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Introduction

This CL story is specified here as inter domain link restoration process. It is considered as an extension of MDONS use case from ONAP Frankfurt release.

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Design & Implementation

The scope of code change will be very limited with the existing capability at ONAP CLAMP, DCAE and POLICY components. Given the fact that FNC Virtuora MSA support has already delivered

L0/L1 alarms and PM data in VES (CEDM) (7.0 version) format. However, those delivered through TAPI APIs are retrieved from FPM server and converted into TAPI standard in Json format.

HLD

Close Loop Diagram in MDONS

  1. SDC/DCAEMOD/Policy Portal design and activate policy.
  2. Policy config and activate the policy.
  3. SDC/DCAEMOD distribute the DCAE config.
  4. SDC/DCAEMOD/HOMES UI distribute the alarm correlation rules to Holmes.
  5. 3rd party domain controllers report link down alarm to DCAE
  6. DCAE will do data cleaning and filtering for the alarms
  7. DCAE keep track the data.
  8. Holmes do analysis for the alarms.
  9. Holmes notify the reroute event.
  10. Policy matching the reroute rules.
  11. Policy call SO or SDNC to delete the old services and create the new services. For the creation flow, a variable route will be recalculated.

Domain Controller APIs

MSA

MSA SPIs


TAPI

TAPI APIs


DCAE

Data Collection Diagram

RestConf Collector (RCC)

In MDONS use case, prior to subscribing to topics to get event notifications. We manually register 'DCAE' in the domain controller (DC). Once registration is successful, system can subscribe to different topics of DC to get event notification. It is mandatory to pass 'notification URL' to DC so that when event occurs it posts notification to that URL.

Alarm Notification
  • TAPI Alarm Notification[TAPI format]
TAPI Alarm Notification 
{
  "notification": [
    {
      "notification-type": "ALARM_EVENT",
      "target-object-name": [
        {
          "value-name": "node-id",
          "value": "S100-NODE2"
        },
        {
          "value-name": "entity-type",
          "value": "slot"
        },
        {
          "value-name": "entity-id",
          "value": "Slot-1/4"
        }
      ],
      "source-indicator": "RESOURCE_OPERATION",
      "uuid": "76234954-30a2-11e9-a785-dd6c51454c4e",
      "event-time-stamp": "20190208220426.3Z",
      "additional-text": "Equipment Removed:Type=PIS1-PG31",
      "alarm-info": {
        "service-affecting": "SERVICE_AFFECTING",
        "probable-cause": "al-types:equipmentRemoved",
        "is-transient": false,
        "pervceived-severity": "CRITICAL"
      },
      "additional-info": [
        {
          "value-name": "location",
          "value": "NEND"
        },
        {
          "value-name": "direction",
          "value": "NA"
        }
      ],
      "target-object-identifier": "S100-NODE2:slot:Slot-1/4",
      "name": [
        {
          "value-name": "alarm-id",
          "value": "S100-NODE2slotal-types:equipmentRemovedSlot-1/4NANEND"
        }
      ]
    },
     
     ...
     ... 
  ]
}
  • OpenRoadM Alarm Notification[VES format]
MSA Alarm Notification 
{
"event": {
"commonEventHeader": {
"sourceId": "owb-rdm-003",
"startEpochMicrosec": 1469528413000,
"eventId": "owb-rdm-003 1",
"reportingEntityId": "127.0.1.1",
"eventType": "fault_owb-rdm-003_lossOfSignal",
"priority": "High",
"version": 1.0,
"reportingEntityName": "agilevm",
"sequence": 0,
"domain": "fault",
"functionalRole": "rdm",
"lastEpochMicrosec": 1469528413000,
"sourceName": "owb-rdm-003"
},
"faultFields": {
"eventSeverity": "CRITICAL",
"alarmCondition": "lossOfSignal",
"faultFieldsVersion": 1.0,
"specificProblem": "lossOfSignal",
"alarmInterfaceA": "oms-1/0/0/E1",
"alarmAdditionalInformation": [
{
"name": "direction",
"value": "rx"
},
{
"name": “location",
"value": "NEND"
},
{
"name": "type",
"value": "communication"
},
{
"name": "circuit-id",
"value": "100 OMS DLLSTXRIS50 DLLSTXTAW10"
},
{
"name": "additional-detail",
"value": "sample detail"
},
{
"name": "corrective-action",
"value": "sample action"
}
],
"eventSourceType": "interface",
"vfStatus": "Active"
}
}
}

Since MSA notification is already in VES format, it could be posted directly on to DMAAP with relevant topic to be consumed by Hulmes directly. If RCC does not support such configuration, then a 1n1 attribute mirroring mapping xml file need to be designed to feed the data into the existing flow. Thus, VES Mapper plays the role of VES event validation as it is required functionality in VES collector.

