Cisco ONS 15454 SDH, Руководство по процедурам

Страница: 239 / 860

6-65
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 6 Create Circuits and Low-Order Tunnels
NTP- D190 Create a Unidirectional High-Order Circuit with Multiple Drops
•
To route the circuit on a protected path, leave Fully Protected Path checked and continue with
Step 13 . Fully protected paths might or might not have SNCP path segments (with primary and
alternate paths), and the path diversity options apply only to SNCP path segments, if any exist.
• To create an unprotected circuit, uncheck Fully Protected Path and continue with Step 15 .
•
To route the circuit on an MS-SPRing protection channel, if available, uncheck Fully Protected
Path , check Protection Channel Access , click Yes in the Warning dialog box, then continue with
Step 15 .
Caution Circuits routed on MS-SPRing protection channels are not protected and are preempted during
MS-SPRing switches.
Step 13 If you selected Fully Protected Path in Step 12 and the circuit will be routed on an SNCP, choose one of
the following:
•
Nodal Diversity Required —Ensures that the primary and alternate paths within the SNCP ring
portions of the complete circuit path are nodally diverse.
• Nodal Diversity Desired —Specifies that node diversity is preferred, but if node diversity is not
possible, CTC creates fiber-diverse paths for the SNCP ring portion of the complete circuit path.
•
Link Diversity Only —Specifies that only fiber-diverse primary and alternate paths for SNCP ring
portions of the complete circuit path are needed. The paths might be node diverse, but CTC does not
check for node diversity.
Note
For manually routed circuits, CTC checks your manually provisioned path against the path
diversity option you choose. If the path does not meet the path diversity requirement that is
specified, an error message appears.
Step 14
If you selected Fully Protected Path in Step 12 and the circuit will be routed on an SNCP DRI, click the
Dual Ring Interconnect check box.
Step 15
Click Next . In the Route Review and Edit area, node icons appear so you can route the circuit manually.
The green arrows pointing from the selected node to other network nodes indicate spans that are
available for routing the circuit.
Step 16
Complete the “DLP-D98 Provision a High-Order Circuit Route” task on page 17-96 .
Step 17 Click Finish . After completing the circuit, the Circuits window appears.
Step 18
In the Circuits window, click the circuit that you want to route to multiple drops. The Delete, Edit, and
Search buttons become active.
Step 19 Click Edit . The Edit Circuit window appears with the General tab selected. Nodes in the DCC network
are shown graphically. Circuit source and destination information appears under the source and
destination nodes. To see a detailed view of the circuit, click
Show Detailed Map . You can rearrange
the node icons by pressing Ctrl while you drag and drop the icon to the new location.
Step 20
In the Edit Circuit dialog box, click the Drops tab. A list of existing drops appears.
Step 21 Click Create .
Step 22
In the Define New Drop dialog box, define the new drop:
a. Node—Choose the target node for the circuit drop.
b.
Slot—Choose the target card and slot.