Nortel Networks NTRN10AN manual Logical connections in a hubbed-ring configuration, 3500 3500

Operation, administration, and maintenance (OAM) features 2-51

Figure 2-25

Logical connections in a hubbed-ring configuration

EX0813t

Terminal

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OADM

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Meshed-ring configuration

The meshed-ring configuration is optimized for traffic flows that are characteristic of interoffice networks. For an example of a meshed-ring configuration, see Figure 2-26and Figure 2-27.

Individual wavelengths can be added or dropped at different locations. You can also reuse wavelengths.

Band meshing and channel meshing are both supported.

Band meshing allows the system to drop and add all wavelengths of a given band at one node or at multiple nodes in the network. Other bands can be passed through the system.

Channel meshing provides the capability for any channel from one node in the network to be terminated (added or dropped) at any other node in the network and at multiple nodes in the network.

Each OPTera Metro 3500 shelf can support one fully protected optical channel or two unprotected channels. More than one OPTera Metro 3500 shelf can be installed at a terminal or OADM site to provide additional add/drop capacity as required.

Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004