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Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 6 Create Circuits and Low-Order Tunnels
NTP- D216 Create a Low-Order Path Tunnel for Port Grouping
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—Select this check box to review and edit the low-order tunnel route
before the circuit is created.
Step 13 If you selected Using Required Nodes/Spans in Step 12:
a. Click Next.
b. In the Circuit Route Constraints For Auto Routing area, click a span on the low-order tunnel map.
c. Click Include to include the node or span in the low-order tunnel. Click Exclude to exclude the node
or span from the low-order tunnel. The order in which you choose included nodes and spans sets the
low-order tunnel 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 low-order tunnel 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 14 If you selected Review Route Before Creation in Step 12:
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 15 Click Finish. The Circuits window appears.
Step 16 Verify that the tunnel you just created appears in the circuits list. Low-order tunnels are identified by
LOT in the Type column.
Stop. You have completed this procedure.
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