Cisco ONS 15454 SDH - Figure 6-6 Setting Circuit Attributes for a Unidirectional Low-Order VC3 Circuit

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Cisco ONS 15454 SDH Procedure Guide, R7.0
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Chapter 6 Create Circuits and Low-Order Tunnels
NTP- D56 Create a Unidirectional Low-Order VC3 Circuit with Multiple Drops
Figure 6-6 Setting Circuit Attributes for a Unidirectional Low-Order VC3 Circuit
Step 9
Click Next.
Step 10 Complete the “DLP-D318 Provision a Low-Order VC3 Circuit Source and Destination” task on
page 20-9.
Step 11 In the Circuit Routing Preferences area, uncheck Route Automatically. When Route Automatically is
not selected, the Using Required Nodes/Spans and Review Route Before Circuit Creation check boxes
are unavailable.
Step 12 Set the circuit path protection:
• To route the circuit on a protected path, leave Fully Protected Path checked and continue with
Step 13. 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.
• To create an unprotected circuit, uncheck Fully Protected Path and continue with Step 16.
• To route the circuit on an MS-SPRing protection channel, if available, uncheck Fully Protected
Path, check Protection Channel Access, click Ye s in the Warning dialog box, then continue with
Step 16.
Caution Circuits routed on MS-SPRing protection channels are not protected and are preempted during
MS-SPRing switches.
Step 13 If you selected Fully Protected Path in Step 12 and the circuit will be routed on an SNCP, choose one of
the following:
• Nodal Diversity Required—Ensures that the primary and alternate paths within the SNCP ring
portions of the complete circuit 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 ring portion of the complete circuit path.
• Link Diversity Only—Specifies that only fiber-diverse primary and alternate paths for SNCP ring
portions of the complete circuit path are needed. The paths might be node diverse, but CTC does not
check for node diversity.
Step 14 If you selected Fully Protected Path in Step 12 and the circuit will be routed on an SNCP DRI, click the
Dual Ring Interconnect check box.