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Cisco ONS 15454 SDH Product Overview

Network Configuration

Cisco ONS 15454 SDH Product Overview, R3.4

September 2002

• Nodal Diversity Required—Ensures that the primary and alternate paths of

each extended SNCP domain use diverse nodes.

• Nodal Diversity Desired—CTC looks for a node diverse path; if a node

diverse path is not available, CTC finds a link diverse path for each extended

SNCP domain.

• Link Diversity Only—Creates a link diverse path for each extended SNCP

domain.

Figure 23 shows a sample extended SNCP. In the example, Node 3 is the source

and Node 9 is the destination. CTC automatically determines that the shortest

route between the two end nodes passes through Node 8 and Node 7, shown by

the dotted line. Cross-connections are automatically created at Nodes 3, 8, 7, and

9 to provide a working-traffic route.

Figure 23 Extended SNCP mesh network

= Primary path

= Secondary path

Working traffic

Protect traffic

Source

Node

Destination

Node

32136

Node 1

Node 11

Node 2

Node 4

Node 5

Node 6

Node 7

Node 8Node 10

Node 9

Node 3

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Cisco ONS 15454 SDH Especificaciones Pagina 44