14-18
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 14 Add and Remove Nodes
NTP- D322 Remove an In-Service Node from a Linear ADM
Step 13 The Force Traffic to Protect Path page states that it is about to force the traffic from the working to
protect path for the terminal nodes. When you are ready to proceed, click Next.
Step 14 Follow each step as instructed by the wizard as it guides you through the process of refibering the
working path between nodes and forcing the traffic back to the working path.
Step 15 The Force Traffic to Working Path page states that it is about to force the traffic from the protect to
working path for the terminal nodes. When you are ready to proceed, click Next.
Step 16 The Completed page appears. This page is the final one in the process. Click Finish.
Stop. You have completed this procedure.
NTP-D322 Remove an In-Service Node from a Linear ADM
Note The 1+1 protection group must be unidirectional in order to delete a node from a linear ADM. If your
1+1 protection group is bidirectional, see the “DLP-D154 Modify a 1+1 Protection Group” task on
page 18-46 to change it to unidirectional. After you have removed the node from the linear group you
can then change the protection setting back to bidirectional.
Step 1 Complete the “DLP-D60 Log into CTC” task on page 17-49 at a node in the network where you will
remove the node.
Step 2 From the View menu, choose Go to Network View.
Step 3 Click the Alarms tab.
a. Verify that the alarm filter is not on. See the “DLP-D227 Disable Alarm Filtering” task on
page 19-25 as necessary.
b. Verify that no unexplained alarms appear on the network. If unexplained alarms appear, resolve
them before continuing. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide if necessary.
Step 4 Click the Conditions tab. Verify that no unexplained conditions appear on the network. If unexplained
conditions appear, resolve them before continuing. Refer to the Cisco ONS 15454 SDH Troubleshooting
Guide if necessary.
Step 5 On the network map, double-click a node in the 1+1 protection group that is adjacent to the node you
intend to remove from the group (the target node).
Step 6 In node view, click the Maintenance > Protection tabs.
Step 7 Initiate a Force switch on the working port:
a. In the Protection Groups area, click the 1+1 protection group.
Purpose This procedure removes a single ONS 15454 SDH from a linear ADM
without disrupting traffic.
Tools/Equipment None
Prerequisite Procedures NTP-D38 Provision a Linear ADM Network, page 5-7
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Provisioning or higher
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