9-4
Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
78-19417-01
Chapter 9 SDH Topologies and Upgrades
Interoperability
Figure 9-3 ONS 15310-MA SDH Linear ADM Configuration
9.3 Interoperability
The ONS 15310-MA SDH supports up to four SDH SDCCs and two Subnetwork Connection Protection
configurations per node. You can install ONS 15310-MA SDH nodes into a network comprised entirely
of ONS 15310-MA nodes or into a network that has a mix of ONS 15310-MA SDH, and ONS 15454
nodes. The ONS 15310-MA SDH nodes interoperate with the ONS 15454 nodes in linear or Subnetwork
Connection Protection configurations. Because connection procedures for these types of nodes are the
same (for example, adding or dropping nodes from a Subnetwork Connection Protection or linear
configuration, or creating DCCs), follow the instructions in the “Add and Remove Nodes” chapter of the
Cisco ONS 15310-MA SDH Procedure Guide whenever you make connections between ONS 15310-MA
SDH, and ONS 15454 nodes.
9.3.1 Subtending Rings
Subtending rings reduce the number of nodes and cards required and reduce external shelf-to-shelf
cabling. Figure 9-4 shows an ONS 15454 SDH with two subtending rings using ONS 15310-MA SDH
nodes.
Figure 9-4 ONS 15454 SDH with Two ONS 15310-MA SDH Nodes Subtending Linear Multiplex
Section Protection Configurations
Figure 9-5 shows an ONS 15310-MA SDH with two subtending rings Linear Multiplex Section
Protection configurations.
Node 1
Node 3
Node 2
Slot 3 Port 2-1 to
Slot 4 Port 2-1
Working Path
Protect Path
271784
Slot 3 Port 2-1 to
Slot 4 Port 2-1
ONS 15310-MA SDH
ONS 15310-MA SDH
ONS 15310-MA SDH
Slot 3 Port 2-2 to
Slot 4 Port 2-2
Slot 3 Port 2-2 to
Slot 4 Port 2-2
271814
ONS 15454
ONS 15310-MA
SDH
ONS 15310-MA
SDH
