Introduction and Approach

In BBS, notifications generated by the domain specific M&C (Access, Edge) into ONAP using the capabilities provided by ONAP's DCAE component and supported collectors that map the notifications into VES events for processing within ONAP.

For this release, BBS uses Restconf Collector to collect the notifications, converting the notification into the requisite VES event by the VES Mapper uS. The VES event placed on the DMaaP bus with a topic that can be consumed by the associated DCAE uS for processing. In many cases the DCAE uS uses ONAP's Policy capabilities to implement the function specific to the notification.  The specific interactions are documented within the corresponding notification as identified below.

Supported Notifications

The primary scenarios for notifications within BBS are to support:

• Registration and Re-registration of CPE PNFs (e.g., ONT) used to support the Nomadic ONT scenario
• Authentication state change of the gateway (e.g., residential) functionality associated with CPE PNFs that updates the operational state of the HSIA CFS.

Common Functionality

BBS Notifications have functionality provided by ONAP components that is used by multiple BBS Notifications

DCAE

Restconf Collector

The Restconf

The APIs to Access SDN M&C leverage those specified in CCVPN Closed Loop. 

Figure 2.  Domain Controller ↔ Restconf Collector Interfacing Diagram

In case of BBS Nomadic ONT, Restconf collector subscribes both of ONT Registration and RG Activation notifications through separate SSE connections with Access SDN M & C , each of the connection handler is assigned at design time to build JSON message with different topics of Restconf_Notification with certain Restconf2VES XML file indicator (in OID field for the time being ). The SB domain controller IP/port, authentication information and produced topic could be assigned at design time at blue print creation through DCAE-DS and configurable at control loop creation time from CLAMP.

ONT Registration Notification

Following is an example of ONT Registration notification received from Access SDN M&C - the domain controller.

[
    {
     “notification” :
        {
         “event-time”: ”2018-03-15T08:15:32.000Z”,
         “notification-id”:  ”2541256”,
         “message”:
            {
                “topic”：“resource”,
                “object-type”：“ont”,               
                “version”: ”v1”,
                “operation”: “Create”,
                “target”: ”ont/ont=23hk1231231232”,
                “content”:
                   {
                    “ont”:
                       {                        
                        “ontSN”：“48575443FA637D1A”,            
                        “neName”：“MA5800T-001”,
                        “neUNIPort”：“0/1/6”,
                        “onuID”：“101”,                                                              
                        “accessID”：“HG65875420001”,                        
                        “remark”：“”,
                     }
                }
            }
        }
    }
]

The output of Restconf Collector for the ONT Registration is the above JSON message being published on DMAAP with topic of RestConf_ONT_Registration. 

RG Activation Notification

Following is an example of RG Activation notification received from Edge SDN M&C - the domain controller.

  [
      {
          “notification”
          {
              “event-time”:  ”2018-04-15T08:15:32.000Z”,
              “notification-id”:  ”2541256”,
              “message”:
              {
                  “topic”：“resource”,
                  “object-type”：“Gateway”,
                  “version”: ”v1”,
                  “operation”: “Create”,
                  “target”: "Gateway/sn=83575443FA637D1A”,
                  “content” :
                  {
                      “Gateway”:
                      {
                          “gatewaySN”：“83575443FA637D1A”,                                   
                          “mac”：“28-6E-D4-89-34-DD”,               
                          “pppoeUserName”: ”587564@163.com”,                
                          “ip”: "10.68.52.158”,
                          “state”:”Online”,
                          “ontSN”：“48575443FA637D1A”                            
                      }                
                  }
              }
          }
      }           
  ]

The output of Restconf Collector for the RG Activation is the above JSON message being published on DMAAP with topic of RestConf_RG_Activation. 

DC=Domain Controller   RCC=Restconf Collector thread   UVA=Universal VES Adaptor thread  SSE=SSE Connection

ORN=ONT Registration Notification  RN=Restconf Notification topic  PNF_R=PNF Registration Event

RAN=RG Activation Notification   CPE_A=CPE Authentication Event  PRH=PNF Registration Handler  PU= PNF Update 

Figure 2. Logic flow of Restconf Collector vs VES Mapper

VES Mapper

Restconf2VES Mapping

The Restconf2VES mapping rule (*.xml) is provided by the vendor for certain type of notification for ONT and defined as the following:  

The default mapping artifact (xml file) name is specified at the design time in VES Mapper micro-service blueprint at DCAE-DS and it is configurable through CLAMP at control loop creation time. The pre-condition is that the mapping file with correct naming convention should be available or on-boarded and stored in ONAP at design time. When the Nomadic ONT control loop is deployed, the mapping files retrievable and loaded to VES Mapper working space.

PNF Registration Event

VES Mapper converts the ONT Registration notification JSON message from DMAAP into the following PNF Registration event.

This pnfRegistration Event definition can be found at link:
https://wiki.onap.org/display/DW/5G+-+PNF+Plug+and+Play#id-5G-PNFPlugandPlay-STAGE3-PNFREGISTRATIONVESEVENT

The field definitions use for the BBS Use case for ONT Registration:
	eventName: pnfRegistration_<vendorName>_cpe
	eventId: unique per CPE proxied – incremented as described
	sourceName: <PNF-name/PNF correlation ID>: Format string: <Manufacturer
	OUI>-<SerialNumber> or <Manufacturer OUI>-<Model>-<SerialNumber>
	reportingEntityName:<thirdparty-sdnc-id> from esr request
	additionalFields:
		oltName: <OLT name>
		oltPONSlot: <OLT PON Slot>
		oltPONPort: <OLT PON Port>

PRH E