Specifications

Cisco ONS 15454 Product Overview, R3.3

May 2002

Cisco ONS 15454 Product Overview

Network Configuration

Subtending Rings

UPSRs and BLSRs can be subtended from one another using one shared node; the

node can terminate and groom any one of the following ring combinations:

• 5 UPSRs, or

• 4 UPSRs and 1 BLSR, or

• 3 UPSRs and 2 BLSRs

Subtending rings from an ONS 15454 reduces the number of nodes and cards

required, and reduces external shelf-to-shelf cabling. Figure 24 shows an ONS

15454 with multiple subtending rings.

Figure 24 An ONS 15454 with multiple subtending rings

Path

Protected

Nodes

BLSR

55302