Path-Protected Mesh Networks
Figure 5-40 A PPMN virtual ring
ONS 15454
Node 5
OC-12
ONS 15454
Node 6
Cisco ONS 15454 Installation and Operations Guide
5-52
ONS 15454
Node 1
OC-48 UPSR
ONS 15454
Node 2
Chapter 5
ONS 15454
ONS 15454
Node 4
Node 8
OC-12
ONS 15454
ONS 15454
Node 3
Node 7
SONET Topologies
78-13453-01
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