Cisco Cisco ONS 15216 (EDFA3) Metropolitan Regional DWDM System Troubleshooting Guide
How To Replace the NCB Module on the ONS
15252
15252
Document ID: 9331
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Replacement Procedure
Determine the Original NCB Software and Hardware Version
Back Up All The NCB files To Your PC
Replace the NCB
Initialize the NCB
Restore the Configuration Files to the New NCB
Related Information
Prerequisites
Requirements
Components Used
Conventions
Replacement Procedure
Determine the Original NCB Software and Hardware Version
Back Up All The NCB files To Your PC
Replace the NCB
Initialize the NCB
Restore the Configuration Files to the New NCB
Related Information
Introduction
The Network Control Board (NCB) resides in the ONS 15252 Multi−Channel Unit (MCU), and hosts the
CPU together with all of its peripherals. The NCB includes permanent Nonvolatile Random Access Memory
(NVRAM), where the system software, snm.out, and the database configuration files reside. If you replace an
NCB module, the replacement NCB has the system software, but has no knowledge of your configuration.
Therefore, you must transfer the configuration files from the original NCB to the replacement NCB.
CPU together with all of its peripherals. The NCB includes permanent Nonvolatile Random Access Memory
(NVRAM), where the system software, snm.out, and the database configuration files reside. If you replace an
NCB module, the replacement NCB has the system software, but has no knowledge of your configuration.
Therefore, you must transfer the configuration files from the original NCB to the replacement NCB.
This document walks you through the steps to replace an NCB module, and describes how to transfer the
configuration files.
configuration files.
Prerequisites
Requirements
Cisco recommends that you have knowledge of these topics:
The IP address of the NCB you want to replaceYou need this information to log in and take a
backup of all the files in the NCB. You can replace the NCB only after you back up all the files in the
original NCB.
backup of all the files in the NCB. You can replace the NCB only after you back up all the files in the
original NCB.
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Flow of traffic though the Client Layer Interface Ports (CLIPs)When the replacement of the NCB is
in progress, traffic continues to flow though the CLIPs. The CLIP modules self−synchronize with
their respective mates, and do not need the assistance of an NCB to carry traffic.
in progress, traffic continues to flow though the CLIPs. The CLIP modules self−synchronize with
their respective mates, and do not need the assistance of an NCB to carry traffic.
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PC configurationEnsure that your PC is properly configured to communicate with the 15200 system.
Contact your system administrator for more information on your network configuration if necessary.
Contact your system administrator for more information on your network configuration if necessary.
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The snm.out and qdbs.cfg filesA new NCB includes at least two files, namely, snm.out and
qdbs.cfg. These two files are specific to each software version. If an NCB has an snm.out file from
version 1.04, the qdbs.cfg file must also be from the same version.
qdbs.cfg. These two files are specific to each software version. If an NCB has an snm.out file from
version 1.04, the qdbs.cfg file must also be from the same version.
Note: This document assumes that the replacement NCB has the same snm.out and qdbs.cfg file
versions as the original NCB.
versions as the original NCB.
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