Figure 5-11 A Three-Node Blsr Before Adding A New Node - Cisco ONS 15327 User Documentation

Bidirectional Line Switched Rings

Figure 5-11 A three-node BLSR before adding a new node

West
West
Procedure: Add a BLSR Node
Perform these steps on-site and not from a remote location.
Draw a diagram, similar to
Step 1
diagram, identify the nodes, cards (slots) and spans (east or west) that will connect to the new node. This
information is essential to complete this procedure without error. For example, in
would circle Slot 1 (west) on Node 1, and Slot 2 (east) on Node 4.
Log into CTC and display the BLSR nodes in network view. Verify the following:
Step 2
•
•
•
If trouble is indicated, for example, a major alarm exists, resolve the problem before proceeding.
Install the OC-N cards in the ONS 15327 that you will add to the BLSR; use the
Step 3
Cards" procedure on page
through the node to ensure the cards are functioning properly.
Log into the new node and complete the BLSR setup.
Step 4
•
•
•
•
•
Cisco ONS 15327 User Documentation, R3.3
5-12
Slot 1 Slot 2
Tx Rx Tx Rx
Node 1
Slot 1 Slot 2
Tx Rx Tx Rx
Node 3
Figure
All BLSR spans on the network map are green.
On the Alarms tab, no critical or major alarms are present, nor any facility alarms, such as LOS,
LOF, AIS-L, SF, and SD. In a BLSR, these facility conditions may be reported as minor alarms.
On the Conditions tab, no ring switches are active.
5-7. Ensure fiber cables are available to connect to the cards. Run test traffic
Provision the SONET DCC using the
Configure the BLSR timing using the
Enable the BLSR ports using the
If the BLSR will connect to third party equipment that cannot transport the K3 byte, the third party
equipment must connect to a Cisco ONS 15454 node. (The BLSR must be a mixed ring of ONS
15327s and ONS 15454s to remap the K3 byte. If connecting rings to third party equipment, refer
the Cisco ONS 15454 Procedure Guide.)
Provision the BLSR using the
Slot 1
Tx
East West
Slot 1
Tx
East West
5-11, for the BLSR installation where you will add the node. In the
"Create the BLSR DCC Terminations" procedure on page
"Set Up ONS 15327 Timing" procedure on page
"Enable the BLSR Ports" procedure on page
"Provision the BLSR" procedure on page 5-9
Chapter 5 SONET Topologies
Slot 2
Rx Tx Rx
East
Node 2
Slot 2
Rx Tx Rx
East
Node 4
Figure
"Install the BLSR Trunk
5-8.
5-11, you
5-8.
3-13.
June 2002