Define New Drop


Use the Define New Drop dialog box to create new drops for unidirectional circuits and E-Series Ethernet circuits.

Item

Description

Node

Sets the circuit drop destination node.

Slot

Sets the circuit drop slot.

Port

Sets the circuit drop port.

VC4

Sets the circuit drop specific VC4.

Target Circuit Admin State

Lists the administrative states. An administrative state puts the circuit cross-connects into the related service state if network conditions allow:

  • No Change: The circuit state will not be changed.

  • unlocked: Puts the circuit cross-connects in the unlocked-enabled service state.

  • locked,disabled: Puts the circuit cross-connects in the locked-enabled,disabled service state. Traffic is not passed on the circuit.

  • locked,maintenance: Puts the circuit cross-connects in the locked-enabled,maintenance service state. The locked-enabled,maintenance service state does not interrupt traffic flow; it suppresses alarms and conditions and allows loopbacks to be performed on the circuit. Use the locked,maintenance administrative state for circuit testing or to suppress circuit alarms temporarily. Change the administrative state to unlocked; unlocked,automaticInService; or locked,disabled when testing is complete.

  • unlocked,automaticInService: Puts the circuit cross-connects in the unlocked-disabled,automaticInService service state. Alarms and conditions are suppressed. When the connections receive a valid signal, the service state automatically changes to unlocked-enabled.

  • locked,outOfGroup: (VCAT circuits only.) Puts the circuit cross-connects in the locked-enabled,outOfGroup service state. The locked,outOfGroup administrative state is used to place a VCAT member circuit out of the group and to stop sending traffic. locked,outOfGroup only applies to the cross-connect on the end node where the VCAT resides.

Apply to drop ports

Applies the state chosen in the Target Circuit Admin State field to the circuit drop port. CTC applies the circuit state to the port only in the following cases:

  • The circuit bandwidth is the same as the port bandwidth.

  • The port bandwidth is larger than the circuit and the circuit is the first circuit to use the drop port.

A Warning dialog box shows the ports where the circuit state could not be applied. If the box is unchecked, CTC does not change the state of the source and destination ports.

Route Automatically

If checked, CTC routes the circuit automatically based on the parameters that you specify on this pane.

Using Required Nodes/Spans

If checked, CTC displays a pane allowing you to choose nodes and spans to include in the automatically routed circuit path before circuit completion.

Review Route Before Creation

If checked, CTC allows you to review and modify the circuit route before circuit creation.

Fully Protected Path

If checked, CTC creates a fully protected circuit route based on the path diversity option you choose. Fully protected paths might or might not have SNCP path segments (with primary and alternate paths), and the path diversity options apply only to SNCP path segments, if any exist.

Nodal Diversity Required

Ensures that the primary and alternate paths within SNCP portions of the complete circuit drop path are nodally diverse.

Nodal Diversity Desired

Specifies that node diversity is preferred, but if node diversity is not possible, CTC creates fiber-diverse paths for the SNCP portion of the complete circuit drop path.

Link Diversity Only

Specifies that only fiber-diverse primary and alternate paths for SNCP portions of the complete circuit drop path are needed. The paths might be node-diverse, but CTC does not check for node diversity.

Protection Channel Access

If Fully Protected Path is not checked and the circuit is routed on an MS-SPRing, clicking this check box routes the circuit drop on an MS-SPRing PCA path. Circuits routed on PCAs are unprotected.

Finish

Creates the circuit drop.

Cancel

Cancels circuit drop creation.

Help

Displays context-sensitive help.