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Open5gs Amf.yaml Config Example

6 min read Oct 13, 2024
Open5gs Amf.yaml Config Example

Setting Up Your Open5GS AMF with a Config Example

The Open5GS AMF (Access and Mobility Function) is a crucial component of a 5G core network. It manages user registration, mobility, and session management. Configuring the AMF is vital for its proper functioning. This guide will delve into the AMF configuration using amf.yaml with practical examples to get you started.

Understanding the amf.yaml Configuration File

The amf.yaml file serves as the primary configuration file for the Open5GS AMF. It houses various parameters that define how the AMF operates within your 5G network.

Here are some key sections you'll encounter in the amf.yaml file:

  • General Configuration: This section defines basic settings like the AMF's name, its IP address, and the listening port.
  • Authentication: You'll configure the AMF's authentication mechanism and related parameters.
  • Network Resources: Here you define the network resources the AMF will manage, including the UE (User Equipment) pool and the NSSF (Network Slice Selection Function).
  • Logging: This section lets you customize the logging level and output format for debugging purposes.

A Sample amf.yaml Configuration

Here's a basic example of an amf.yaml file:

general:
  amf_name: "amf1"
  amf_ip: "192.168.1.10"
  amf_port: 29502
  amf_region_id: 1
  amf_set_id: 1
  amf_instance_id: 1
  nrf_uri: "http://192.168.1.1:29518"
  registration_type: "LOCAL"
  default_plmn:
    mcc: "208"
    mnc: "93"
  default_serving_network:
    s_n_s_sai: "0101010101010101010101010101010101010101"
  amf_supported_features: 
    - "AmfSupportFeature"
    - "AmfSupportFeature2"
  nrf_authentication_info:
    auth_type: "EAP_TLS"
  default_paging_drx_parameter:
    paging_drx_cycle: 10000
    paging_drx_window: 2000
    drx_inactivity_timer: 10000
  default_n1_n2_message_container:
    n1_n2_message_container_size: 1500
  ue_pool:
    ue_pool_id: "default"
    ue_pool_type: "DYNAMIC"
  amf_ipv4_address: "192.168.1.10"
  amf_ipv6_address: "2001:0:200:3:0:0:0:10"
  default_serving_network_type: "EPC"

authentication:
  authentication_type: "EAP_TLS"
  authentication_key: "your_authentication_key"

network_resources:
  ue_pool:
    ue_pool_id: "default"
    ue_pool_type: "DYNAMIC"
    ue_pool_size: 1000
  nssf_uri: "http://192.168.1.1:29519"

logging:
  log_level: "INFO"
  log_file: "amf.log"

This example demonstrates the basic configuration parameters. You'll need to adjust these values according to your specific 5G network setup. For example, replace your_authentication_key with your actual authentication key.

Important Considerations for Configuring Your AMF

  • Authentication: Choose the appropriate authentication type based on your security requirements. EAP-TLS is commonly used for secure authentication.
  • Networking: Ensure the AMF is properly connected to other 5G core network components like the NRF (Network Resource Function).
  • Logging: Enable detailed logging to troubleshoot any issues you might encounter.
  • Scalability: Consider the size of your user base and potential future growth when configuring the UE pool and other resources.

Configuring Your Open5GS AMF: A Step-by-Step Guide

  1. Download and Install Open5GS: If you haven't already, download the Open5GS source code and compile it. Follow the instructions provided in the Open5GS documentation.
  2. Edit amf.yaml: Locate the amf.yaml file in the Open5GS source code directory. Open it with a text editor and adjust the configuration values as per your needs.
  3. Start the AMF: Use the ./run.sh script in the Open5GS directory to start the AMF. You might need to adjust the script to run the AMF component.

Common amf.yaml Configuration Issues and How to Solve Them

  • Invalid IP Address: Ensure you have entered the correct IP addresses for the AMF, NRF, and other network components.
  • Incorrect Authentication Type: Double-check that the authentication_type is compatible with your network setup.
  • Missing Dependencies: Make sure all necessary Open5GS components are installed and configured correctly.

Conclusion

Mastering the amf.yaml configuration is crucial for setting up and running a stable and functional Open5GS AMF. By understanding the key parameters and applying these guidelines, you can ensure your AMF operates seamlessly within your 5G network. Don't hesitate to consult the Open5GS documentation for a more comprehensive exploration of the amf.yaml file and its many configuration options.

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