Specifications

5-5

Cisco ONS 15454 and Cisco ONS 15327 TL1 Command Guide, R3.3

May 2002

Chapter 5 Ring Provisioning

Ring-to-Ring Interconnection

Figure 5-7 Selector between 5/1/1 and 6/1/1

The command also creates a bridge from 12/3/2 to Ring 1 (5/1/1 and 6/1/1), as shown in Figure 5-8.

Figure 5-8 Bridge from 12/3/2 to Ring 1

In this configuration a two-fiber BLSR switch can automatically reconnect the selector output to the

protection path on the east port (12/3/2 assuming OC-12) if necessary.

5.3.3 Sample Two-Fiber BLSR to UPSR Connection

Ring 1 = Two-fiber BLSR

Ring 2 = UPSR

This example, illustrated in Figure 5-9, uses a UPSR end-point with a drop on a two-fiber BLSR and

uses the east span of the two-fiber BLSR (Ring 1) for the active path of the circuit. For STS addressing,

the UPSR is an OC-3 (e.g. STS-13-8).

Figure 5-9 Two-fiber BLSR to UPSR

Use the ENT-CRS-STS1:CISCO:STS-6-1,STS-12-8&STS-13-8:CTAG3::2WAY; input format.

This command creates a bridge from 6/1/1 to Ring 2 (12/3/2 and 13/3/2), as shown in Figure 5-10.

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5/1/1

6/1/1

Selector

12/3/2

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5/1/1

6/1/1

12/3/2

Bridge

Node Cisco

2F BLSR RING 1

UPSR RING 2

West5/1/1 East 6/1/1

West12/3/2 East 13/3/2

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