Figure 5-38 Converting A Linear Adm To A Blsr - Cisco 15454-TCC - Network Processor Card Operation Manual

Linear ADM Configurations
Verify that the working slot is carrying traffic. If it is, continue to Step (d). If not, clear the conditions
c.
that prevent the card from carrying working traffic before proceeding.
From the Switch Commands, select Clear. A Confirm Clear Operation dialog is displayed.
d.
e. Click Yes on the confirmation dialog box.
Step 5 Repeat Step 4 for each group in the 1+1 Protection Groups list at all nodes that will be converted.
Step 6 For each node, delete the 1+1 OC-N protection group that supports the linear ADM span:
a. Click the Provisioning > Protection tabs.
b. From the Protection Groups list, choose the group you want to delete. Click Delete.
c. Click Yes on the confirmation dialog box.
Verify that no traffic disruptions are indicated on the SONET test set. If disruptions occur, do not
d.
proceed. Add the protection group and begin troubleshooting procedures to find out the cause of the
disruption.
Note
Step 7 Physically remove one of the protect fibers running between the middle and end nodes. In the
Figure 5-38
corresponding end-node trunk card will display an LOS alarm.

Figure 5-38 Converting a linear ADM to a BLSR

Slot 5
(West)
Step 8 Physically reroute the other protect fiber so it connects the two end nodes. In the
the fiber between Node 1/Slot 5 and Node 2/Slot 5 is rerouted to connect Node 1/Slot 5 to Node
3/Slot/ 13.
If you are leaving the OC-N cards in place, go to Step 13. If you are removing the cards, complete Steps
9 – 12. (In this example, cards in Node 2/Slots 5 and 13 are removed.)
Cisco ONS 15454 Installation and Operations Guide
5-48
Deleting a 1+1 protection group may cause unequipped path (UNEQ-P) alarms to occur.
example, the fiber running from Slot 13/Node 2 to Slot 13/Node 3 is removed. The
ONS 15454
Node 1
Slot 6 to Slot 6
Slot 5 to Slot 5
ONS 15454
Node 1
Slot 6 Slot 6
(East) (West)
Linear
ONS 15454
Node 2
Slot 12 to Slot 12
Slot 13 to Slot 13
BLSR
ONS 15454
Node 2
Slot 12 Slot 12
(East) (West)
Chapter 5 SONET Topologies
ONS 15454
Node 3
ONS 15454
Node 3
Slot 13
(East)
Figure 5-38 example,
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