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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter5 SONET Topologies
Linear ADM Configurations
Figure5-34 Verifying working slots in a protection group
Step 3 Under Protection Groups, select the 1+1 protection group (that is, the group supporting the 1+1 span
cards).
Step 4 Under Selected Group, verify that the working slot/port is shown as “Working/Active.” If yes, go to Step
5. If the working slot says “Working/Standby” and the protect slot says “Protect/Active,” switch traffic
to the working slot:
a. Under Selected Group, select the protect slot, that is, the slot that says “Protect/Active.”
a. From the Switch Commands, select Manual.
b. Click Yes on the confirmation dialog box.
c. Under Selected Group, verify that the working slot/port says “Working/Active.” If so, continue to
Step (d). If not, clear the conditions that preven t the c ard fr om car rying w or king t raffic befo re
proceeding.
d. From the Switch Commands, select Clear. A Confirm Clear Operation dialog is displayed.
e. Click Yes on the confi rmati on dial og box.
Step 5 Repeat Step 4 for each group in the 1+1 Protection Groups list at all nodes that will be converted.
Step 6 For each node, delete the 1+1 OC-N protection group that supports the linear ADM span:
Note Deleting a 1+1 protection group may cause unequipped path (UNEQ-P) a lar ms to o ccur.
a. Click the Provisioning > Protection tabs (Figure 5-35).
b. From the Protection Groups list, choose the 1+1 group you w ant to dele te . C lick Delete.