Circuit Creation

Use the Circuit Creation page to set the circuit type that you will create. The following table describes the Circuit Creation page fields and buttons.

Item

Description

Circuit Type

Defines the circuit type:

  • VC_HO_Path_Circuit: Creates a specific high-order path (VC4 or VC4 concatenated) circuit.

  • VC_LO_Path_Circuit: Creates a low-order path (VC3, VC11 (with XC-VXC-10G card only), or VC12) circuit.

  • VC_LO_Path_Tunnel: Creates a VC low-order path tunnel. VC low-order path tunnels allow VC3, VC11 (with XC-VXC-10G card only), and VC12 circuits to pass through an ONS node without using low-order cross-connect resources on the cross-connect cards. Low-order circuits using tunnels use low-order cross-connect capacity only at the source and destination nodes. One low-order tunnel can carry three VC3s, and each VC3 can contain a VC3 circuit span, 28 VC11 circuit spans, or 21 VC12 circuit spans.

  • VC_LO_Path_Aggregation: Creates a low-order aggregation point (LAP). LAPs allow low-order VC12, VC11 (with XC-VXC-10G card only), and VC3 circuits to be aggregated into a VC4 for handoff to non-ONS 15454 SDH networks or equipment, such as interoffice facilities (IOFs), switches, or digital access cross-connect systems (DACS). The VC4 grooming end of the LAP requires an STM-N card. LAPs can be created on MS-SPRings, 1+1 protection groups, or unprotected nodes, but cannot be created on SNCP nodes.

  • VC_HO_Path_VCAT_Circuit: Creates a high-order path VCAT VC4 circuit. VC4-V circuits require ML-Series and FC_MR-4 cards at the circuit source and destination nodes.

  • VC_LO_Path_VCAT_Circuit: Creates a low-order path virtual concatenated VC circuit. VC-V circuits require ML-Series and FC_MR-4 cards at the circuit source and destination nodes.

  • OCHNC: Creates an OCHNC between ONS nodes that are provisioned for DWDM.

Num. of Circuits

(High-order path and low-order path circuits only.) Sets the number of circuits to be created.

For VC3 Port Grouping Only

Displays only with the VC_LO_PATH TUNNEL circuit option. Check this box for VC3 port grouping.

Auto-ranged

Creates identical (same source and destination) sequential circuits automatically. The check box is automatically selected if you enter more than 1 in the Num. of Circuits field. Unchecking the check box turns off autoranging.

Next

Displays the Circuit Attributes page.

Cancel

Cancels circuit creation.

Help

Displays context-sensitive help.