Banyan network), Batcher-Banyan switches ensure efficient and systematic data cell transfer. In conclusion, understanding the switching schemes and various ATM switches is crucial for optimizing the performance and reliability of ATM networks, ensuring robust data communication infrastructure. (Note: There are no graphs or diagrams provided in this image.)
Transcribed Image Text:### Topic: Switching Schemes and ATM Switches in ATM Networks **Question:** Explain various switches schemes and various ATM switches used in ATM networks. **Answer:** In the context of Asynchronous Transfer Mode (ATM) networks, several switching schemes and ATM switches are utilized to efficiently manage data transfer. Firstly, let's delve into the switching schemes: **1. Switching Schemes:** - **Packet Switching:** Data is divided into packets before it's transmitted. Each packet can take a different route to reach the destination, where they are reassembled. - **Circuit Switching:** A dedicated communication path is established between two nodes for the duration of the transmission session. - **Cell Switching:** Data is divided into small fixed-size cells, which makes it easier to handle error rates, manage bandwidth, and ensure consistent delivery. Among these, cell switching is prominently utilized in ATM networks due to its fixed-size cell structure, facilitating stable and predictable data services. **2. ATM Switches:** ATM switches are specialized devices for cell-switching within ATM networks. Here are some common types: - **Crossbar Switches:** Utilizing a matrix layout, crossbar switches allow multiple simultaneous paths but can be costly due to the complexity of connections. - **Banyan Switches:** These follow a multi-stage switching fabric and are designed to ensure scalability and fault-tolerance. - **Delta Switches:** These are another form of multi-stage switches that focus on simpler control algorithms to manage switching operations. - **Batcher-Banyan Switches:** A combination of sorting (Batcher network) followed by routing (Banyan network), Batcher-Banyan switches ensure efficient and systematic data cell transfer. In conclusion, understanding the switching schemes and various ATM switches is crucial for optimizing the performance and reliability of ATM networks, ensuring robust data communication infrastructure. (Note: There are no graphs or diagrams provided in this image.)
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