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Cisco ONS 15600 SDH Procedure Guide, R8.0
October 2007
Chapter18 DLPs F300 to F399
DLP- F353 Roll Two Cross-Connects on One Optical Circuit Using Automatic Routing
Figure18-18 Setting Roll Routing Preferences
Step13 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 Step14.) 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 path-protected
mesh network (PPMN) 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 PPMN portion of the complete circuit path.
•Link Diversity Only—Specifies that only link-diverse primary and alternate paths for PPMN
portions of the complete circuit path are needed. The paths might be node-diverse, but CTC does not
check for node diversity.
Step14 If you checked Route Automatically in Step12:
•If you checked Using Required Nodes/Spans, continue with Step15.
•If you checked only Review Route Before Creation, continue with Step16.
•If you did not check Using Required Nodes/Spans or Review Route Before Creation, continue with
Step 17.
Step15 If you checked Using Required Nodes/Spans in Step12:
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 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.