SONET/SDH network configurations

The Optical Transport Manager supports connections over any combination of the following configurations in SONET/SDH networks:

• Singleton device where a subnetwork connection is cross-connected from one port of a network element to another port on the same network element

• Linear chain, including 1+1 protection

• For SONET: Ring, including 2F-BLSR, 4F-BLSR, UPSR

• For SDH: Ring, including 2F-MS-SPRing, 4F-MS-SPRing, SNCP

• Mesh, where subnetwork connections can be rerouted when failures occur

  These configurations are described in more detail in “Classes and Relationships for SONET/SDH” on page 27 and “Protection Schemes” on page 95.