Limitations

Updated on 2022-02-24 GMT+08:00

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The IoT platform has the following technical specifications. If the service cannot meet your service requirements, please contact our salespersons.

Device Access

Object	Description	Limit
Device quantity	Maximum number of devices for a single account	No limit
	Number of devices that can be connected to the IoT platform using the Developer Center during commissioning phase.	20
	Maximum number of sub devices that can be added to a gateway	1000
Connection and request	Maximum number of connections supported by a single MQTT device	1
	Maximum number of MQTT requests per second for a single connection	300
	Maximum throughput (bandwidth) of a single MQTT connection per second, including directly connected devices and gateways	3 KB/s
	Maximum length of a single message reported by an MQTT device	1 MB
	Maximum length of a single message reported by an LWM2M/CoAP device	1 MB

Device Management

Object	Description	Limit
Application	Maximum number of applications that can be created for a single account	10
Application	Maximum number of devices that can be registered for a single application	No limit
Product model (profile)	Maximum number of product models that can be created for a single application	20
Product model (profile)	Maximum size of the product model package	4 MB
Batch device registration	Maximum number of devices that can be batch registered at a time	30,000
Historical device data	Maximum storage duration of historical device data (days) If a longer data storage duration is required, use the Object Storage Service.	7
Rule	Maximum number of rules that can be created for a single application	50
Device configuration update file	Maximum size of the configuration file for a device configuration update (only in JSON format)	200 KB
Batch command delivery	Maximum number of devices that a command can be batch delivered to	30,000
Software/Firmware upgrade	N/A	Only LWM2M devices are supported.
Number of devices for software/firmware upgrade	Maximum number of devices for which the software/firmware can be upgraded at a time	30,000
Firmware upgrade package	Maximum size of the firmware upgrade package	200 MB
Software upgrade package	Maximum size of the software upgrade package	200 MB
Group	Maximum number of groups that can be created for a single application	10
	Maximum number of levels in a group	10
	Maximum number of groups that a device can be added to	1
Tag	Maximum number of device tags that can be created for a single application	2000
Device log	N/A	Only devices based on Huawei NB-IoT chipsets and LWM2M are supported.

Management Portal

Object	Description	Limit (for the IoT Advanced)
Dashboard	Maximum storage duration of report statistics	180 days
Audit log	Maximum storage duration of logs on the management portal	90 days

Northbound API

Object	Description	Limit (for the IoT Advanced)
Application	Maximum number of times that an application can call APIs per second	100
Application	Maximum number of messages pushed to an NA per second	Lower than 10 TPS (recommended). If the rate is higher than 10 TPS, use data forwarding rules.

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