BICS Connections Management API

The Connections Management API from BICS — 3 operation(s) for connections management.

OpenAPI Specification

bics-network-connections-management-api-openapi.yml Raw ↑
openapi: 3.0.1
info:
  title: connect Address Management Connections Management API
  description: "The Cloud Connect Service is a comprehensive multi-cloud one-stop-shop solution that provides a unique combination of layer 2 transport, which is provided by BICS, and dedicated connectivity (hosted connection) directly to the Cloud Service Provider (CSP) infrastructure. This service bypasses the public internet, ensuring reliable, secure, and fast connectivity.\n\nWithin each Cloud Connect Service, the Ethernet Virtual Private Line (EVPL) is provisioned on BICS network defined by MEF 6.2. The EVPL is a secure, point-to-point Ethernet service that provides a high-performance, low-latency connection between your on-premises infrastructure and the CSP infrastructure. \n\nThank you for considering BICS Cloud Connect Service and using our API. If you have any questions or concerns, please contact BICS customer support."
  version: v1
servers:
- url: https://api.bics.com/connect/v1
tags:
- name: Connections Management
  description: ''
paths:
  /connections/{connectionId}:
    summary: /connections/{connectionId}
    parameters: []
    get:
      tags:
      - Connections Management
      summary: Get connection details
      operationId: getConnection
      parameters:
      - name: connectionId
        in: path
        required: true
        allowEmptyValue: false
        style: simple
        explode: false
        schema:
          type: integer
          format: int64
          example: null
      responses:
        '200':
          description: OK
          headers: {}
          content:
            application/json:
              schema:
                type: object
                oneOf:
                - $ref: '#/components/schemas/CloudConnectConnection'
                - $ref: '#/components/schemas/CarrierEthernetConnection'
                example: null
              example: '{"serviceType":"CLOUD_CONNECT","cloudServiceProvider":"AZURE_ER_C3","cloudServiceProviderLabel":"Azure Express Route","cloudServiceRegion":"WESTEUROPE","cloudServiceRegionLabel":"westeurope","orderId":44654,"price":"1050","currency":"EUR","currencyLabel":"EUR","bandwidth":"50MBS","bandwidthLabel":"50 Mbps","contractTerm":"1MONTH","contractTermLabel":"1 Month","protectionScheme":"CC_PROTECTED","protectionSchemeLabel":"CC Protected","companyName":"MM22AzureDirectProtectedPRIVMICROSOFT","customerComment":"Customer comment","customerPurchaseId":"PR: MM22","contactEmailAddress":"customer@mail.com","activationDate":"15.02.2022","status":"Active","additionalAttributes":{},"lines":[{"lineType":"PRIMARY","customerReference":"Customer reference 1000492002Private+Microsoft, Line1, Primary","additionalAttributes":{"linePeering":"PRIVATE"},"interconnect":{"id":"1000492002","type":"ACCESS_LINE","label":"1000492002","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"vlan":1300,"cloudServiceKey":"d2395da2-ce63-45cd-b0e6-c5b3037d094d"},{"lineType":"SECONDARY","customerReference":"Customer reference 1000492003Private+Microsoft, line2, Secondary","additionalAttributes":{"linePeering":"PRIVATE"},"interconnect":{"id":"1000492003","type":"ACCESS_LINE","label":"1000492003","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"vlan":1300,"cloudServiceKey":"d2395da2-ce63-45cd-b0e6-c5b3037d094d"},{"lineType":"PRIMARY","customerReference":"Customer reference 1000492002Private+Microsoft, Line3, Primary","additionalAttributes":{"linePeering":"MICROSOFT"},"interconnect":{"id":"1000492002","type":"ACCESS_LINE","label":"1000492002","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"vlan":1302,"cloudServiceKey":"d2395da2-ce63-45cd-b0e6-c5b3037d094d"},{"lineType":"SECONDARY","customerReference":"Customer reference 1000492003Private+Microsoft, Line 4, Secondary","additionalAttributes":{"linePeering":"MICROSOFT"},"interconnect":{"id":"1000492003","type":"ACCESS_LINE","label":"1000492003","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"vlan":1302,"cloudServiceKey":"d2395da2-ce63-45cd-b0e6-c5b3037d094d"}]}'
          links: {}
    delete:
      tags:
      - Connections Management
      summary: Disconnect connection
      operationId: deleteConnection
      parameters:
      - name: connectionId
        in: path
        required: true
        allowEmptyValue: false
        style: simple
        explode: false
        schema:
          type: string
          example: null
      responses:
        '202':
          description: Accepted
          headers: {}
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectionStatus'
              example: '{"connectionId":44578,"connectionStatus":"In Disconnection"}'
