Cisco ONS 15454 - Two-Fiber BLSR to Two-Fiber BLSR Connection Example; Figure 2-37 Bridge from 6;1;1 to Ring; Figure 2-38 Selector between 12;3;2 and 13;3;2 to Ring; Figure 2-39 Two-Fiber BLSR to Two-Fiber BLSR

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Cisco ONS SONET TL1 Command Guide, R6.0
Chapter 2 Procedures and Provisioning
2.4.7 Two-Fiber BLSR to Two-Fiber BLSR Connection Example
Use the ENT-CRS-STS1:CISCO:STS-6-1,STS-12-8&STS-13-8:CTAG3::2WAY;
to create a bridge from 6/1/1 to Ring 2 (12/3/2 and 13/3/2), as shown in Figure 2-37.
Figure 2-37 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 2-38.
Figure 2-38 Selector Between 12/3/2 and 13/3/2 to Ring 1
2.4.7 Two-Fiber BLSR to Two-Fiber BLSR Connection Example
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 2-way 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 2-39, uses Ring 1 west to Ring 2 east and assumes an OC-12-4 card in Slots 12 and 13 for
subtending to a two-fiber BLSR (Ring 2).
Figure 2-39 Two-Fiber BLSR to Two-Fiber BLSR
51354
6/1/1
Rx
13/3/2
Tx
12/3/2
Tx
Bridge
51355
6/1/1
Tx
Selector
12/3/2
Rx
13/3/2
Rx
Node Cisco
2F BLSR RING 1
2F BLSR RING 2
West5/1/1 East 6/1/1
West12/3/2 East 13/3/2
51356