Cisco ONS 15454 SDH Specifications Page 240

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Cisco ONS 15454 SDH Installation and Operations Guide, R3.3
May 2002
Chapter 5 SDH Topologies
Subtending Rings
Procedure: Subtend an MS-SPRing from an SNCP Ring
Step 1 In the node that will subtend the MS-SPRing (Node 3 in the Figure 5-36 on page 5-48 example), install
the STM-N cards that will serve as the MS-SPRing trunk cards (in Figure 5-36, Node 3, Slots 6 and 13).
Step 2 Attach fibers from these cards to the MS-SPRing trunk cards on the MS-SPRing nodes. In Figure 5-36,
Node 3/Slot 6 connects to Node 5/Slot 13, and Slot 13 connects to Node 6/Slot 6.
Step 3 From the node view, click the Provisioning > SDH DCC tabs.
Step 4 Click Create.
Step 5 In the Create SDCC Terminations dialog box, click the slot and port that will carry the MS-SPRing.
Step 6 Set the ports in service by making sure the Set Port In Service checkbox is checked.
Step 7 Click OK.
Step 8 The selected slots/ports are displayed under SDCC Terminations.
Step 9 Configure the MS-SPRing. See the Provision the MS-SPRing procedure on page 5-29.
Step 10 Follow Steps 1 9 for the other nodes that will be in the MS-SPRing.
Step 11 Display the network view to see the subtending ring.
Purpose Use this procedure to subtend an MS-SPRing from an SNCP ring. A
subtended ring reduces the number of nodes and cards required and
reduces external shelf-to-shelf cabling.
Prerequisite Procedures This procedure requires an established SNCP ring and one node with
STM-N cards and fibers to connect to the MS-SPRing. The procedure also
assumes you can set up an MS-SPRing. (For MS-SPRing setup procedures,
see the Setting Up MS-SPRings section on page 5-25.)
Onsite/Remote Onsite
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