Restrictions
Bosch IoT Hub has some resource restrictions in place to ensure service availability and to prevent service misuse. The following tables give an overview for the service quotas and resource restrictions.
Service plan
| Resource | Description |
|---|---|
| Number of registered devices per tenant | 25 for Free plan 100 for Starter plan unlimited* for Standard plan |
| Number of messages per tenant per month | 100 for Free plan 1.500.000 for Starter plan 1.000.000.000 for Standard plan |
| Device connection time per tenant per month (minutes) (relevant only for connection based protocols) |
50.000 for Free plan 500.000 for Starter plan 500.000.000 for Standard plan |
*Please take into account, that you can unlimitedly register the devices, the number of simultaneously connected devices is restricted. Please contact us for further information.
Protocol adapters
| Resource | Description |
|---|---|
| Ports used | HTTP: 443 MQTT: 8883 AMQP: 5671 |
| HTTP protocol adapter: request timeout | 60 seconds |
| MQTT protocol adapter: connection inactivity | 60 seconds |
| MQTT protocol adapter: number of allowed connect requests per tenant per second | 50 connect requests per second |
Payload
| Resource | Description |
|---|---|
| Message size used to calculate service plan quota | 4 KB |
| Maximum message size for one request | 64 KB |
General restrictions
| Resource | Description |
|---|---|
| Number of free plans per account | 3 |
| Retention policy for events | 60 seconds for Free plan 30 minutes for Starter plan 24 hours for Standard plan |
| Maximal number of secrets per credential | 10 |
| Maximal number of CA certificates per tenant | 5 |
| Supported algorithms for CA public keys | RSA, ECDSA |
| Minimal length for CA public keys | RSA: 2048, ECDSA: 256 |
| Maximal length for CA public keys | RSA: 4096, ECDSA: 384 |