MS Blueprint

This is the RCC blueprint which defines the initial configuration for alarm collection in MDONS close loop. RCC supports multiple DC connections.

configuration parameters 
rcc_policy:

rcc_policy: '[{"controller_name":"VirtuoraNC","controller_restapiUrl":"167.254.204.181:8443","controller_restapiUser":"admin","controller_restapiPassword":"admin","controller_accessTokenUrl":"/rest/plat/smapp/v1/oauth/token","controller_accessTokenFile":"./etc/access-token.json","controller_accessTokenMethod":"put","controller_subsMethod":"post","controller_subscriptionUrl":"/cxf/subscriptions","controller_disableSsl":"true","event_details":[{"event_name":"MSA_Alarm_Subscription","event_description":"AlarmEvent","event_sseventUrlEmbed":"false","event_sseventsField":"null","event_sseventsUrl":"null","event_subscriptionTemplate":"./etc/MSA_Alarm_Subscription_template.json","event_unSubscriptionTemplate":"./etc/MSA_Alarm_Unsubscription_template.json","modifyData": "true","modifyMethod": "modifyMSAEvent"]}]'
RCC_Output Event

This event is the output to be posted on Dmaap by RCC and will be consumed by VES Mapper.

RCC Event 
{
 "tapi-notifyid":"example-mappingfile-id.x.1",

  "notification": [
    {
      "notification-type": "ALARM_EVENT",
      "target-object-name": [
        {
          "value-name": "node-id",
          "value": "S100-NODE2"
        },
        {
          "value-name": "entity-type",
          "value": "slot"
        },
        {
          "value-name": "entity-id",
          "value": "Slot-1/4"
        }
      ],
      "source-indicator": "RESOURCE_OPERATION",
      "uuid": "76234954-30a2-11e9-a785-dd6c51454c4e",
      "event-time-stamp": "20190208220426.3Z",
      "additional-text": "Equipment Removed:Type=PIS1-PG31",
      "alarm-info": {
        "service-affecting": "SERVICE_AFFECTING",
        "probable-cause": "al-types:equipmentRemoved",
        "is-transient": false,
        "pervceived-severity": "CRITICAL"
      },
      "additional-info": [
        {
          "value-name": "location",
          "value": "NEND"
        },
        {
          "value-name": "direction",
          "value": "NA"
        }
      ],
      "target-object-identifier": "S100-NODE2:slot:Slot-1/4",
      "name": [
        {
          "value-name": "alarm-id",
          "value": "S100-NODE2slotal-types:equipmentRemovedSlot-1/4NANEND"
        }
      ]
    },
     
