Circuits
The Circuits tab displays information about Cisco ONS network circuits including specific synchronous transport signal (STS) or virtual tributary (VT), and virtual concatenated (VCAT) circuits; VT tunnels; VT aggregation points; and dense wavelength division multiplexing (DWDM) optical channel network connections (OCHNCs). Circuit information includes status, state, source and destination node, slot, and port. You can view the Circuits tab in all views. The Scope field expands or decreases the scope of the circuits shown, for example, in card view you can change the scope to node or network to view all node or network circuits.
The name of the circuit. The circuit name can be manually assigned or automatically generated.
Circuit types are STS (STS circuit), VT (VT circuit), VTT (VT tunnel), IPT (IP tunnel), VAP (VT aggregation point), STS-V (STS VCAT circuit), and VT-V (VT VCAT circuit).
Circuit size depends on the source and destination card/port. VT circuits are 1.5. STS circuit sizes are 1, 3c, 6c, 9c, 12c, 18c, 24c, 36c, 48c, and 192c.
(DWDM circuits only) The OCHNC direction, either East to West or West to East. If the direction is West to East, the channel exits from the node through the LINE-TX port of the OSC-CSM or OPT-BST card (typically in Slot 17). If the direction is East to West, the channel exits from the node through the LINE-TX port of OSC-CSM or OPT-BST card (typically in Slot 1).
The type of circuit protection. See Circuit Protection Types for descriptions.
The circuit status. See Circuit Statuses for descriptions.
The circuit source in the format: node/slot/port "port name"/STS/VT. The port name appears in quotes. Node and slot always appear; port "port name"/STS/VT might appear, 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 (STSs 10, 11, and 12). Note the following:
If the port is on an ONS 15600 Any-Service, Any-Port (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 the port 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.
The circuit destination in the same format as the circuit source.
(ONS 15327 and ONS 15454 only) The number of VLANs used by an Ethernet circuit.
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.
The circuit state. See Circuit States and Circuit Creation for descriptions.
Displays the Circuit Creation wizard to create a new circuit.
Displays the Edit Circuits dialog box to edit the circuit highlighted in the Circuits table.
Displays the Circuits Filter dialog box to filter the display of circuits on the Circuits tab.
Displays the Search dialog box to search for circuits based on specific search criteria.
In node view, choose Network to display network circuits. In card view, choose Node to display node circuits or Network to display all network circuits.