14-11
Cisco ONS 15454 Procedure Guide, R5.0
December 2004
Chapter 14 Add and Remove Nodes
NTP-A294 Remove a Path Protection Node
Step 20
Click the
Circuits
tab and verify that no incomplete circuits are present.
Note
If the circuits take more than a minute to appear, log out of CTC, then log back in.
Step 21
Complete the
“DLP-A198 Clear a Path Protection Force Switch” task on page 18-70
to clear the
protection switch.
Step 22
According to local site practice, complete the
“NTP-A177 Path Protection Acceptance Test” procedure
Stop. You have completed this procedure.
NTP-A294 Remove a Path Protection Node
Caution
The following procedure minimizes traffic outages during node removals.
Caution
If you remove a node that is the only BITS timing source for the ring, you also remove the only source
of synchronization for all the nodes in that ring. Circuits that connect to other networks that are
synchronized to a Stratum 1 clock will experience a high level of pointer adjustments, which might
adversely affect customer service.
Step 1
Draw a diagram of the path protection where you will remove the node. In the diagram, identify the
following:
•
The node that is connected through its west port to the node that will be removed.
•
The node that is connected through its east port to the node that will be removed.
Step 2
Complete the
“DLP-A60 Log into CTC” task on page 17-66
at a node in the network where you will
remove a path protection node.
Step 3
Complete the
“DLP-A298 Check the Network for Alarms and Conditions” task on page 19-63
to verify
that the path protection is free of alarms. If trouble is indicated (for example, a major alarm exists),
resolve the problem before proceeding. See
or, if necessary, refer to the
Cisco ONS 15454 Troubleshooting Guide
.
Step 4
Complete the
“DLP-A333 Delete Circuits” task on page 20-21
for circuits that originate or terminate in
the node you will remove. (If a circuit has multiple drops, delete only the drops that terminate on the
node you are deleting.)
Purpose
This procedure removes a path protection or multiple path protection
configurations from a node.
Tools/Equipment
None
Prerequisite Procedures
NTP-A44 Provision Path Protection Nodes, page 5-20
Required/As Needed
As needed
Onsite/Remote
Onsite
Security Level
Provisioning or higher
Summary of Contents for ONS 15454 Series
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