     ...
     ... 
  ]
}

VES Mapper

Mapping File
  • TAPI Alarm to VES Mapping template
TapiAlarm2VES 
<?xml version="1.0" encoding="UTF-8"?><smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd" xmlns:jb="http://www.milyn.org/xsd/smooks/javabean-1.4.xsd" xmlns:json="http://www.milyn.org/xsd/smooks/json-1.1.xsd">
  <json:reader rootName="vesevent" keyWhitspaceReplacement="-">
     <json:keyMap>
        <json:key from="date&time" to="date-and-time" />
     </json:keyMap>
  </json:reader>
  <jb:bean class="org.onap.dcaegen2.ves.domain.ves54.VesEvent" beanId="vesEvent" createOnElement="vesevent">
     <jb:wiring property="event" beanIdRef="event" />
  </jb:bean>
  <jb:bean class="org.onap.dcaegen2.ves.domain.ves54.Event" beanId="event" createOnElement="vesevent">
     <jb:wiring property="commonEventHeader" beanIdRef="commonEventHeader" />
     <jb:wiring property="faultFields" beanIdRef="faultFields" />
  </jb:bean>
  <jb:bean class="org.onap.dcaegen2.ves.domain.ves54.CommonEventHeader" beanId="commonEventHeader" createOnElement="vesevent">
     <jb:expression property="version">'1.0'</jb:expression>
     <jb:expression property="eventType">'fault_OWB-RDM-NE1_equipmentFault'</jb:expression>
     <jb:expression property="eventId" execOnElement="vesevent">'QWB-RDM-NE1 23'</jb:expression>
     <jb:expression property="functionalRole">'NA'</jb:expression>
     <jb:expression property="reportingEntityName">'emf171195Cluster'</jb:expression>
     <jb:expression property="reportingEntityId">'10.249.26.175'</jb:expression>
     <jb:expression property="domain">'fault'</jb:expression>
     <jb:value property="sequence" data="0" default="0" decoder="Long" />
     <jb:value property="lastEpochMicrosec" data="1487894721807000"/>
     <jb:value property="startEpochMicrosec" data="1487894721807000"/>
     <jb:expression property="priority">'Medium'</jb:expression>
     <jb:expression property="sourceName">'OWB-RDM-NE1'</jb:expression>
     <jb:expression property="sourceId">'OWB-RDM-NE1'</jb:expression>
  </jb:bean>
  <jb:bean class="org.onap.dcaegen2.ves.domain.ves54.FaultFields" beanId="faultFields" createOnElement="vesevent">
     <jb:value property="faultFieldsVersion" data="1.0" default="1.0" decoder="Double" />
     <jb:value property="alarmCondition" data="equipmentFault" />
     <jb:Value property="alarmInterfaceA" data="2"/>
     <jb:expression property="specificProblem">'equipmentFault'</jb:expression>
     <jb:expression property="vfStatus">'Active'</jb:expression>
     <jb:expression property="eventSeverity">'MAJOR'</jb:expression>
     <jb:expression property="eventSourcTeype">'Shelf'</jb:expression>
     <jb:wiring property="alarmAdditionalInformation" beanIdRef="alarmAdditionalInformationroot" />
  </jb:bean>
  <jb:bean class="java.util.ArrayList" beanId="alarmAdditionalInformationroot" createOnElement="vesevent">
     <jb:wiring beanIdRef="alarmAdditionalInformation" />
  </jb:bean>
  <jb:bean class="org.onap.dcaegen2.ves.domain.ves54.AlarmAdditionalInformation" beanId="alarmAdditionalInformation" createOnElement="varbinds/element">
     <jb:value property="name" data="direction" />
     <jb:value property="value" data="tx" />
     <jb:value property="name" data="location" />
     <jb:value property="value" data="NEND" />
     <jb:value property="name" data="type" />
     <jb:value property="value" data="equipment" />
     <jb:value property="name" data="circuit-id" />
     <jb:value property="value" data="" />
  </jb:bean></smooks-resource-list>
  • MSA Data are already in VES format.  If VES Collector supports Rest API notification mode, MDONS can use VES collector for OpenRoadM data collection from domain controller.
VES Event

Mapper output as an VES event is posted back to Dmaap.

Converted VES Event

HOLMES

AAI APIs

Upon receiving NNI down alarm:

  • AAI  APIs - APIs to update status of related NNI status, retrieve alarm correlation keys and related service instance IDs, etc.
AAI APIs

Code change needs to be introduced for functions to adapt the above AAI APIs from the correlation rules. 

Drools Rule - Alarm Correlation

  • Alarm Correlation Rules  - Drools rules design time from SDC or Holmes UI to correlate the alarms.
Alarm Correlation Rule


Upon receiving NNI up notification - update the status of the NNI in AAI.

Output

DCAE_Output_Event 
{
    "closedLoopEventClient": "DCAE.MDONS-eventProcessor",
    "policyVersion": "1.6.3",
    "policyName": "MDONS",
    "policyScope": "service=OTNService,type=SampleType,closedLoopControlName=ControlLoop-MDONS-2179b738-fd36-4843-a71a-a8c24c70c66b",
    "target_type": "VM",
    "AAI": {
        "request-id":"1166bf8b-17a2-42ba-87c9-d05dc99799a1",
        "service-name":"ECHService1",
        "service-type":"MDONS_OTN"
    },
    "closedLoopAlarmStart": 1484677482204798,
    "closedLoopEventStatus": "ONSET",
    "closedLoopControlName": "ControlLoop-MDONS-2179b738-fd36-4843-a71a-a8c24c70c66b",
    "version": "1.0.2",
    "target": "vserver.vserver-name",
    "requestID": "97964e10-686e-4790-8c45-bdfa61df770f",
    "from": "DCAE"
}

