Overhead Circuits


(Network view only) The Overhead Circuits tab allows you to view information about overhead circuits on the network. Overhead circuits include DCC and IP tunnels, user data channels, and local and express orderwire (orderwire circuits require AIC-I cards). You can also create, delete, edit, and merge overhead circuits.

Item

Description

Circuit Name

Name of the circuit. The circuit name can be manually assigned or automatically generated.

Type

The circuit type. See Overhead Circuit Types for circuit type descriptions.

Status

The status of the circuit. See Overhead Circuit Statuses for circuit status descriptions.

Source

The circuit source in the format: node/slot/port "port name"/STS/VT. (Port name appears in quotes.) Node and slot always display; port "port name"/STS/VT might display, depending on the source card, circuit type, and whether a name is assigned to the port. If the circuit size is a concatenated size (3c, 6c, 12c, etc.), STSs used in the circuit are indicated by an ellipsis, for example, "S7..9," (STSs 7, 8, and 9) or S10..12 (STS 10, 11, and 12). Note the following:

  • If the port is on an ONS 15600 ASAP card, the port format is pluggable interface module (PIM)-pluggable port module (PPM)-port number.

  • If the port is on an ONS 15310-CL card and is anything other than an optical port, the port format is port type-port number, for example, pEC1-1. If the port is a DS-1 port, port number is not shown, for example, pDS1.

Destination

The circuit destination in same format as the circuit source.

Spans

The number of internode links that constitute the circuit. Right-clicking the column displays a shortcut menu from which you can choose to show or hide circuit span detail.

Create

Displays the Overhead Circuit Creation wizard, to create a new overhead circuit.

Edit

Displays the Edit Overhead Circuit dialog box, to edit the overhead circuit that is highlighted.

Delete

Deletes the overhead circuit that is highlighted.

Merge

Merges multiple orderwire cross-connects created in older CTC releases into one network-level CTC circuit.

Search

Displays the Circuit Name Search dialog box, to search for circuits based on circuit name.

Help

Displays context-sensitive help.