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22 # O-RAN-SC Non-RealTime RIC O-DU Closed Loop use case Slice Assurance
26 The consumer takes a number of environment variables, described below, as configuration.
28 >- MR_HOST **Required**. The host for DMaaP Message Router. Example: `http://mrproducer`
29 >- MR_PORT **Required**. The port for the DMaaP Message Router. Example: `8095`
30 >- SDNR_ADDR Optional. The address for SDNR. Defaults to `http://localhost:3904`.
31 >- SDNR_USER Optional. The user for the SDNR. Defaults to `admin`.
32 >- SDNR_PASSWORD Optional. The password for the SDNR user. Defaults to `Kp8bJ4SXszM0WXlhak3eHlcse2gAw84vaoGGmJvUy2U`.
33 >- LOG_LEVEL Optional. The log level, which can be `Error`, `Warn`, `Info` or `Debug`. Defaults to `Info`.
34 >- POLLTIME Optional. Waiting time between one pull request to DMaaP and another. Defaults to 10 sec
38 There is a status call provided in a REST API on port 40936.
44 To make it easy to test during development of the consumer, there is a stub provided in the `stub` folder.
46 This stub is used to simulate both received VES messages from DMaaP MR with information about performance measurements for the slices in a determined DU and also SDNR, that sends information about Radio Resource Management Policy Ratio and allows to modify value for RRM Policy Dedicated Ratio from default to higher value.
48 By default, SDNR stub listens to the port `3904`, but his can be overridden by passing a `--sdnr-port [PORT]` flag when starting the stub. For DMaaP MR stub default port is `3905` but it can be overridden by passing a `--dmaap-port [PORT]` flag when starting the stub.
50 To build and start the stub, do the following:
54 >3. ./stub [--sdnr-port <portNo>] [--dmaap-port <portNo>]