POLICY

Operational Policy

Operational Policy 
controlLoop:
  version: 2.0.0
  controlLoopName: ControlLoop-MDONS-2179b738-fd36-4843-a71a-a8c24c70c66b
  trigger_policy: unique-policy-id-for-Reroute
  timeout: 3600
   
policies:
  - id: unique-policy-id-for-Reroute
    name: Domain Service Creation Reroute
    description:
    actor: SDNC
    recipe: Reroute
    target:
	  resourceID: 2179b738-fd36-4843-a71a-a8c24c70c66b
      type: VM
    retry: 3
    timeout: 1200
    success: final_success
    failure: final_failure
    failure_timeout: final_failure_timeout
    failure_retries: final_failure_retries
    failure_exception: final_failure_exception
    failure_guard: final_failure_guard

Apex Engine

Apex Policy Engine is used in MDONS use case to execute the operational Policy.

Apex Configuration - OnapPfConfig.json 
  "engineServiceParameters":{
	  "name": "MDONSPolicyModelEngine",
	  "version": "0.0.1",
	  "id": 101,
	  "instanceCount": 2,
	  "deploymentPort": 12345,
	  "engineParameters": {
		"executorParameters": {
		  "MVEL": {
			"parameterClassName": "org.onap.policy.apex.plugins.executor.mvel.MvelExecutorParameters"
		  },
		  "JAVASCRIPT": {
			"parameterClassName": "org.onap.policy.apex.plugins.executor.javascript.JavascriptExecutorParameters"
		  }
		},
		"contextParameters": {
		  "parameterClassName": "org.onap.policy.apex.context.parameters.ContextParameters",
		  "schemaParameters": {
			"Avro": {
			  "parameterClassName": "org.onap.policy.apex.plugins.context.schema.avro.AvroSchemaHelperParameters"
			},
			"Java": {
			  "parameterClassName": "org.onap.policy.apex.context.impl.schema.java.JavaSchemaHelperParameters",
			  "jsonAdapters": {
				"Instant": {
				  "adaptedClass": "java.time.Instant",
				  "adaptorClass": "org.onap.policy.controlloop.util.Serialization$GsonInstantAdapter"
				}
			  }
			}
		  }
		}
	  }
  },
  "eventInputParameters":{ 
	"DCAEConsumer": {
		"carrierTechnologyParameters": {
		  "carrierTechnology": "RESTCLIENT",
		  "parameterClassName": "org.onap.policy.apex.plugins.event.carrier.restclient.RestClientCarrierTechnologyParameters",
		  "parameters": {
			"url": "http://message-router:3904/events/unauthenticated.DCAE_Output_Event/g1/c1?timeout=60000"
		  }
		},
		"eventProtocolParameters": {
		  "eventProtocol": "JSON",
		  "parameters": {
			"nameAlias": "policyName",
			"versionAlias": "version",
			"sourceAlias": "from",
			"pojoField": "VirtualControlLoopEvent"
		  }
		}
	  }
	 },
  "eventOutputParameters":{ 
	  "SDNC": {
		"carrierTechnologyParameters": {
		  "carrierTechnology": "RESTCLIENT",
		  "parameterClassName": "org.onap.policy.apex.plugins.event.carrier.restclient.RestClientCarrierTechnologyParameters",
		  "parameters": {
			"url": "http://<SDNC-IP>:<SDNC-PORT>//service/optical-service/?"
		  }
		},
		"eventProtocolParameters": {
		  "eventProtocol": "JSON",
		  "parameters": {
			"nameAlias": "policyName",
			"versionAlias": "version",
			"sourceAlias": "from",
			"pojoField": "VirtualControlLoopEvent"
		  }
		}
	  }
	}
  }
}

