Concept

Exchange

Exchanges are matching and routing engines. They inspect messages and using their binding tables, decides how to forward these messages to message queues.

Exchange never store messages

Queue

Message queues are message storage and distribution entities. Each message queue is entirely independent.

Binding

The relationship between queue and exchange

Channel

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Virtual Host

A collection of exchanges, message queues and associated objects. Virtual hosts are independent server domains that share a common authentication and encryption environment.