Flow Identifier Specification Editor Properties Tab

Use the Properties tab to enter information about the Flow Identifier specification.

Field	Use
Technology	Click Select to select the technology that applies to the flow identifier. Only packet technologies are available.
Provider Managed	Select if this specification represents a provider-managed flow identifier. In UIM, provider-managed flow identifiers are grouped into network address domains and resource pools from which they can be assigned. For example, an SP-VLANID is a provider-managed flow identifier. Unmanaged flow identifiers are not managed by service provers. They are typically received on an order and referenced with a service location on the service. For example, a CE-VLANID is unmanaged by the service provider. A number of Flow Identifier specifications are provided in the Ethernet reference cartridge. The identifier value must be unique across all flow identifiers associated with the same network address domain.
Stacking Level	Enter a stacking level for flow identifiers based on this specification. The stacking level is used in UIM to implement Q-in-Q stacking. Flow identifiers with lower stacking level values can be stacked within flow identifiers with higher values. Q-in-Q stacking enables VLAN IDs to be encapsulated (stacked) within each other to allow customer traffic with the same VLAN ID to travel safely through the same service provider network. Stacking levels are oriented from the customer site looking into the service provider network. A CE-VLANID is level 0 and an SP-VLAIND is level 1. Stacking levels are used in packet technologies other than Ethernet. For example, stacking levels support VPIs (virtual path identifiers) and VCIs (virtual channel identifiers) for ATM and DLCIs (data link connection identifiers) for Frame Relay.
Identifier Value Type	Select Numeric or Alphanumeric.
Untagged	For Ethernet flow identifiers, select to indicate that the specification can be used to create untagged flow identifiers. Untagged flow identifiers allow untagged frames to pass through an interface. Note: If this check box is selected, the specification can be used to create both tagged and untagged flow identifiers. If the check box is not selected, the specification can be used to create only tagged flow identifiers. Untagged flow identifiers must be named Untagged and cannot have an identifier. Otherwise, the identifier is required.
Minimum Identifier Value	Flow Identifier specifications include an Identifier characteristic. UIM users can use this characteristic to define a numeric tag that identifies data as it flows through the network. UIM users can create ranges of flow identifiers. Enter a minimum value to specify the lower boundary of ranges. If you enter a Minimum Identifier Value, you must also enter a Maximum Identifier Value.
Maximum Identifier Value	Flow Identifier specifications include an Identifier characteristic. UIM users can use this characteristic to define a numeric tag that identifies data as it flows through the network. UIM users can create ranges of flow identifiers. Enter a maximum value to specify the upper boundary of ranges. If you enter a Maximum Identifier Value, you must also enter a Minimum Identifier Value.