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Cisco ONS 15454 SDH Procedure Guide, R4.6
January 2004
Chapter 4 Turn Up Node
DLP-D71 Create a 1:1 Protection Group
DLP-D71 Create a 1:1 Protection Group
Step 1 Verify that the cards required for 1:1 protection are installed according to requirements specified in
Table 4-3.
Step 2 In node view, click the Provisioning > Protection tabs.
Step 3 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 menu.
• Protect Card—Choose the protect card from the drop-down menu. The menu displays cards
available for 1:1 protection. If no cards are available, no cards appear.
After you choose the protect card, the card available for protection appears under Available Cards. If no
cards are available, no cards appear. If this occurs, you can not 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 5-5.
Step 5 From the Available Cards list, choose the card that will be protected by the card selected in the Protect
Card drop-down menu. Click the top arrow button to move each card to the Working Cards list.
Step 6 Complete the remaining fields:
• Bidirectional switching—Not available for 1:1 protection.
• Revertive—Select this check box if you want traffic to revert to the working card after failure
conditions remain corrected for the amount of time entered in the Reversion Time field.
• Reversion time—If Revertive is checked, choose the reversion time from the drop-down menu. 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 Yes on the confirmation dialog box.
Step 8 Return to your originating procedure (NTP).
Purpose This task creates a 1:1 electrical card protection group.
Tools/Equipment Redundant E1-N-14, DS3i-N-12, E3-12, E1-42, or STM1E cards should be
installed in the shelf, or the ONS 15454 SDH slots must be provisioned for
two of these cards.
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