Cisco ONS 15454 SDH - Automatically

13-7
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 13 Convert Network Configurations
NTP- D318 Convert an Unprotected Point-to-Point or Linear ADM to a Two-Fiber MS-SPRing Automatically
• Ring Name—Assign a ring name. The name can be from 1 to 6 characters in length. Any
alphanumeric 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 reversions can be set to Never.
Step 7 Click Next. If the network graphic appears, go to Step 8.
If CTC determines that a MS-SPRing cannot be created, for example, not enough optical cards are
installed or it finds circuits with subnetwork connection protection (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.
c. Depending on the problem, click Back to start over or click Cancel to cancel the operation.
d. Complete the “NTP-D40 Provision MS-SPRing Nodes” procedure on page 5-10, making sure all
steps are completed accurately, then start this procedure again.
Step 8 In the network graphic, double-click a MS-SPRing span line. If the span line is DCC connected to other
MS-SPRing cards that constitute a complete ring, the lines turn blue. If the lines do not form a complete
ring, double-click span lines until a complete ring is formed. Click Next.
Step 9 The SNCP to MS-SPRing Topology Conversion dialog box appears. The dialog box states that the
system is about to force traffic to the shortest SNCP paths. Click Next to continue.
Step 10 Another dialog box appears, stating that the force has been applied to the shortest SNCP path. Click
Finish. If the MS-SPRing window appears with the MS-SPRing you created, go to Step 11.
If a “Cannot Create MS-SPRing” or “Error While Creating MS-SPRing” message appears, complete the
following:
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.
c. Depending on the problem, click Back to start over or click Cancel to cancel the operation.
d. Complete the “NTP-D40 Provision MS-SPRing Nodes” procedure on page 5-10, making sure all
steps are completed accurately, then start this procedure again.
Note Some or all of the following alarms may briefly appear during MS-SPRing setup: E-W
MISMATCH, RING MISMATCH, APSCIMP, APSDFLTK, and MS-SPRingOSYNC.
Step 11 Verify the following:
• On the network map, a green span line appears between all MS-SPRing nodes.
• All E-W MISMATCH, RING MISMATCH, APSCIMP, DFLTK, and MS-SPRingOSYNC alarms are
cleared.
Stop. You have completed this procedure.