6-31
Cisco ONS 15454 Procedure Guide, R5.0
August 2005
Chapter 6 Create Circuits and VT Tunnels
NTP-A134 Create a Manually Routed VT Tunnel
Step 14 If you selected Using Required Nodes/Spans in Step 13:
a. Click Next.
b. In the Circuit Route Constraints area, click a span on the VT tunnel map.
c. Click Include to include the node or span in the VT tunnel. Click Exclude to exclude the node or
span from the VT tunnel. The order in which you choose included nodes and spans sets the VT
tunnel sequence. Click spans twice to change the circuit direction.
d. Repeat Steps b and c for each node or span you wish to include or exclude.
e. Review the VT tunnel route. To change the tunnel routing order, choose a node in 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 tunnel information.
Step 16 Click Finish. The Circuits window appears.
Step 17 Verify that the tunnel you just created appears in the circuits list. VT tunnels are identified by VTT in
the Type column.
Stop. You have completed this procedure.
NTP-A134 Create a Manually Routed VT Tunnel
Note VT tunnels allow VT circuits to pass through intermediary ONS 15454s without consuming VT matrix
resources on the cross-connect card. VT tunnels can carry 28 VT1.5 circuits. In general, creating VT
tunnels is a good idea if you are creating many VT circuits from the same source and destination. Refer
to the “Circuits and Tunnels” chapter in the Cisco ONS 15454 Reference Manual for more information.
Step 1 Complete the “DLP-A60 Log into CTC” task on page 17-66 at the node where you will create the VT
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-A314 Assign a Name to a Port” task on page 20-8. If not, continue with Step 3.
Purpose This procedure creates a manually routed VT tunnel from source to
destination nodes.
Tools/Equipment None
Prerequisite Procedures NTP-A127 Verify Network Turn Up, page 6-4
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
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