5-41
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 5 Turn Up a Network
NTP- D48 Subtend an MS-SPRing from an MS-SPRing
NTP-D48 Subtend an MS-SPRing from an MS-SPRing
Note This procedure assumes that all nodes are configured for the MS-SPRing. If you need to add a node to
an MS-SPRing, see the “NTP-D353 Add an MS-SPRing Node” procedure on page 14-2.
Step 1 Complete the “DLP-D60 Log into CTC” task on page 17-49 at the node that will subtend the
MS-SPRing. If you are already logged in, continue with Step 2.
Step 2 Install the STM-N cards that will serve as the MS-SPRing trunk (span) cards if they are not already
installed. See the “NTP-D16 Install STM-N Cards and Connectors” procedure on page 2-7 and the
“NTP-D19 Install Fiber-Optic Cables on Optical Cards” procedure on page 2-16.
Figure 5-13 shows two MS-SPRings shared by one ONS 15454 SDH. Ring 1 runs on Nodes 1, 2, 3, and
4. Ring 2 runs on Nodes 4, 5, 6, and 7 and represents the subtending ring added by this procedure. Two
MS-SPRings, Ring 1 and Ring 2, are provisioned on Node 4. Ring 1 uses cards in Slots 5 and 12, and
Ring 2 uses cards in Slots 6 and 13.
Figure 5-13 MS-SPRing Subtended from an MS-SPRing
Purpose This procedure subtends an MS-SPRing from an existing MS-SPRing.
Tools/Equipment One MS-SPRing node must have STM-N cards and fibers needed to carry
the second MS-SPRing.
Prerequisite Procedures NTP-D40 Provision MS-SPRing Nodes, page 5-10
NTP-D41 Create the MS-SPRing, page 5-13
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Provisioning or higher
Node 5
Slot 6
West
East
Slot 13
Node 7
Slot 13
East
Slot 6
West
Slot 6
West
Slot 13
East
Node 6
Node 1
Slot 5
West
Slot 5
West
Slot 12
East
Slot 12
East
Node 3
Slot 12
East
Slot 5
West
Node 2
Slot 5
West
Slot 12
East
Slot 13
East
Slot 6
West
Node 4
MS-SPRing 1 MS-SPRing 2
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