Руководство По Устранению Ошибки для Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP)

Introduction
 Prerequisites
      Requirements
      Components Used
      Conventions
 Background Information

Automatically Provisioned (A to Z) Fully Protected Circuit
      Configure an Automatically Provisioned Fully Protected Circuit
 Remove the Protection Path
      Remove the Protection Path at Node E
      Remove the Protection Group at Node D
 Circuit Creation Failure Due to Lack of Path Protection
 INCOMPLETE Circuits Due to a Fiber Break
      Simulate an INCOMPLETE Circuit
 Revert Circuits to ACTIVE State
 Delete Circuits to Strand Bandwidth
      Delete a Circuit
 Related Information

There are several best practices that Cisco recommends to follow when you configure circuits on the ONS
15454. This document uses a lab setup to demonstrate these best practices.

Note: A circuit that has lost connectivity to the end points is in an INCOMPLETE state. If you try to delete
the circuit, bandwidth can be stranded. The best practice is to back out, and ensure that the Cisco Transport
Controller (CTC) can see the entire network topology in order to learn the end points of the circuit, and
change the circuit back to an ACTIVE state. Delete a circuit only when it is restored to the ACTIVE state. If it
is not possible to get the circuit into an ACTIVE state, ensure that you delete all the incomplete segments of
the circuit, and configure the circuit again.

Note: In the lab setup, a Synchronous Transport Signal−1 (STS−1) circuit is configured from Node A to Node
E. The lab setup demonstrates how:

Changes on the nodes can cause the circuit to change from the ACTIVE to INCOMPLETE state.

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You can recover the circuit back to an ACTIVE state.

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A circuit in an INCOMPLETE state that cannot be recovered needs to have all of its incomplete
segments deleted while in the INCOMPLETE state.

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