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Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 6 Create Circuits and Low-Order Tunnels
NTP- D134 Create a Manually Routed Low-Order Tunnel
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 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.
NTP-D134 Create a Manually Routed Low-Order Tunnel
Note Low-order tunnels allow low-order circuits to pass through intermediary ONS 15454 SDHs without
consuming low-order matrix resources on the cross-connect card. In general, creating low-order tunnels
is a good idea if you are creating many low-order circuits from the same source and destination. Refer
to the “Circuits and Tunnels” chapter in the Cisco ONS 15454 SDH Reference Manual for more
information.
Step 1 Complete the “DLP-D60 Log into CTC” task on page 17-49 at an ONS 15454 SDH on the network
where you will create the tunnel. If you are already logged in, continue with Step 2.
Step 2 If you want to assign a name to the tunnel source and destination ports before you create the circuit,
complete the “DLP-D314 Assign a Name to a Port” task on page 20-7. If you want CTC to assign a name
automatically based on circuit type, node name, and sequence number, continue with Step 4.
Step 3 From the View menu, choose Go to Network View.
Step 4 Click the Circuits tab, then click Create.
Step 5 In the Circuit Creation dialog box, complete the following fields:
• Circuit Type—Choose VC_LO_PATH TUNNEL.
• For VC3 Port Grouping Only—Leave this box unchecked.
Step 6 Click Next.
Step 7 Define the circuit attributes (Figure 6-8 on page 6-51):
Purpose This procedure creates a manually routed, low-order tunnel from source to
destination nodes.
Tools/Equipment None
Prerequisite Procedures NTP-D127 Verify Network Turn-Up, page 6-5
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
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