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Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 17 DLPs D1 to D99
DLP- D72 Create a 1:N Protection Group
• Reversion time—If Revertive is checked, choose the 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. The
reversion timer starts 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-D72 Create a 1:N Protection Group
Step 1 Verify that the cards are installed according to 1:N requirements specified in Table 4-1 on page 4-11.
Step 2 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:N from the drop-down list.
• Protect Card—Choose the protect card from the drop-down list. If these cards are not installed, no
cards appear in the drop-down list.
After you choose the protect card, a list of cards available for protection appear under Available Cards.
If no cards are available, no cards appear. If no cards are available, 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 Cards list, choose the cards that will be protected by the card selected in the
Protect Card drop-down list. 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:N protection.
• Revertive—Always enabled for 1:N protection groups.
Note When you perform a protection switch, do not change the protection group mode from
nonrevertive to revertive or from revertive to nonrevertive.
Purpose This task creates a 1:N protection group.
Tools/Equipment E1-N-14 and DS3i-N-12 cards or E1-42 cards must be installed in Slot 3
or 15, and cards of the same type must be installed on either side of a
corresponding protect card.
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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