Cisco ONS 15454 Series Procedure Manual page 358

NTP-A240 Remove a BLSR Node
Complete the
Step 10
passing through the target node enter and exit the node on the same STS and/or VT. K3 extension byte
mapping is supported on all ONS 15600 OC-48 and OC-192 line cards, as well as the ONS 15454 OC-48
AS card.
Step 11 From the View menu, choose Go to Network View.
Referring to the diagram created in
Step 12
Switch" task on page 20-3
from it. You must perform a Force switch at each port connected to the target node. For example, in
Figure
Click the Alarms tab.
Step 13
a. Verify that the alarm filter is not on. See the
page 19-17
b. Verify that no unexplained alarms appear on the network. If alarms appear, investigate and resolve
them before continuing. Refer to the Cisco ONS 15454 Troubleshooting Guide for procedures.
Remove the fiber connections between the node being removed and the two neighboring nodes.
Step 14
Step 15 If the two nodes that will be connected after the BLSR node is removed have OC-48 AS trunk (span)
cards and their K3 bytes were remapped, complete the
Mapping" task on page
Reconnect the fiber of the two neighboring nodes directly, west port to east port. For example, in
Step 16
Figure
Complete the following substeps:
Step 17
From the View menu, choose Go to Other Node. Choose one of the newly connected nodes and
a.
click OK.
b. Click the Provisioning > BLSR tabs.
c. Choose the BLSR that originally contained the removed node, and then click Ring Map.
d. Wait until the removed node is no longer listed.
Repeat steps
e.
Complete the
Step 18
Click the History tab. Verify that the BLSR_RESYNC condition appears for every node in the BLSR.
Step 19
Complete the
Step 20
protection switches.
According to local site practice, complete the
Step 21
on page
Complete the
Step 22
Log back into a node on the reduced ring. In the CTC Login dialog box, uncheck the Disable Network
Step 23
Discovery check box.
Note
Click the Circuits tab and verify that no incomplete circuits are present. If incomplete circuits appear,
Step 24
repeat Steps
Cisco ONS 15454 Procedure Guide, R5.0
14-8
"DLP-A442 Verify Pass-Through Circuits" task on page 21-23
at each node that connects to the target (removal) node to force traffic away
14-3, you would perform a Force switch on the east port of Node 3 and the west port of Node 1.
as necessary.
21-8. If not, continue with
14-3, the east port of Node 3 (Slot 12) connects to the west port of Node 1 (Slot 5).
a through d for the other newly connected node in the BLSR.
"DLP-A196 Delete a BLSR from a Single Node" task on page
"DLP-A194 Clear a BLSR Force Ring Switch" task on page 18-66
5-13.
"DLP-A371 Remove Pass-through Connections" task on page
The deleted node will appear in network view until all SDCC terminations are deleted. To delete
SDCC terminations, complete the
page 18-23.
22 and 23.
Step 4, complete the "DLP-A303 Initiate a BLSR Force Ring
"DLP-A227 Disable Alarm Filtering" task on
"DLP-A422 Verify BLSR Extension Byte
Step 16.
"NTP-A175 Two-Fiber BLSR Acceptance Test" procedure
"DLP-A156 Delete a Section DCC Termination" task on
Chapter 14 Add and Remove Nodes
to verify that circuits
18-68.
to remove the Force
20-55.
December 2004