6-9
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
Figure 6-2
Setting Circuit Routing Preferences for a DS-1 Circuit
Step 12
To set the circuit path protection, complete one of the following:
•
To route the circuit on a protected path, leave
Fully Protected Path
checked and continue with
. CTC creates a fully protected circuit route based on the path diversity option you choose.
Fully protected paths might or might not have path protection path segments (with primary and
alternate paths), and the path diversity options apply only to path protection path segments, if any
exist.
•
To create an unprotected circuit, uncheck
Fully Protected Path
and continue with
.
•
To route the circuit on a BLSR protection channel, if available, uncheck
Fully Protected Path
,
check
Protection Channel Access
, click
Yes
in the Warning dialog box, then continue with
Caution
Circuits routed on BLSR protection channels are not protected. They are preempted during BLSR
switches.
Step 13
If you selected Fully Protected Path in
and the circuit will be routed on a path protection, choose
one of the following:
•
Nodal Diversity Required—Ensures that the primary and alternate paths within path protection
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 path protection portion of the complete circuit path.
•
Link Diversity Only—Specifies that only fiber-diverse primary and alternate paths for path
protection portions of the complete circuit path are needed. The paths might be node-diverse, but
CTC does not check for node diversity.
Step 14
If you selected Fully Protected Path in
and the circuit will be routed on a path protection dual
ring interconnect (DRI), check the
Dual Ring Interconnect
check box.
Step 15
If you selected Using Required Nodes/Spans in
, complete the following substeps. If not,
continue with
.
a.
Click
Next
.
b.
In the Circuit Route Constraints area, click a node or span on the circuit map.
Summary of Contents for ONS 15454 Series
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