Cisco Systems D200 manual 19-38, Setting Roll Routing Preferences

Chapter 19 DLPs D200 to D299

DLP- D236 Roll Two Cross-Connects on One Optical Circuit Using Automatic Routing

Figure 19-11 Setting Roll Routing Preferences

HOP

HOP

VC4-*

VC4-*

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Step 13 To route the circuit over a protected path, check Fully Protected Path. (If you do not want to route the circuit on a protected path, continue with Step 14.) CTC creates a primary and alternate circuit route (virtual SNCP) based on the following nodal diversity options. Select one of the following choices and follow subsequent window prompts to complete the routing:

•Nodal Diversity Required—Ensures that the primary and alternate paths within extended SNCP portions of the complete circuit path are nodally diverse.

•Nodal Diversity Desired—Specifies that node diversity should be attempted, but if node diversity is not possible, CTC creates link diverse paths for the extended SNCP portion of the complete circuit path.

•Link Diversity Only—Specifies that only link-diverse primary and alternate paths for extended SNCP 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 checked Route Automatically in Step 12:

• If you checked Using Required Nodes/Spans, continue with Step 15.

• If you checked only Review Route Before Creation, continue with Step 16.

• If you did not check Using Required Nodes/Spans or Review Route Before Creation, continue with Step 17.

Step 15 If you checked Using Required Nodes/Spans in Step 12:

a.In the Roll Route Constraints area, click a node or span on the circuit map.

b.Click Include to include the node or span in the circuit. Click Exclude to exclude the node/span from the circuit. The order in which you select included nodes and spans sets the circuit sequence. Click spans twice to change the circuit direction.

c.Repeat Step b for each node or span that you wish to include or exclude.

d.Review the circuit route. To change the circuit routing order, select a node in the Required Nodes/Lines or Excluded Nodes Links lists, then click the Up or Down buttons to change the circuit routing order. Click Remove to remove a node or span.

	Cisco ONS 15454 SDH Procedure Guide, R7.2
19-38	October 2007