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Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 6 Create Circuits and Low-Order Tunnels
NTP- D187 Create a Low-Order Aggregation Point
Step 10 Click Next.
Step 11 In the Circuit Destination area, choose the node where the low-order circuits aggregated by the LAP will
terminate from the Node drop-down list.
Step 12 Click Next.
Step 13 In the Circuit Routing Preferences area, choose Route Automatically. Two options are available; choose
either, both, or none based on your preferences.
• Using Required Nodes/Spans—Check this check box to specify nodes and spans to include or
exclude in the CTC-generated tunnel route.
Including nodes and spans for a circuit ensures that those nodes and spans are in the working path
of the circuit (but not the protect path). Excluding nodes and spans ensures that the nodes and spans
are not in the working or protect path of the circuit.
• Review Route Before Creation—Check this check box to review and edit the low-order tunnel route
before the circuit is created.
Step 14 If you selected Using Required Nodes/Spans in Step 13:
a. Click Next.
b. In the Circuit Route Constraints For Auto Routing area, click a span on the LAP map.
c. Click Include to include the node or span in the LAP. Click Exclude to exclude the node or span
from the LAP. The sequence in which you choose the nodes and spans sets the LAP sequence. Click
spans twice to change the circuit direction.
d. Repeat Step c for each node or span that you wish to include or exclude.
e. Review the LAP route. To change the tunnel routing order, choose a node from the Required
Nodes/Lines or Excluded Nodes Links lists, then click the Up or Down buttons to change the tunnel
routing order. Click Remove to remove a node or span.
Step 15 If you selected Review Route Before Creation in Step 13:
a. Click Next.
b. Review the tunnel route. To add or delete a tunnel span, choose a node on the tunnel route. Blue
arrows show the tunnel route. Green arrows indicate spans that you can add. Click a span arrowhead,
then click Include to include the span or Remove to remove the span.
c. If the provisioned tunnel does not reflect the routing and configuration you want, click Back to
verify and change the tunnel information.
Step 16 Click Finish. The Circuits window appears.
Step 17 Verify that the LAP you just created appears in the circuits list. LAPs are identified in the Type column.
Stop. You have completed this procedure.
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