13-13
Cisco ONS 15454 Procedure Guide, R5.0
December 2004
Chapter 13 Convert Network Configurations
NTP-A267 Convert a Path Protection to a Two-Fiber BLSR Automatically
NTP-A267 Convert a Path Protection to a Two-Fiber BLSR
Automatically
Note Open-ended path protection and path protection dual-ring interconnect (DRI) configurations do not
support in-service topology upgrades.
Note Before beginning this procedure, you should have a unique ring name to identify the new BLSR and a
unique node ID number for each node on the ring.
Note Before beginning this procedure, optical transmit and receive levels should be in their acceptable range
as shown in Table 2-3 on page 2-15.
Note If overhead circuits exist on the network, this procedure is service affecting. The overhead circuits will
drop traffic and have a status of PARTIAL after the upgrade is complete.
Step 1 Complete the “DLP-A60 Log into CTC” task on page 17-66 at a node on the path protection. If you are
already logged in, continue with Step 2.
Step 2 Complete the “DLP-A298 Check the Network for Alarms and Conditions” task on page 19-63.
Step 3 In the UPSR to BLSR Topology Conversion dialog box, set the BLSR properties:
• Ring Type—(Display only.) The default is two-fiber.
• Speed—Choose the BLSR ring speed: OC-12, OC-48, or OC-192. The speed must match the OC-N
speed of the BLSR trunk (span) cards.
Note If you are creating an OC-12 BLSR and will eventually upgrade it to OC-48 or OC-192, use
the single-port OC-12 cards (OC12 IR/STM4 SH 1310, OC12 LR/STM4 SH 1310, or
OC12 LR/STM4 LH 1550).
• Ring Name—Assign a ring name. The name can be from 1 to 6 characters in length. Any
alphanumeric string is permissible, and upper and lower case letters can be combined. Do not use
the character string “All” in either upper or lower case letters. This is a TL1 keyword and will be
rejected. Do not choose a name that is already assigned to another BLSR.
Purpose This procedure converts a path protection to a two-fiber BLSR without
disrupting traffic.
Tools/Equipment None
Prerequisite Procedures NTP-A44 Provision Path Protection Nodes, page 5-20
Required/As Needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher
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