Limitations

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

Application

Maximum number of applications that can be created for a single account

10

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

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.

Dashboard

Maximum storage duration of report statistics

180 days

Audit log

Maximum storage duration of logs on the management portal

90 days

Application

Maximum number of times that an application can call APIs per second

100

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.