V RabbitMQ-ju je connection (povezava) TCP povezava do brokarja, medtem ko je channel (kanal) lahka virtualna povezava znotraj povezave. Pravilna uporaba kanalov (namesto številnih povezav) je pomembna za učinkovitost in je pogosta smernica dobrega dela.
Povezave v primerjavi s kanali
CONNECTION → a TCP connection to the RabbitMQ broker:
→ relatively HEAVY (a real network connection, with overhead to establish/maintain)
CHANNEL → a lightweight, virtual connection MULTIPLEXED over a single TCP connection:
→ many channels share one connection → lightweight; most operations happen on channels
→ publishing, consuming, declaring queues → done via channels
→ one connection can have MANY channels (multiplexing reduces TCP overhead)
