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Chapter 21
DLPs D400 to D499
Speed—Choose the MS-SPRing speed: STM-4, STM-16, or STM-64. The speed must match the
•
STM-N speed of the MS-SPRing trunk (span) cards.
Note
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 uppercase or lowercase 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 5
Click Next. If the network graphic appears, go to Step 6. If CTC determines 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:
Click OK.
a.
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.
Depending on the problem, click Back to start over or click Cancel to cancel the operation.
c.
Complete the
d.
steps are completed accurately, then start this procedure 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.
Step 7
Click Finish. If the MS-SPRing window appears with the MS-SPRing you created, go to
"Cannot Create MS-SPRing" or "Error While Creating MS-SPRing" message appears:
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
steps are completed accurately, then start this procedure again.
Note
Verify the following:
Step 8
•
On the network view graphic, a green span line appears between all MS-SPRing nodes.
•
All E-W MISMATCH, RING MISMATCH, APSCIMP, DFLTK, and MSSP-OSYNC alarms are
cleared. See the Cisco ONS 15454 SDH Troubleshooting Guide for alarm troubleshooting.
78-17194-01
If you are creating an STM-4 MS-SPRing and will eventually upgrade it to STM-16 or
STM-64, use the single-port STM-4 cards (OC12 IR/STM4 SH 1310, OC12 IR/STM4 SH
1310, or OC12 IR/STM4 SH 1310). You cannot upgrade an MS-SPRing on a four-port
STM-4 (OC12/STM4-4) because STM-16 and STM-64 cards are single-port cards.
"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, APSDFLTK, and MSSP-OSYNC.
DLP- D468 Create a Two-Fiber MS-SPRing Using the MS-SPRing Wizard
Cisco ONS 15454 SDH Procedure Guide, R7.0
5-10, making sure all
Step
8. If a
5-10, making sure all
21-45
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