17-64
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 17 DLPs D1 to D99
DLP- D73 Create a 1+1 Protection Group
• Reversion time—Click Reversion Time and select a reversion time from the drop-down list. The
range is 0.5 to 12.0 minutes. The default is 5.0 minutes. This is the amount of time that will elapse
before the traffic reverts to the working card after conditions causing the switch are cleared.
Step 7 Click OK, then click Ye s in the confirmation dialog box.
Step 8 Return to your originating procedure (NTP).
DLP-D73 Create a 1+1 Protection Group
Step 1 Verify that the cards are installed according to the 1+1 requirements specified in Table 4-1 on page 4-11.
Step 2 In node view, click the Provisioning > Protection tabs.
Step 3 In the Protection Groups area, click Create.
Step 4 In the Create Protection Group dialog box, enter the following:
• Name—Type a 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—Choose 1+1 from the drop-down list.
• Protect Port—Choose the protect port from the drop-down list. The list displays the available
STM-N ports. If STM-N cards are not installed, no ports appear in the drop-down list.
After you choose the protect port, a list of ports available for 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
physical cards or preprovision the ONS 15454 SDH slots using the “DLP-D442 Preprovision a Slot”
task on page 21-33.
Step 5 From the 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
protect port 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.
Purpose This task 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, STM-64, MRC-12,
and STM64-XFP cards.
Tools/Equipment Installed STM-N cards or preprovisioned slots
Prerequisite Procedures DLP-D60 Log into CTC, page 17-49
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
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