Figure 6-4 Setting Circuit Routing Preferences - Cisco ONS 15454 SDH Procedure Manual

NTP- D81 Create an Automatically Routed Low-Order VC12 Circuit
Figure 6-4
Set the circuit path protection:
Step 13
To route the circuit on a protected path, leave Fully Protected Path checked and continue with
•
Step
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
•
To route the circuit on an MS-SPRing protection channel, if available, uncheck Fully Protected
•
Path, check Protection Channel Access, click Yes in the Warning dialog box, and then continue
with
Caution Circuits routed on MS-SPRing protection channels are not protected. They are preempted during
MS-SPRing switches.
If you selected Fully Protected Path in
Step 14
the following:
Nodal Diversity Required—Ensures that the primary and alternate paths within 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 15 If you selected Fully Protected Path in
Dual Ring Interconnect check box.
Step 16 If you selected Using Required Nodes/Spans in
continue with
Click Next.
a.
b. In the Circuit Route Constraints For Auto Routing area, click a node or span on the circuit map.
Cisco ONS 15454 SDH Procedure Guide, R7.0
6-22
Setting Circuit Routing Preferences
14. CTC creates a fully protected circuit route based on the path diversity option you choose.
Step 16.
Step 18.
Chapter 6
Step 13 and the circuit will be routed on an SNCP, choose one of
Step 13 and the circuit will be routed on an SNCP DRI, check the
Step 12, complete the following substeps. If not,
Create Circuits and Low-Order Tunnels
Step 16.
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