4-29
Cisco ONS 15454 SDH Procedure Guide, R4.6
January 2004
Chapter4 Turn Up Node DLP-D72 Create a 1:N Protection Group
DLP-D72 Create a 1:N Protection GroupStep 1 Verify that the cards are installed according to 1:N requirements specified inTable 4-3 on page 4-27.
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—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—Choose 1:N from the drop-down menu.
•Protect Card—Choose the protect card from the drop-down menu. The menu displays E1-N-14 and
DS3i-N-12 cards installed in Slots 4 or 17. If these cards are not installed, no cards appear in the
drop-down menu.
After you choose the protect card, a list of cards available for protection appear under AvailableCards.
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 5-5.
Step 5 From the AvailableCards list, choose the cards 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:N protection.
•Revertive—Always enabled for 1:N protection groups.
•Reversiontime—Click Reversion Time and select a 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:N protection group.
Tools/Equipment E1-N-14 and DS3i-N-12, E1-42N, or STM1E cards must be installed in
Slots 4 or 14, 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 3-24
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher