Ntp- A313 Remove An In-Service Node From A Linear Adm - Cisco ONS 15454 Series Procedure Manual

Chapter 14 Add and Remove Nodes
NTP-A313 Remove an In-Service Node from a Linear ADM
Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
The 1+1 protection group must be unidirectional in order to delete a node from a linear ADM. If your
Note
1+1 protection group is bidirectional, see the
page 18-22
can change the protection setting back to bidirectional.
Complete the
Step 1
remove the node.
From the View menu, choose Go to Network View.
Step 2
Click the Alarms tab.
Step 3
a.
b.
Click the Conditions tab. Verify that no unexplained conditions appear on the network. If unexplained
Step 4
conditions appear, resolve them before continuing. Refer to the Cisco ONS 15454 Troubleshooting
Guide if necessary.
On the network map, double-click a node in the 1+1 protection group that is adjacent to the node you
Step 5
intend to remove from the group (the target node).
In node view, click the Maintenance > Protection tabs.
Step 6
Initiate a Force switch on the working port:
Step 7
a.
b.
c.
d.
e.
Repeat
Step 8
Remove the fiber from the working ports of the target node.
Step 9
Connect the fiber between the working ports of the two nodes that were directly connected to either side
Step 10
of the target node.
December 2004
This procedure removes a node from a linear ADM without losing
traffic.
None
NTP-A38 Provision a Linear ADM Network, page 5-6
As needed
Onsite
Provisioning or higher
to change it to unidirectional. After you have removed the node from the linear group, you
"DLP-A60 Log into CTC" task on page 17-66
Verify that the alarm filter is not on. See the
page 19-17 as necessary.
Verify that no unexplained alarms appear on the network. If unexplained alarms appear, resolve
them before continuing. Refer to the Cisco ONS 15454 Troubleshooting Guide if necessary.
In the Protection Groups area, click the 1+1 protection group.
In the Selected Group area, click the working port.
Next to Switch Commands, click Force.
In the Confirm Force Operation dialog box, click Yes.
In the Selected Group area, verify that the following appears:
Protect port - Protect/Active [FORCE_SWITCH_TO_PROTECT] [PORT STATE]
–
Working port - Working/Standby [FORCE_SWITCH_TO_PROTECT], [PORT STATE]
–
Step 5 through Step 7 for the node that is connected directly to the other side of the target node.
NTP-A313 Remove an In-Service Node from a Linear ADM
"DLP-A154 Modify a 1+1 Protection Group" task on
at a node in the network where you will
"DLP-A227 Disable Alarm Filtering" task on
Cisco ONS 15454 Procedure Guide, R5.0
14-17