CHAPTER
20-1
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
20
DLPs D300 to D399
Note The terms "Unidirectional Path Switched Ring" and "UPSR" may appear in Cisco literature. These terms
do not refer to using Cisco ONS 15xxx products in a unidirectional path switched ring configuration.
Rather, these terms, as well as "Path Protected Mesh Network" and "PPMN," refer generally to Cisco's
path protection feature, which may be used in any topological network configuration. Cisco does not
recommend using its path protection feature in any particular topological network configuration.
DLP-D300 Clear an MS-SPRing Span Lockout
Caution Traffic is not protected during a span lockout.
Step 1 From the View menu, choose Go to Network View.
Step 2 Click the Provisioning > MS-SPRing tabs.
Step 3 Choose the MS-SPRing and click Edit.
Tip To move an icon to a new location, for example, to see MS-SPRing channel (port) information more
clearly, press Ctrl and drag and drop the icon to a new location on the Edit MS-SPRing network graphic.
Step 4 Right-click the MS-SPRing node channel (port) where the lockout will be cleared and choose
Set West Protection Operation or Set East Protection Operation.
Step 5 In the dialog box, choose CLEAR from the drop-down list. Click OK.
Purpose This task clears a multiplex section-shared protection ring (MS-SPRing)
span lockout. A lockout switches all traffic away from a span.
Tools/Equipment None
Prerequisite Procedures DLP-D60 Log into CTC, page 17-49
DLP-D299 Initiate an MS-SPRing Span Lockout, page 19-84
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
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