Apex Policy

Apex Policy Model - ApexMDONSPolicy 
model create name=ApexMDONSPolicy


schema create name=SimpleStringType flavour=Java schema=java.lang.String
schema create name=UUIDType         flavour=Java schema=java.util.UUID
schema create name=SimpleIntType    flavour=Java schema=java.lang.Integer

schema create name=ServiceInstanceType flavour=Avro schema=LS
#MACROFILE:"src/main/resources/schemas/ServiceInstanceType.avsc"

schema create name=SDNCRequestEventPayloadType flavourAvro schema=LS
#MACROFILE:"src/main/resources/schemas/SDNCRequestEventPayloadType.avsc"

schema create name=SDNCRequestEventHeaderType flavourAvro schema=LS
#MACROFILE:"src/main/resources/schemas/SDNCRequestEventHeaderType.avsc"

event create name=inputEvent version=0.0.1 nameSpace=org.onap.policy.apex.onap.pmcontrol source=DCAE target=APEX
event parameter create name=inputEvent parName=nfName schemaName=SimpleStringType
event parameter create name=inputEvent parName=policyName schemaName=SimpleStringType
event parameter create name=inputEvent parName=changeType schemaName=SimpleStringType
event parameter create name=inputEvent parName=closedLoopControlName schemaName=SimpleStringType
event parameter create name=inputEvent parName=serviceInfo schemaName=ServiceInstanceType

event create name=SDNCRequestEvent nameSpace=org.onap.policy.apex.onap.pmcontrol source=APEX target=SDNC
event parameter create name=SDNCRequestEvent parName=commonHeader schemaName=SDNCRequestEventHeaderType
event parameter create name=SDNCRequestEvent parName=payload schemaName=SDNCRequestEventPayloadType

task create name=CreateSDNCRequestPayloadTask
task inputfield create name=CreateSDNCRequestPayloadTask fieldName=serviceInfo =ServiceInstanceType
task outputfield create name=CreateSDNCRequestPayloadTask fieldName=payload schemaName=SDNCRequestEventPayloadType
task outputfield create name=CreateSDNCRequestPayloadTask fieldName=commonHeader schemaName=SDNCRequestEventHeaderType
task outputfield create name=CreateSDNCRequestPayloadTask fieldName=albumID schemaName=UUIDType
task logic create name=CreateSDNCRequestPayloadTask logicFlavour=JAVASCRIPT logic=LS
#MACROFILE:"src/main/resources/logic/CreateSDNCRequestPayloadTask.js""

policy create name=CreateEventPolicy template=Freestyle firstState=CreateService

policy state create name=CreateEventPolicy stateName=CreateService triggerName=inputEvent defaultTaskName=CreateSDNCRequestPayloadTask
policy state output create name=CreateEventPolicy stateName=CreateService outputName=SDNCRequestPayloadOutput eventName=SDNCRequestEvent nextState=NULL
policy state taskref create name=CreateEventPolicy stateName=CreateServices taskName=CreateSDNCRequestPayloadTask outputType=DIRECT outputName=SDNCRequestOutput


Policy Schema

ServiceInstanceType.avsc 
{
  "name": "AAI",
  "type": "record",
  "fields": [
    {
      "name": "request-id",
      "type": "string"
    },
    {
      "name": "service-name",
      "type": "string"
    },
    {
      "name": "service-type",
      "type": "string"
    }
  ]
}
SDNCRequestEventPayloadType.avsc 
{
  "name": "SDNCRequestEventPayloadEntry",
  "type": "record",
  "fields": [
    {
      "name": "request-id",
      "type": "string"
    },
    {
      "name": "service-name",
      "type": "string"
    },
    {
      "name": "service-type",
      "type": "string"
    }
  ]
}

SDNC API

Upon receiving the alarm event, DCAE_Output_Event, an SDNC API is called to do the following:

  1. Upda, te OTN service instance status.
  2. Lookup for available IDL
  3. Delete original domain services
  4. Create new domain service accordingly
  5. Associate the new IDL and domain services with the existing OTN service instance.


SDNC API for CL Actions 
URL : https://<SDNC-IP>:<SDNC-PORT>/service/optical-service/logical-links?link-type=inter-domain 
METHOD : PATCH
Request Body:
{
    "request-id":"1166bf8b-17a2-42ba-87c9-d05dc99799a1",
    "service-name":"ECHService1",
	"service-type":"MDONS_OTN"
}


Code change needs to be introduced to support this API at SDNC as well as new DG(s) to be defined for the action logic. 

CLAMP

CL Template

The template is defined at SDC in design time by user.

Control Loop Template


CL Instance

Ideally, DCAE micro-services are deployed and can be configured at Close Loop instance instantiation at runtime while Apex policy defined above being created and deployed as well.

References


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