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| Attribute Name | Type | Multiplicity | Description | Applied Stereotypes |
|---|---|---|---|---|
virtualLinkDescId | Identifier | 1 | Identifier of the NsVirtualLinkDesc information element. It uniquely identifies a VLD. | support: MANDATORY |
| vitualLinkDescProvider | String | 0..1 | Defines the organization generating the VLD. | support: Option |
| virtualLinkDescVersion | String | 1 | Specifies the version of the VLD. | support: MANDATORY |
| connectivityType | ConnectivityType | 1 | The ConnectivityType information element specifies the protocol exposed by a VL and the flow pattern supported by the VL. | support: MANDATORY |
| virtualLinkDf | VirtualLinkDf | 1..N | The VirtualLinkDf information element specifies properties for instantiating a VL according to a specific flavour. | support: MANDATORY |
| testAccess | String | 0..N | Specifies test access facilities expected on the VL (e.g. none, passive monitoring, or active (intrusive) loopbacks at endpoints). | support: MANDATORY |
| description | String | 0..1 | Provides human-readable information on the purpose of the VL (e.g. control plane traffic). | support: MANDATORY |
| security | SecurityParameters | 0..1 | Provides a signature to prevent tampering. | support: MANDATORY |