Circuit Creation
Use the Circuit Creation page to set the circuit type for the circuit you create. The following table describes the Circuit Creation page fields and buttons.
 
Item
Description
Circuit Type
Defines the circuit type:
VC_HO_Path_Circuit—On the ONS 15454 SDH, creates a specific high-order path (VC4 or VC4 concatenated) circuit. On the ONS 15600 SDH, creates creates a specific high-order path (VC3, VC4, or VC4 concatenated) circuit.
VC_LO_Path_Circuit—On the ONS 15454 SDH, creates a low-order path (VC3, VC11 [with XC-VXC-10G card only], or VC12) circuit. On the ONS 15600 SDH, low-order paths are supported only for pass-through nodes.
VC_LO_Path_Tunnel—(ONS 15454 SDH only) 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—(ONS 15454 SDH only) 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—(ONS 15454 SDH only) 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—(ONS 15454 SDH only) 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—(ONS 15454 SDH only) Creates an OCHNC between ONS nodes that are provisioned for DWDM. Choose this option if you want to create an OCHNC or OCHNC DCN circuit.
OCHCC—(ONS 15454 SDH only) Creates a circuit from TXP/MXP client ports; used to manage multi-ring and meshed topologies.
OCH TRAIL—(ONS 15454 SDH only) Creates a circuit between optical trunk/client ports on DWDM nodes or between TXP/MXP trunk/client ports; used to manage multi-ring and meshed topologies.
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
(ONS 15454 SDH only) Appears 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.

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