Ntp- A240 Remove A Blsr Node - Cisco ONS 15454 Series Procedure Manual

NTP-A240 Remove a BLSR Node
Note
In network view, right-click the new node and choose Update Circuits With The New Node from the
Step 28
shortcut menu. Verify that the number of updated circuits in the dialog box is correct.
If incomplete circuits are still present, refer to the Cisco ONS 15454 Troubleshooting Guide.
Step 29
Click the History tab. Verify that BLSR_RESYNC conditions appear for every node in the BLSR.
Step 30
Complete the
Step 31
switch from the east and west BLSR lines.
According to local site practice, complete the
Step 32
on page 5-13
Stop. You have completed this procedure.
NTP-A240 Remove a BLSR Node
Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
Caution The following procedure minimizes traffic outages during node removals. You will delete all circuits that
originate and terminate on the node that will be removed. In addition, you will verify that circuits passing
through the node do not enter and exit the node on different STSs and/or VTs. If they do, you will delete
and recreate the circuits, and traffic will be lost during this time.
According to local site practice, complete the
Step 1
page 15-4
Complete the
Step 2
from the BLSR.
Complete the
Step 3
Note
Create a diagram of the BLSR where you will remove the node. You can draw the BLSR manually, or
Step 4
print it from CTC by performing the following steps:
a.
Cisco ONS 15454 Procedure Guide, R5.0
14-6
If the circuits take more than a minute to appear, log out of CTC, then log back in.
"DLP-A194 Clear a BLSR Force Ring Switch" task on page 18-66
or the "NTP-A176 Four-Fiber BLSR Acceptance Test" procedure on page
This procedure removes a BLSR ring or multiple BLSR rings from a node.
None
NTP-A126 Create a BLSR, page 5-12
As needed
Onsite
Provisioning or higher
for all the nodes in the ring.
"DLP-A60 Log into CTC" task on page 17-66
"DLP-A195 Verify Timing in a Reduced Ring" task on page
If you remove a node that is the only building integrated timing supply (BITS) for the ring, you
also remove the only source of synchronization for all the nodes in that ring. Circuits that leave
the ring to connect to other networks synchronized to a Stratum 1 clock will experience a high
level of pointer adjustments, which might adversely affect traffic performance.
From the View menu, choose Go to Network View.
"NTP-A175 Two-Fiber BLSR Acceptance Test" procedure
"NTP-A108 Back Up the Database" procedure on
at the node that you are going to remove
Chapter 14 Add and Remove Nodes
to remove the ring
5-15.
18-67.
December 2004