          links: {}
  /connections/{connectionId}/modify:
    summary: /connections/{connectionId}/modify
    parameters: []
    post:
      tags:
      - Connections Management
      summary: Modify connection
      operationId: modifyConnection
      parameters:
      - name: connectionId
        in: path
        description: Connection ID
        required: true
        allowEmptyValue: false
        style: simple
        explode: false
        schema:
          type: string
          example: null
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ModifyConnectionDto'
            example: '{"connectionId":44578,"modificationAttributes":{"bandwidth":"100MBS"}}'
      responses:
        '202':
          description: Accepted
          headers: {}
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectionStatus'
              example: '{"connectionId":44578,"connectionStatus":"In Modification"}'
          links: {}
  /connections:
    summary: /connections
    parameters: []
    get:
      tags:
      - Connections Management
      summary: Get list of all connections
      operationId: getConnections
      parameters:
      - name: serviceType
        in: query
        description: Filter connections by service type
        required: false
        allowEmptyValue: false
        style: form
        explode: true
        schema:
          type: string
          enum:
          - CLOUD_CONNECT
          - CARRIER_ETHERNET
          example: null
      - name: page
        in: query
        description: Page number (1, 2, 3, ..., n). The response is split into distinct pages. If page number is higher that count of pages, empty list will be returned
        required: false
        allowEmptyValue: false
        style: form
        explode: true
        schema:
          type: integer
          format: int32
          default: 1
          example: null
      - name: size
        in: query
        description: 'The number of records per page. Maximum value: 100. If you set the size larger than the maximum, it will be ignored and will return the maximum value'
        required: false
        allowEmptyValue: false
        style: form
        explode: true
        schema:
          type: integer
          format: int32
          default: 100
          example: null
      responses:
        '200':
          description: OK
          headers: {}
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  oneOf:
                  - $ref: '#/components/schemas/CloudConnectConnection'
                  - $ref: '#/components/schemas/CarrierEthernetConnection'
                  example: null
                example: null
              example: '[{"serviceType":"CLOUD_CONNECT","cloudServiceProvider":"AWS_AMAZON","cloudServiceProviderLabel":"AWS Amazon","cloudServiceRegion":"us-east-1","cloudServiceRegionLabel":"us-east-1","connectionId":44389,"price":"1050","currency":"EUR","currencyLabel":"EUR","bandwidth":"50MBS","bandwidthLabel":"50 Mbps","contractTerm":"1MONTH","contractTermLabel":"1 Month","protectionScheme":"CC_UNPROTECTED","protectionSchemeLabel":"CC Unprotected","companyName":"MyCompany","customerComment":"Customer comment","customerPurchaseId":"PR: MC001","contactEmailAddress":"customer@mail.com","activationDate":"15.02.2022","status":"Active","additionalAttributes":{},"lines":[{"customerReference":"My Line","lineType":"PRIMARY","interconnect":{"id":"1000492002","type":"ACCESS_LINE","label":"1000492002","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"cloudServiceKey":"123456789123","additionalAttributes":{}}]},{"serviceType":"CLOUD_CONNECT","cloudServiceProvider":"AZURE_ER_C3","cloudServiceProviderLabel":"Azure Express Route","cloudServiceRegion":"WESTEUROPE","cloudServiceRegionLabel":"westeurope","orderId":44654,"price":"1050","currency":"EUR","currencyLabel":"EUR","bandwidth":"50MBS","bandwidthLabel":"50 Mbps","contractTerm":"1MONTH","contractTermLabel":"1 Month","protectionScheme":"CC_PROTECTED","protectionSchemeLabel":"CC Protected","companyName":"MM22AzureDirectProtectedPRIVMICROSOFT","customerComment":"Customer comment","customerPurchaseId":"PR: MM22","contactEmailAddress":"customer@mail.com","activationDate":"15.02.2022","status":"Active","additionalAttributes":{},"lines":[{"lineType":"PRIMARY","customerReference":"Customer reference 1000492002Private+Microsoft, Line1, Primary","additionalAttributes":{"linePeering":"PRIVATE"},"interconnect":{"id":"1000492002","type":"ACCESS_LINE","label":"1000492002","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"vlan":1300,"cloudServiceKey":"d2395da2-ce63-45cd-b0e6-c5b3037d094d"},{"lineType":"SECONDARY","customerReference":"Customer reference 