- Nortel Network Multiservice Platform User's Guide

Operation, administration, and maintenance (OAM) features 2-29

Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004

Figure 2-14

STS paths and squelch map for a four-node 2-Fiber BLSR ring

F2247

BLSR configurations

The configuration of the BLSR ring is recorded in a BLSR configuration,

which is created on the NPx and then propagated to all the SPx circuit packs

in the BLSR ring.

BLSR configuration attributes

A BLSR configuration contains the following information:

• Ring name

• Optical interfaces involved in the ring (for each node in the ring)

• The associated automatic protection switching (APS) IDs of the involved

optical interfaces (for each node in the ring)

• The adjacent nodes’ APS IDs and TIDs (for each node in the ring)

Note 1: The allowable string characters are "0-9", "A-Z", and "-".

Note 2: The allowable range for an APS ID is between 0 and 15.

Node D

Node A

Node C

Node B

(path a)

Line

STS #3

(path b)

(path c)

(path d)

(path b)

(path a)

(path d)

STS #2

STS #3

STS #2

STS #1

STS #2STS #1

Line