Specifications

5-4
Cisco ONS 15454 and Cisco ONS 15327 TL1 Command Guide, R3.3
May 2002
Chapter 5 Ring Provisioning
Ring-to-Ring Interconnection
Figure 5-4 Selector between 5/1/1 and 6/1/1
The command also creates a selector between 12/3/2 and 13/3/2 to a bridge to Ring 1 (5/1/1 and 6/1/1),
as shown in Figure 5-5.
Figure 5-5 Selector between 12/3/2 and 13/3/2
5.3.2 Sample UPSR to Two-Fiber BLSR Connection
Ring 1 = UPSR
Ring 2 = Two-fiber BLSR
This example, illustrated in Figure 5-6, uses a UPSR end-point with a drop on a two-fiber BLSR and the
west span of the two-fiber BLSR (Ring 2) for the active path of the circuit. The example also uses
multiport addressing for Ring 2 even though a two-fiber BLSR cannot traverse OC-3 and OC-3 is the
only multiport card for this release. This example is based on the future release of a multiport OC-12
that will support two-fiber BLSR. Therefore, assume a 4-port OC-12 card (this is only important for
computing the STS AID for multiport cards) where 13/3/2 = STS-13-26 and where
26 = (((3-1)*12) +2).
Figure 5-6 UPSR to two-fiber BLSR
Use the ENT-CRS-STS1:CISCO:STS-5-1&STS-6-1,STS12-26:CTAG2::2WAY; input format.
This command creates a selector between 5/1/1 and 6/1/1 which connects to 12/3/2 on Ring 2, as shown
in Figure 5-7.
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5/1/1
Rx
6/1/1
Rx
Selector
Bridge
12/3/2
Tx
13/3/2
Tx
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5/1/1
Tx
6/1/1
Tx
Selector
Bridge
12/3/2
Rx
13/3/2
Rx
Node Cisco
UPSR RING 1
2F BLSR RING 2
West5/1/1 East 6/1/1
West12/3/2 East 13/3/2
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