1000492003Private+Microsoft, line2, Secondary","additionalAttributes":{"linePeering":"PRIVATE"},"interconnect":{"id":"1000492003","type":"ACCESS_LINE","label":"1000492003","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"vlan":1300,"cloudServiceKey":"d2395da2-ce63-45cd-b0e6-c5b3037d094d"},{"lineType":"PRIMARY","customerReference":"Customer reference 1000492002Private+Microsoft, Line3, Primary","additionalAttributes":{"linePeering":"MICROSOFT"},"interconnect":{"id":"1000492002","type":"ACCESS_LINE","label":"1000492002","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"vlan":1302,"cloudServiceKey":"d2395da2-ce63-45cd-b0e6-c5b3037d094d"},{"lineType":"SECONDARY","customerReference":"Customer reference 1000492003Private+Microsoft, Line 4, Secondary","additionalAttributes":{"linePeering":"MICROSOFT"},"interconnect":{"id":"1000492003","type":"ACCESS_LINE","label":"1000492003","city":"Brussels","countryIso3":"BEL","houser":"Brussels 22","datacenter":"BRU22","capacity":"100GBS","capacityLabel":"100 Gb/s","usage":null,"portMode":null,"status":"Active","portTag":null,"additionalData":null},"vlan":1302,"cloudServiceKey":"d2395da2-ce63-45cd-b0e6-c5b3037d094d"}]}]'
          links: {}
    post:
      tags:
      - Connections Management
      summary: Create connection
      description: Submits new connection order
      operationId: createConnection
      parameters: []
      requestBody:
        content:
          application/json:
            schema:
              type: object
              oneOf:
              - $ref: '#/components/schemas/CloudConnectOrder'
              example: null
            example: '{"serviceType":"CLOUD_CONNECT","cloudServiceProvider":"AWS_AMAZON","cloudServiceRegion":"us-east-1","currency":"EUR","bandwidth":"100MBS","contractTerm":"1MONTH","protectionScheme":"CC_UNPROTECTED","companyName":"MyCompany","customerComment":"","customerPurchaseId":"","contactEmailAddress":"","autoVlanAssignment":"true","additionalAttributes":{},"lines":[{"customerReference":"My Line","lineType":"PRIMARY","interconnect":"1000007894","cloudServiceKey":"123456789123","additionalAttributes":{}}]}'
      responses:
        '202':
          description: Accepted
          headers: {}
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectionStatus'
              example: '{"connectionId":44389,"connectionStatus":"In progress"}'
          links: {}
        '400':
          description: Bad Request
          headers: {}
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
              example: '{"timestamp":"2021-12-03T10:15:30+01:00","status":"400","code":"BAD_CONNECTION_CREATE_REQUEST","message":"Invalid request data","errors":["Invalid bandwidth id ''55''","Protection scheme ''CC_PROTECTED'' is not applicable for current service"]}'
          links: {}
components:
  schemas:
    ModifyConnectionDto:
      required:
      - connectionId
      - modificationAttributes
      type: object
      properties:
        connectionId:
          type: string
          description: Connection ID which customer want to modify
          example: null
        modificationAttributes:
          type: object
          additionalProperties:
            type: string
            description: 'Type of reference data and new value, ex: bandwidth, 100 Mbps'
            example: null
          description: 'Type of reference data and new value, ex: bandwidth, 100 Mbps'
          example: null
      example: null
    CarrierEthernetLine:
      type: object
      properties:
        interconnectA:
          $ref: '#/components/schemas/InterconnectDto'
        interconnectB:
          $ref: '#/components/schemas/InterconnectDto'
        customerReference:
          type: string
          description: Optional custom name of the line
          example: null
        lineType:
          type: string
          enum:
          - PRIMARY
          - SECONDARY
          example: null
        serviceId:
          type: string
          example: null
        vlanB:
          type: integer
          description: VLAN of interconnect B
          format: int32
          example: null
        additionalAttributes:
          type: object
          additionalProperties:
            type: string
            description: Additional attributes of the line, depending on the service type. For more info please check the details in the service description section.
            example: null
          description: Additional attributes of the line, depending on the service type. For more info please check the details in the service description section.
          example: null
        vlanA:
          type: integer
          description: VLAN of interconnect A
          format: int32
          example: null
      description: Connection lines details
      example: null
    ConnectionStatus:
      type: object
      properties:
        connectionStatus:
