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Cisco ONS 15454 SDH Procedure Guide, R4.6
January 2004
Chapter4 Turn Up Node
DLP-D73 Create a 1+1 Protection Group
DLP-D73 Create a 1+1 Protection GroupStep 1 Verifythat the cards are installed according to the 1+1 requirements specified in Table 4-3 on page 4-27.
Step 2 In node view, click theProvisioning > Protection tabs.
Step 3 In the Protection Groups area, click Create.
Step 4 In the Create Protection Group dialog box, enter the following:
•Name—Typea name for the protection group. The name can have up to 32 alphanumeric (a-z, A-Z,
0-9) characters. Special characters are permitted. For TL1 compatibility,do not use question marks
(?), backslash (\), or double quote (“) characters.
•Type—Choose1+1 from the drop-down menu.
•Protect Port—Choose the protect port from the drop-down menu. The menu displays the available
STM-N ports. If STM-N cards are not installed, no ports appear in the drop-down menu.
After you choose the protect port, a list of ports availablefor protection appear under Available Ports. If
no cards are available,no ports appear. If this occurs, you cannot complete this task until you install the
physicalcards or preprovision the ONS 15454 SDH slots using the “DLP-D442 Preprovision a Slot” task
on page 5-5.
Step 5 Fromthe Available Ports list, choose the port that will be protected by the port you selected in the Protect
Port field. Click the top arrow button to move each port to the Working Ports list.
Step 6 Complete the remaining fields:
•Bidirectional switching—Select this check box if you want both Tx and Rx signals to switch to the
protectport when a failure occurs to one signal. Leave it unchecked if you want only the failed signal
to switch to the protect port.
•Revertive—Select this check box if you want traffic to revert to the working card after failure
conditions stay corrected for the amount of time entered in the Reversion Time field.
•Reversiontime—If Revertive is checked, click Reversion time and select a reversion time from the
drop-downmenu. The range is 0.5 to 12.0 minutes. The default is 5.0 minutes. Reversion time is the
amount of time that will elapse before the trafficreverts to the working card after conditions causing
the switch are cleared.
Step 7 Click OK.
Step 8 Return to your originating procedure (NTP).
Purpose Thistask creates a 1+1 protection group for any STM-N card/port (STM-1,
STM-1-8, STM-4, STM-4-4, STM-16, STM-16 AS, and STM-64).
Tools/Equipment Installed STM-N cards or preprovisioned slots
Prerequisite Procedures DLP-D60 Log into CTC, page 3-24
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher