Specifications

5-3

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

May 2002

Chapter 5 Ring Provisioning

Ring-to-Ring Interconnection

Figure 5-2 Network map with Cisco node showing ring-to-ring interconnection

5.3.1 Sample UPSR to UPSR Connection

Ring 1 = UPSR

Ring 2 = UPSR

This example, illustrated in Figure 5-3, uses a 4-port OC-3 to feed Ring 2. Ring 1 can have any OC-N

trunk card, but the trunk card is most likely a single-port OC-48 or OC-12.

Note STS 12/3/2 maps to STS-12-8 (((3-1)*3) +2).

The STS calculation formula is: (((Port # -1)*Number of STS per port)+STS#).

Figure 5-3 UPSR to UPSR connection specifications through the Cisco node

Use the ENT-CRS-STS1:CISCO:STS-5-1&STS-6-1,STS-12-8&STS-13-8:CTAG1::2WAY; input

format.

This command creates a selector between 5/1/1 and 6/1/1 which is bridged to Ring 2 (12/3/2 and 13/3/2),

as shown in Figure 5-4.

Node F

Node

Cisco

Node E

Node D

UPSR

2F BLSR

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Node A

Node C

Node B

UPSR

2F BLSR

Node Cisco

UPSR RING 1

UPSR RING 2

West5/1/1 East 6/1/1

West12/3/2 East 13/3/2

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