          type: string
          example: null
        connectionId:
          type: string
          example: null
      example: null
    CloudConnectOrderLine:
      required:
      - cloudServiceKey
      - interconnect
      - lineType
      type: object
      properties:
        vlan:
          type: integer
          description: Optional field for manual VLAN assignment. Ignored in case 'autoVlanAssignment' is set to 'true'
          format: int32
          example: null
        customerReference:
          type: string
          description: Optional custom name of the line
          example: null
        lineType:
          type: string
          enum:
          - PRIMARY
          - SECONDARY
          example: null
        cloudServiceKey:
          type: string
          description: Service key assigned by Cloud Service Provider
          example: null
        interconnect:
          type: string
          example: null
        additionalAttributes:
          type: object
          additionalProperties:
            type: string
            description: Additional attributes of the line, depending on the service type. For more info please check the details in the service description section.
            example: null
          description: Additional attributes of the line, depending on the service type. For more info please check the details in the service description section.
          example: null
      description: Connection lines details
      example: null
    InterconnectDto:
      type: object
      properties:
        capacityLabel:
          type: string
          description: Capacity display label
          example: null
        portMode:
          type: string
          description: Interconnect port mode
          example: null
        city:
          type: string
          description: Interconnect city
          example: null
        usage:
          type: number
          description: Average usage rate percentage for interconnect
          example: null
        datacenter:
          type: string
          description: Interconnect datacenter
          example: null
        label:
          type: string
          description: Interconnect name
          example: null
        type:
          type: string
          description: Interconnect type
          enum:
          - ACCESS_LINE
          - MARKETPLACE
          example: null
        capacity:
          type: string
          description: Capacity (Bandwidth reference data ID)
          example: null
        houser:
          type: string
          description: Interconnect houser
          example: null
        portTag:
          type: string
          description: Interconnect port tag
          example: null
        additionalData:
          type: object
          additionalProperties:
            type: string
            description: Additional data
            example: null
          description: Additional data
          example: null
        id:
          type: string
          description: Interconnect service ID
          example: null
        countryIso3:
          type: string
          description: Interconnect Country ISO3 code
          example: null
        status:
          type: string
          description: Sirius status
          example: null
      description: Interconnect B details
      example: null
    CloudConnectOrder:
      required:
      - bandwidth
      - cloudServiceProvider
      - cloudServiceRegion
      - companyName
      - contractTerm
      - currency
      - lines
      - protectionScheme
      type: object
      properties:
        autoVlanAssignment:
          type: boolean
          description: 'Optional flag, set it to ''false'' to use provided VLANs instead of auto-assigned ones (Default value: true)'
          default: true
          example: null
        contactEmailAddress:
          type: string
          description: Requester email address
          example: null
        serviceType:
          type: string
          enum:
          - CLOUD_CONNECT
          default: CLOUD_CONNECT
          example: null
        customerComment:
          maxLength: 310
          minLength: 0
          type: string
          description: This field should not contain more than 310 symbols. Any comments are for internal use only and will not be considered as part of the automated delivery process
          example: null
        bandwidth:
          type: string
          description: Connection bandwidth (Reference data identifier)
          example: null
        companyName:
          pattern: ^[a-zA-Z0-9]{1,50}$
          type: string
          description: Company name. Field should only contain letters and numbers
          example: null
        cloudServiceProvider:
          type: string
