6-10
Cisco ONS 15454 Procedure Guide, R5.0
August 2005
Chapter 6 Create Circuits and VT Tunnels
NTP-A181 Create an Automatically Routed DS-1 Circuit
c.
Click
Include
to include the node or span in the circuit. Click
Exclude
to exclude the node or span
from the circuit. The order in which you choose included nodes and spans is the order in which the
circuit is routed. 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 circuit route. To change the circuit routing order, choose a node in 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 16
Click
Next
. In the Create area of the VT Matrix Optimization panel, choose one of the following:
•
Create VT tunnel on transit nodes—This option is available if the DS-1 circuit passes through a node
that does not have a VT tunnel, or if an existing VT tunnel is full. VT tunnels allow VT circuits to
pass through ONS 15454s 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 15454 Reference Manual
for
more information.
•
Create VT aggregation point—This option is available if the DS-1 circuit source or destination is on
an EC1, DS3, DS3E, DS3i-N-12, DS3XM-6, DS3XM-12, or OC-N port on a BLSR, 1+1, or
unprotected node. VAPs collect DS-1s on an STS for handoff to non-ONS 15454 networks or
equipment, such as an IOF, switch, or digital access and cross-connect system (DACS). It allows
VT1.5 circuits to be routed through the node using one STS connection on the cross-connect card
matrix rather than multiple VT connections on the cross-connect card VT matrix. If you want to
aggregate the DS-1 circuit you are creating with others onto an STS for transport outside the
ONS 15454 network, choose one of the following:
–
STS grooming node is
[source node]
, VT grooming node is
[destination node]
—Creates the
VAP on the DS-1 circuit source node. This option is available only if the DS-1 circuit originates
on an EC1, DS3, DS3E, DS3i-N-12, DS3XM-6, DS3XM-12, or OC-N card.
–
STS grooming node is
[destination node]
, VT grooming node is
[source node]
—Creates the
VAP on the DS-1 circuit destination node. This option is available only if the DS-1 circuit
terminates on an EC1, DS3, DS3E, DS3i-N-12, DS3XM-6, DS3XM-12, or OC-N card.
•
None—Choose this option if you do not want to create a VT tunnel or a VAP. This is the only
available option if CTC cannot create a VT tunnel or VAP.
Step 17
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-A182 Create a Manually Routed DS-1 Circuit” procedure on page 6-11
Step 18
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.
Summary of Contents for ONS 15454 Series
Page 28: ...Tables xxviii Cisco ONS 15454 Procedure Guide R5 0 December 2004 ...
Page 44: ...Tasks xliv Cisco ONS 15454 Procedure Guide R5 0 December 2004 ...
Page 53: ...liii Cisco ONS 15454 Procedure Guide R5 0 December 2004 About this Guide Document Conventions ...
Page 55: ...lv Cisco ONS 15454 Procedure Guide R5 0 December 2004 About this Guide Document Conventions ...
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