Cisco ONS 15327 Procedure Manual page 178

NTP-B182 Create a Manually Routed DS-1 Circuit
Click Next. On the VT Circuit panel in the Create area, choose one of the following:
Step 13
VT Tunnel on Transit Nodes—This option is available if the DS-1 circuit passes through a node that
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does not have a VT tunnel, or if an existing VT tunnel is full. VT tunnels allow VT circuits to pass
through ONS 15327s without consuming cross-connect card resources. 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 Cisco ONS 15327 Reference Manual for more
information.
VT Aggregation Point—This option is available if you are creating a DS-1 circuit to an OC-N port.
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A VT aggregation point (VAP) allows VT1.5 circuits to be routed through a node using one STS
connection on the cross-connect card matrix rather than multiple connections on the VT1.5 matrix.
If available, choose one of the following:
–
–
None—Choose this option if you do not want to create a VT tunnel or a VAP. This will be the only
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available option if CTC cannot create a VT tunnel or VAP.
If you chose VT Aggregation Point, complete the following substeps. If not, continue with
Step 14
Click Next.
a.
On the VT Aggregation Point Destination panel, click the node that you want to be the VAP
b.
destination, then click Add Destination.
Click Next. In the Route Review and Edit area, node icons appear for you to route the circuit. The circuit
Step 15
source node is selected. Green arrows pointing from the source node to other network nodes indicate
spans that are available for routing the circuit.
Complete the
Step 16
you are creating.
Click Finish. CTC will compare your manually-provisioned circuit route with the specified path
Step 17
diversity option you chose in
CTC displays an error message and allows you to change the circuit path. If you entered more than 1 in
the Number of Circuits field, the Circuit Creation dialog box appears for you to create the remaining
circuits. Repeat this procedure for each additional circuit.
Step 18 When all the circuits are created, the main Circuits window appears. Verify that the circuit(s) you created
are correct.
Step 19 Complete the
test circuit.
Stop. You have completed this procedure.
Cisco ONS 15327 Procedure Guide, R4.0
5-12
Use source as the STS grooming end—Creates the VAP on the DS-1 circuit source node. This
option is available only if the DS-1 circuit originates on an OC-N card.
Use destination as the STS grooming end—Creates the VAP on the DS-1 circuit destination
node. This option is available only if the DS-1 circuit terminates on an OC-N card.
"DLP-B96 Provision a DS-1 or DS-3 Circuit Route" task on page 5-29
Step 11. If the path does not meet the specified path diversity requirement,
"NTP-B135 Test Electrical Circuits" procedure on page
Chapter 5 Create Circuits and VT Tunnels
Step
for the DS-1 circuit
5-37. Skip this step if you built a
March 2003
16.