          description: Cloud Service Provider (Reference data identifier)
          example: null
        contractTerm:
          type: string
          description: Minimal order term (Reference data identifier)
          example: null
        currency:
          type: string
          description: Order currency (Reference data identifier)
          example: null
        customerPurchaseReference:
          maxLength: 50
          minLength: 0
          type: string
          description: Optional purchase reference. Field should contain no more than 50 symbols
          example: null
        id:
          type: integer
          format: int64
          readOnly: true
          example: null
        protectionScheme:
          type: string
          description: Connection protection scheme (Reference data identifier)
          example: null
        lines:
          type: array
          description: Connection lines details
          items:
            $ref: '#/components/schemas/CloudConnectOrderLine'
          example: null
        cloudServiceRegion:
          type: string
          description: Cloud Service Region (Reference data identifier)
          example: null
        additionalAttributes:
          type: object
          additionalProperties:
            type: string
            description: Additional attributes of the connection, depending on the service type. For more info please check the details in the service description section.
            example: null
          description: Additional attributes of the connection, depending on the service type. For more info please check the details in the service description section.
          example: null
      example: null
    CloudConnectConnection:
      type: object
      properties:
        contactEmailAddress:
          type: string
          description: Requester email address
          example: null
        serviceType:
          type: string
          enum:
          - CLOUD_CONNECT
          default: CLOUD_CONNECT
          example: null
        contractLabel:
          type: string
          description: Minimal order term label
          example: null
        customerComment:
          type: string
          description: Optional customer comment
          example: null
        bandwidth:
          type: string
          description: Connection bandwidth (Reference data identifier)
          example: null
        companyName:
          type: string
          description: Company name
          example: null
        cloudServiceProviderLabel:
          type: string
          description: Cloud Service Provider label
          example: null
        bandwidthLabel:
          type: string
          description: Connection bandwidth label
          example: null
        currencyLabel:
          type: string
          description: Currency label
          example: null
        protectionSchemeLabel:
          type: string
          description: Connection protection scheme label
          example: null
        price:
          type: string
          description: Price
          example: null
        cloudServiceProvider:
          type: string
          description: Cloud Service Provider (Reference data identifier)
          example: null
        cloudServiceRegionLabel:
          type: string
          description: Cloud Service Region label
          example: null
        contractTerm:
          type: string
          description: Minimal order term (Reference data identifier)
          example: null
        connectionId:
          type: integer
          description: ID
          format: int64
          readOnly: true
          example: null
        currency:
          type: string
          description: Currency (Reference data identifier)
          example: null
        customerPurchaseReference:
          type: string
          description: Optional purchase reference
          example: null
        protectionScheme:
          type: string
          description: Connection protection scheme (Reference data identifier)
          example: null
        activationDate:
          type: string
          description: Connection activation date
          example: null
        lines:
          type: array
          description: Connection lines
          items:
            $ref: '#/components/schemas/CloudConnectLine'
          example: null
        cloudServiceRegion:
          type: string
          description: Cloud Service Region (Reference data identifier)
          example: null
        additionalAttributes:
          type: object
          additionalProperties:
            type: string
            description: Additional attributes of the connection, depending on the service type. For more info please check the details in the service description section.
