Cisco Systems D200 DLP-D218 Provision SNCP Ring Selectors During Circuit Creation, 19-18, Purpose

Chapter 19 DLPs D200 to D299

DLP- D218 Provision SNCP Ring Selectors During Circuit Creation

DLP-D218 Provision SNCP Ring Selectors During Circuit Creation

Purpose	This task provisions subnetwork connection protection (SNCP) ring
	selectors during circuit creation. Use this task only if the circuit will be
	routed on an SNCP ring.
Tools/Equipment	None
Prerequisite Procedures	DLP-D60 Log into CTC, page 17-49
	You must have the Circuit Attributes page of the Circuit Creation wizard
	open.
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Note Provisioning SD-P or SF-P thresholds on the Circuit Attributes page of the Circuit Creation wizard sets the values only for SNCP-protected spans. The circuit source and destination use the node default values of 10E-4 for SD-P and 10E-6 for SF-P for unprotected circuits and for the source and drop of SNCP circuits.

Step 1 In the SNCP area of the Circuit Attributes page, set the SNCP path selectors:

•Provision working go & return on primary path—Check this box to route the working path on one fiber pair and the protect path on a separate fiber pair. This feature only applies to bidirectional SNCP circuits.

•Revertive—Check this box if you want traffic to revert to the working path when the conditions that diverted it to the protect path are repaired. If you do not choose Revertive, traffic remains on the protect path after the switch.

•Reversion time—If Revertive is checked, click the Reversion time field and choose a reversion time from the drop-down list. The range is 0.5 to 12.0 minutes. The default is 5.0 minutes. This is the amount of time that will elapse before the traffic reverts to the working path. Traffic can revert when conditions causing the switch are cleared.

•SF threshold—For high-order circuits, set the SNCP path-level signal failure (SF) bit error rate (BER) thresholds. Unavailable for low-order circuits.

•SD threshold—For high-order circuits, set the SNCP path-level signal degrade (SD) BER thresholds. Unavailable for low-order circuits.

•Switch on PDI-P—For high-order circuits, check this box if you want traffic to switch when an high-order payload defect indicator (PDI) is received. Unavailable for low-order circuits.

Step 2 Return to your originating procedure (NTP).

	Cisco ONS 15454 SDH Procedure Guide, R7.2
19-18	October 2007