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Cisco ONS 15454 SDH Procedure Guide, R7.0
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Chapter 6 Create Circuits and Low-Order Tunnels
NTP- D54 Create an Automatically Routed Low-Order VC3 Circuit
e.
Review the circuit route. To change the circuit routing order, choose a node from the Required
Nodes/Lines or Excluded Nodes Links lists and click the
Up
or
Down
buttons to change the circuit
routing order. Click
Remove
to remove a node or span.
Step 17
Click
Next
. In the VC LO Matrix Optimization page, choose one of the following:
•
Create VC LO tunnel on transit nodes—This option is available if the VC3 circuit passes through a
node that does not have a low-order tunnel, or if an existing low-order tunnel is full. Low-order
tunnels allow VC3 circuits to pass through ONS 15454 SDHs without consuming low-order
cross-connect card resources. 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
Cisco ONS 15454 SDH
Reference Manual
for more information.
•
Create VC LO aggregation point—This option is available if you are creating a VC3 circuit to an
STM-N port for handoff to non-ONS 15454 SDH networks or equipment, such as an IOF, switch, or
DACS. A LAP allows low-order circuits to be routed through a node using one VC4 connection on
the cross-connect card high-order matrix rather than multiple connections on the low-order matrix.
If you want to aggregate the low-order circuit you are creating with others onto an VC4 for transport
outside the ONS 15454 SDH network, choose one of the following:
–
VC4 grooming node is
source-node
, VC12 grooming node is
destination-node
—Creates the
LAP on the VC3 circuit source node. This option is available only if the VC3 circuit originates
on an STM-N card.
–
VC4 grooming node is
destination-node
, VC12 grooming node is
source-node
—Creates the
LAP on the VC12 circuit destination node. This option is available only if the VC3 circuit
terminates on an STM-N card.
•
None—Choose this option if you do not want to create a low-order tunnel or a LAP. This is the only
available option if CTC cannot create a low-order tunnel or LAP.
Step 18
If you selected Review Route Before Creation in
, complete the following substeps. If not,
continue with
a.
Click
Next
.
b.
Review the circuit route. To add or delete a circuit span, choose a node on the circuit route. Blue
arrows show the circuit 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 circuit does not reflect the routing and configuration you want, click
Back
to
verify and change circuit information. If the circuit needs to be routed to a different path, see the
“NTP-D55 Create a Manually Routed Low-Order VC3 Circuit” procedure on page 6-35
.
Step 19
Click
Finish
. One of the following results occurs, depending on the circuit properties you chose in the
Circuit Creation dialog box:
•
If you entered more than 1 in the Number of Circuits field and selected Auto-ranged, CTC
automatically creates the number of circuits entered in the Number of Circuits field. If auto-ranging
cannot complete all the circuits, for example, because sequential ports are unavailable at the source
or destination, a dialog box appears. Set the new source or destination for the remaining circuits,
then click
Finish
to continue auto-ranging. After completing the circuits, the Circuits window
appears.
•
If you entered more than 1 in the Number of Circuits field and did not choose Auto-ranged, the
Circuit Creation dialog box appears so you can create the remaining circuits. Repeat Steps
through
for each additional circuit. After completing the circuits, the Circuits window appears.
Step 20
In the Circuits window, verify that the new circuits appear in the circuits list.
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Страница 62: ...xxii Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 About this Guide ...
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Страница 414: ...16 4 Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 Chapter 16 Power Down the Node NTP D114 Power Down the Node ...
Страница 832: ...A 14 Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 Appendix A CTC Information and Shortcuts Equipment Inventory ...
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