EMQX Adopts Business Source License to Accelerate MQTT + AI Innovation →
Topics
MQTT 5.0 Packet Explained 04: PINGREQ & PINGRESP
Sep 19, 2023EMQX Team
MQTT 5.0 Packet Explained 04: PINGREQ & PINGRESP

MQTT has a type of packet used to simulate heartbeats between the client and server to maintain the connection. They are PINGREQ and PINGRESP packets, which we often call heartbeat packets.

MQTT 5.0 Packet Explained 03: SUBSCRIBE & UNSUBSCRIBE
Sep 15, 2023EMQX Team
MQTT 5.0 Packet Explained 03: SUBSCRIBE & UNSUBSCRIBE

In MQTT, the SUBSCRIBE packet is used to initiate a subscription request, while the SUBACK packet is used to return the subscription result. The UNSUBSCRIBE and UNSUBACK packets are used when unsubscribing.

Subscribe to our blogs