Tag Archives: Protocols

Protocols: Fundamental Types

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There are two primary types of data transfer protocols: relaying and multiplexing protocols and error- and flow-control protocols. The main difference between these types is their scope and the presence of feedback mechanisms. Relaying protocols typically operate without feedback, making them less affected by inconsistent state, whereas error-control protocols involve feedback mechanisms, ensuring reliability by addressing errors introduced during data transmission.

Protocols: Phases of Operation

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The operation of communication protocols is typically divided into three distinct phases: Enrollment, Establishment (or Synchronization), and Data Transfer. Each phase plays a crucial role in ensuring that communication between systems or applications is successful.

Protocols: Data Units

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There are four types of interactions a protocol can have. One of these interactions is with a peer protocol. To exchange its state information with the peer, the protocol uses Protocol Data Units (PDUs). A PDU is essentially a block of information, which may be referred to by various names (e.g., frame, packet, segment) by various protocols.

Protocols: An Introduction

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Protocols play a crucial role in ensuring seamless and efficient data exchange between two entities in a communication system. For two parties to communicate, they must have a common language, some common understanding about what symbols in the language stand for, and what rules are used for communication. Consequently, a communication protocol is a set of rules and conventions that allows two or more entities within a communication system to exchange information. The protocol defines the shared schema that includes the rules, syntax, semantics, and synchronization of communication.

What is SDN?

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Software Defined Networks (SDN) is a new technology with a lot of potential and a healthy dose of hype. The main premise of SDN is moving the intelligence of the network from distributed network nodes to a centralized location to enable programmability and flexibility of configuration through software applications. Each… Read more »

Multi-homed Internet Connectivity using BGP

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Connectivity to the Internet through more than one upstream ISP (Internet Service Provider) is referred to as multi-homing (or dual-homing in case of two ISPs). Multi-homing is generally required to increase the reliability of the Internet connection by reducing the reliance on a single provider and eliminating single-point-of –failure in… Read more »