AUTONOMOUS SYSTEM Meaning and
Definition
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An autonomous system refers to a self-governing and self-managing network of interconnected computers, routers, and other network devices that operate under a unified administration and have a unique identification number or AS (Autonomous System) number. It is a fundamental concept in the field of computer networking that enables organizations and entities to control and manage their own network infrastructure.
In an autonomous system, the network is operated independently by a single administrative entity, typically a company, Internet Service Provider (ISP), or an organization. It has control over the routing policies and decisions within its network, including the exchange of network traffic with other autonomous systems. Autonomous systems are assigned a globally unique AS number by regional Internet registries.
The primary purpose of autonomous systems is to facilitate the efficient and reliable routing of network traffic across the internet. Each autonomous system can implement its own routing protocols, policies, and security measures to ensure optimal performance and security. They enable organizations to have control over how their data flows and ensure smooth communication between different networks.
Autonomous systems are vital components of the Border Gateway Protocol (BGP), which is the protocol used for routing traffic between autonomous systems. BGP allows coordination and exchange of routing information among autonomous systems, ensuring that data reaches its intended destination across multiple networks.
Overall, an autonomous system provides network autonomy, control, and flexibility to organizations, enabling them to handle their network infrastructure efficiently and effectively.
Etymology of AUTONOMOUS SYSTEM
The term "Autonomous System" (AS) originated in the field of computer networking, particularly in the development of the Internet. Its etymology can be traced back to the early days of the Internet's infrastructure.
The word "autonomous" comes from the Greek word "autonomos" which means "self-governing" or "having its own laws". It is derived from "auto" meaning "self" and "nomos" meaning "law" or "rule". In computer networking, an autonomous system refers to a network or a group of networks that are administered and managed as a single entity with its own policies, routing protocols, and control mechanisms.
The term "Autonomous System" was first introduced in the late 1980s when the Internet was rapidly expanding and the need for better organization and management of network connectivity arose.
