Ntp-B106 Remove A Path Protection Node - Cisco ONS 15327 Procedure Manual

Chapter 13 Add and Remove Nodes
(Optional) Complete the
Step 22
Stop. You have completed this procedure.

NTP-B106 Remove a Path Protection Node

Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
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
Caution
of synchronization for all the nodes in that ring. Circuits that connect to other networks which are
synchronized to a Stratum 1 clock will experience a high level of pointer adjustments, which might
adversely affect customer service.
Draw a diagram of the path protection where you will remove the node. In the diagram, identify the
Step 1
following:
•
•
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 2-23
Complete the
Step 3
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
Cisco ONS 15327 Troubleshooting Guide.
Complete the
Step 4
terminate in the target node. (If a circuit has multiple drops, delete only the drops that terminate on the
node you are deleting.)
Step 5 Complete the
connected to the node you are removing.
Traffic is not protected during a forced protection switch.
Caution
Remove all fiber connections between the target node and the two neighboring nodes.
Step 6
March 2003
"NTP-B177 Path Protection Acceptance Test" procedure on page
This procedure removes a node from a path protection.
None
NTP-B108 Back Up the Database, page 14-6
As needed
Onsite
Provisioning or higher
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.
"DLP-B302 Check BLSR or Path Protection Alarms and Conditions" task on page 13-5
"NTP-B152 Delete Circuits" procedure on page 8-15
"DLP-B197 Initiate a Path Protection Force Switch" task on page 13-16
for instructions.
Chapter 6, "Manage Alarms"
Cisco ONS 15327 Procedure Guide, R4.0
NTP-B106 Remove a Path Protection Node
4-24.
"DLP-B60
or, if necessary, refer to the
for circuits that originate or
for all spans
to
13-15