Specifications

5-6

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

May 2002

Chapter 5 Ring Provisioning

Ring-to-Ring Interconnection

Figure 5-10 Bridge from 6/1/1 to Ring 2

The command also creates a selector between 12/3/2 and 13/3/2 to Ring 1 (6/1/1) as shown in

Figure 5-11.

Figure 5-11 Selector between 12/3/2 and 13/3/2 to Ring 1

5.3.4 Sample Two-Fiber BLSR to Two-Fiber BLSR Connection

Ring 1 = Two-fiber BLSR

Ring 2 = Two-fiber BLSR

All protection for a two-fiber BLSR interconnecting to a two-fiber BLSR is performed at the line level.

You can make the connection with a 2WAY cross-connect from an STS on the working side of the

two-fiber BLSR span of Ring 1 to an STS on the working side of a two-fiber BLSR span on Ring 2. The

connections can be east to east, east to west, west to east, and west to west. This example, illustrated in

Figure 5-12, uses Ring 1 west to Ring 2 east and assumes a 4-port OC-12 in Slots 12 and 13 for

subtending to a two-fiber BLSR (Ring 2).

Figure 5-12 Two-fiber BLSR to two-fiber BLSR

Use the ENT-CRS-STS1:CISCO:STS-5-1,STS-13-26:CTAG4::2WAY; input format.

This command creates a 2WAY connection from 5/1/1 to 13/3/2 as shown in Figure 5-13.

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6/1/1

13/3/2

12/3/2

Bridge

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6/1/1

Selector

12/3/2

13/3/2

Node Cisco

2F BLSR RING 1

2F BLSR RING 2

West5/1/1 East 6/1/1

West12/3/2 East 13/3/2

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