Cisco ONS 15310-MA SDH Procedure Manual page 257

Chapter 13 Add and Remove Nodes
Draw a diagram of the path protection configuration where you will remove the node. In the diagram,
Step 1
identify the following:
The node that is connected through its west port to the node that will be removed (the target node)
•
The node that is connected through its east port to the target node
•
Log into a node in the network where you want to remove a path protection node. See the
Step 2
Log into CTC" task on page 16-43
Complete the
Step 3
that the path protection configuration is free of alarms. If trouble is indicated (for example, a major alarm
exists), resolve the problem before proceeding. See
to the Cisco ONS 15310-MA SDH Troubleshooting Guide.
Complete the
Step 4
the target node. (If a circuit has multiple drops, delete only the drops that terminate on the node you are
deleting.)
Complete the
Step 5
passing through the target node enter and exit the node on the same VC high-order path or VC low-order
path.
Complete the
Step 6
spans connected to the node you are removing.
Step 7 Remove all fiber connections between the target node and the two neighboring nodes.
Reconnect the fiber of the two neighboring nodes directly, west port to east port.
Step 8
Note
Step 9 Exit CTC and log back in. See the
Step 10 Log into each newly connected node and open the Alarms tab.
Verify that the alarm filter is not on. See the
a.
page 16-107
b. Verify that the trunk cards/ports are free of alarms. Resolve any alarms before proceeding. Refer to
the Cisco ONS 15310-MA SDH Troubleshooting Guide.
Complete the
Step 11
Step 12 Complete the
Step 13 Click the Circuits tab and verify that no partial circuits are present.
(Optional) Complete the
Step 14
Stop. You have completed this procedure.
78-19416-01
"DLP-H163 Check the Network for Alarms and Conditions" task on page 17-56
"DLP-H115 Delete Circuits" task on page 17-19
"DLP-H168 Verify Pass-Through Circuits" task on page 17-59
"DLP-H166 Initiate a Path Protection Force Switch on a Span" task on page 17-58
If you delete a node that was in a login node group, you will see partial circuits for that node in
CTC network view. (Although it is no longer part of the ring, the removed node still reports to
CTC until it is no longer in a login node group.)
as necessary.
"DLP-H140 Verify Timing in a Reduced Ring" task on page
"DLP-H167 Clear a Path Protection Force Switch" task on page
"NTP-H32 Path Protection Acceptance Test" procedure on page
Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
for instructions.
Chapter 8, "Manage Alarms"
"DLP-H29 Log into CTC" task on page 16-43
"DLP-H88 Disable Alarm Filtering" task on
Before You Begin
or, if necessary, refer
for circuits that originate or terminate in
to verify that circuits
for instructions.
17-43.
17-59.
"DLP-H29
to verify
for all
4-11.
13-5