Cisco ONS 15454 SDH Procedure Manual page 426

DLP- D14 Create a Four-Fiber MS-SPRing Using the MS-SPRing Wizard
Speed—Choose the MS-SPRing speed: STM-16 or STM-64. The speed must match the STM-N
•
speed of the MS-SPRing trunk (span) cards.
• Ring Name—Assign a ring name. The name can be from 1 to 6 characters in length. Any
alphanumeric character string is permissible, and upper and lower case letters can be combined. Do
not use the character string "All" in either upper or lower case letters. This is a TL1 keyword and
will be rejected. Do not choose a name that is already assigned to another MS-SPRing.
Reversion time—Set the amount of time that will pass before the traffic reverts to the original
•
working path following a ring switch. The default is 5 minutes. Ring reversion can be set to Never.
Span Reversion—Set the amount of time that will pass before the traffic reverts to the original
•
working path following a span switch. The default is 5 minutes. Span reversion can be set to Never.
Click Next. If the network graphic appears, go to Step 6. If Cisco Transport Controller (CTC) determines
Step 5
that an MS-SPRing cannot be created, for example, not enough optical cards are installed or it finds
circuits with SNCP selectors, a "Cannot Create MS-SPRing" message appears. If this occurs, complete
the following steps:
a. Click OK.
b. In the Create MS-SPRing window, click Excluded Nodes. Review the information explaining why
the MS-SPRing could not be created, then click OK.
Depending on the problem, click Back to start over or click Cancel to cancel the operation.
c.
d. Complete the
steps are completed accurately, then start this task again.
In the network graphic, double-click an MS-SPRing span line. If the span line is DCC connected to other
Step 6
MS-SPRing cards constituting a complete ring, the lines turn blue and the Finish button appears. If the
lines do not form a complete ring, double-click span lines until a complete ring is formed. When the ring
is DCC connected, go to the next step.
Click Next. In the Protect Port Selection section, choose the protect ports from the West Protect and
Step 7
East Protect columns.
Click Finish. If the MS-SPRing window appears with the MS-SPRing you created, go to
Step 8
"Cannot Create MS-SPRing" or "Error While Creating MS-SPRing" message appears:
a. Click OK.
In the Create MS-SPRing window, click Excluded Nodes. Review the information explaining why
b.
the MS-SPRing could not be created, then click OK.
c. Depending on the problem, click Back to start over or click Cancel to cancel the operation.
Complete the
d.
steps are completed accurately, then start this task again.
Note
Step 9 Verify the following:
• On the network view graphic, a green span line appears between all MS-SPRing nodes.
• All E-W-MISMATCH, RING-MISMATCH, APSCIMP, APSCDFLTK, and MSSP-OOSYNC
alarms are cleared. See the Cisco ONS 15454 SDH Troubleshooting Guide for alarm
troubleshooting.
Cisco ONS 15454 SDH Procedure Guide, R7.0
17-12
"NTP-D40 Provision MS-SPRing Nodes" procedure on page
"NTP-D40 Provision MS-SPRing Nodes" procedure on page
Some or all of the following alarms might briefly appear during MS-SPRing setup:
E-W-MISMATCH, RING-MISMATCH, APSCIMP, APSCDFLTK, and MSSP-OOSYNC.
Chapter 17 DLPs D1 to D99
5-10, making sure all
Step 9. If a
5-10, making sure all
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