            example: null
          description: Additional attributes of the connection, depending on the service type. For more info please check the details in the service description section.
          example: null
        status:
          type: string
          description: Connection status
          example: null
      example: null
    CarrierEthernetConnection:
      type: object
      properties:
        contactEmailAddress:
          type: string
          description: Requester email address
          example: null
        serviceType:
          type: string
          enum:
          - CARRIER_ETHERNET
          default: CARRIER_ETHERNET
          example: null
        contractLabel:
          type: string
          description: Minimal order term label
          example: null
        customerComment:
          type: string
          description: Optional customer comment
          example: null
        bandwidth:
          type: string
          description: Connection bandwidth (Reference data identifier)
          example: null
        companyName:
          type: string
          description: Company name
          example: null
        bandwidthLabel:
          type: string
          description: Connection bandwidth label
          example: null
        currencyLabel:
          type: string
          description: Currency label
          example: null
        protectionSchemeLabel:
          type: string
          description: Connection protection scheme label
          example: null
        price:
          type: string
          description: Price
          example: null
        contractTerm:
          type: string
          description: Minimal order term (Reference data identifier)
          example: null
        connectionId:
          type: integer
          description: ID
          format: int64
          readOnly: true
          example: null
        currency:
          type: string
          description: Currency (Reference data identifier)
          example: null
        customerPurchaseReference:
          type: string
          description: Optional purchase reference
          example: null
        protectionScheme:
          type: string
          description: Connection protection scheme (Reference data identifier)
          example: null
        activationDate:
          type: string
          description: Connection activation date
          example: null
        lines:
          type: array
          description: Connection lines details
          items:
            $ref: '#/components/schemas/CarrierEthernetLine'
          example: null
        additionalAttributes:
          type: object
          additionalProperties:
            type: string
            description: Additional attributes of the connection, depending on the service type. For more info please check the details in the service description section.
            example: null
          description: Additional attributes of the connection, depending on the service type. For more info please check the details in the service description section.
          example: null
        status:
          type: string
          description: Connection status
          example: null
      example: null
    ApiError:
      type: object
      properties:
        code:
          type: string
          description: Error code enum defined by the Portal
          example: null
        message:
          type: string
          description: General summary of the error
          example: null
        errors:
          type: array
          description: Detailed description of each occurred error
          items:
            type: string
            description: Detailed description of each occurred error
            example: null
          example: null
        status:
          type: integer
          description: HTTP status code
          format: int32
          example: null
        timestamp:
          type: string
          description: Timestamp of the error
          format: date-time
          example: null
      example: null
    CloudConnectLine:
      type: object
      properties:
        vlan:
          type: integer
          description: VLAN
          format: int32
          example: null
        customerReference:
          type: string
          description: Optional custom name of the line
          example: null
        lineType:
          type: string
          enum:
          - PRIMARY
          - SECONDARY
          example: null
        cloudServiceKey:
          type: string
          description: Service key assigned by Cloud Service Provider
          example: null
        serviceId:
          type: string
          example: null
        interconnect:
          $ref: '#/components/schemas/InterconnectDto'
        additionalAttributes:
          type: object
          additionalProperties:
            type: string
            description: Additional attributes of the line, depending on the service type. For more info please check the details in the service description section.
            example: null
          description: Additional attributes of the line, depending on the service type. For more info please check the details in the service description section.
          example: null
      description: Connection lines
      example: null