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yangboz edited this page Nov 22, 2012 · 3 revisions

CONNECT - Client requests a connection to a server

When a TCP/IP socket connection is established from a client to a server, a protocol level session must be created using a CONNECT flow.

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CONNACK - Acknowledge connection request

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PUBLISH - Publish message

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PUBACK - Publish acknowledgment

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PUBREC - Assured publish received(part1)

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PUBREL - Assured publish release(part2)

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PUBCOMP - Assured publish complete(part3)

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SUBSCRIBE - Subscribe to named topics

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SUBACK - Subscription acknowledgement

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UNSUBSCRIBE - Unsubscribe from named topics

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UNSUBACK - Unsubscribe acknowledgement

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PINGREG - PING request

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PINGRESP - PING response

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DISCONNECT - Disconnect notification

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