+dmaap-vth:
+ - VTH used to subscribe and publish topics/message via dmaap api
+
+a1-mediator-vth:
+ - VTH used to communicate with A1-mediator
+ - Built according to: https://gerrit.o-ran-sc.org/r/gitweb?p=ric-plt/a1.git;a=blob;f=a1/openapi.yaml
+ - Functionality includes:
+ - health-check on A1
+ - list registered policy types
+ - GET,DELETE,PUT policy types
+ - list policy instance
+ - GET,DELETE,PUT policy instance
+ - Retrieve policy instance status
+
+smo-o1-vth:
+ - Performs health checks to verify that O1 interface is alive by getting alarm list
+
+a1-policy-manager-vth:
+ - Used to communicate with A1 policy management service api
+ - Built according to: https://docs.o-ran-sc.org/projects/o-ran-sc-nonrtric/en/latest/policy-agent-api.html#policy-agent-api
+ - Has all functionality that is available in the above link. The vth will require the action and method necessary information e.g. query values and json data and forward the request to the service
+
+a1-sdnc-vth:
+ - Used to communicate with SDNC A1 Controller api
+ - built according to: https://docs.o-ran-sc.org/projects/o-ran-sc-nonrtric/en/latest/sdnc-a1-controller-api.html
+ - Has all functionality that is available in the above link. The vth will require the action and method necessary information e.g. query values and json data and forward the request to the service