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Cisco ONS 15600 SDH Procedure Guide, R8.0
October 2007
Chapter18 DLPs F300 to F399
DLP- F347 Initiate an MS-SPRing Force Ring Switch
Note The MS-SPRing is incomplete and alarms are present until the node is connected to other
MS-SPRing nodes.
Step5 Return to your originating procedure (NTP).
DLP-F347 Initiate an MS-SPRing Force Ring Switch Caution The Force Switch Away command overrides normal protective switching mechanisms. Applying this
command incorrectly can cause traffic outages.
Caution Traffic is not protected during a Force protection switch.
Step1 From the View menu, choose Go to Network View.
Step2 Click the Provisioning > MS-SPRing tabs. Select the MS-SPRing.
Step3 Click Edit.
Step4 To apply a Force switch to the west line:
a. Right-click the west MS-SPRing port where you want to switch the MS-SPRing traffic and choose
Set WestProtection Operation.
Note If node icons overlap, drag and drop the icons to a new location. You can also return to
network view and change the positions of the network node icons, because MS-SPRing node
icons are based on the network view node icon positions.
Note For two-fiber MS-SPRings, the squares on the node icons represent the MS-SPRing working
and protect channels. You can right-click either channel.
b. In the Set West Protection Operation dialog box, choose FORCE RING from the drop-down list.
Click OK.
c. Click Yes in the two Confirm MS-SPRing Operation dialog boxes that appear.
Purpose Use this task to perform an MS-SPRing Force switch on an MS-SPRing
port. A Force ring switch will switch traffic off a span if there is no signal
degrade (SD), signal failure (SF), or lockout switch present on the span.
Tools/Equipment None
Prerequisite Procedures DLP-F181 Log into CTC, page 16-34
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Provisioning or higher