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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 7 Card Provisioning
Converting DS-1 and DS-3 Cards From 1:1 to 1:N Protection
To create 1:1 protection for DS-1 and DS-3 cards, see the “Creating Protection Groups” section on
page 3-9.
Procedure: Convert DS1-14 Cards From 1:1 to 1:N Protection
Note This procedure assumes DS1-14 cards are installed in Slots 1 through 6 and/or Slots 12 through 17.
The DS1-14 cards in Slots 3 and 15, which are the protection slots, will be replaced with DS1N-14
cards. The ONS 15454 must run CTC Release 2.0 or later. The procedure also requires at least one
DS1N-14 card and a protection group with DS1-14 cards.
Step 1 In node view, click the Maintenance > Protection tabs.
Step 2 Click the protection group that contains Slot 3 or Slot 15 (where you will install the DS1N-14 card).
Step 3 Make sure the slot you are upgrading is not carrying working traffic. In the Selected Group list, the
protect slot must say Protect/Standby (shown in Figure 7-8 on page 7-32) and not Protect/Active. If the
protect slot status is Protect/Active, use the following steps to switch traffic to the working card:
a. Under Selected Group, click the protect card.
b. Next to Switch Commands, click Switch.
The working slot should change to Working/Active and the protect slot should change to
Protect/Standby. If they do not change, do not continue. Troubleshoot the working card and slot to
determine why the card cannot carry working traffic.
c. Next to Switch Commands, select Clear.