Руководство По Устранению Ошибки для Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP)
ONS 15454 Timing Issues
Document ID: 15234
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Timing Concepts
Mixed Mode Timing
Synchronization Modes
Use the BITS Backplane Pins for External Timing
References
References
Understand the Timing Alarms
Best Practice Timing Topology Lab Setup
Externally Timing the First Node
Alarms for Externally Timing the First Node
Line Timing the Second Node
Alarms for Line Timing the Second Node
Line Timing the Third Node
Alarms for Line Timing the Third Node
Line Timing and Providing a BITS OUT Timing
Reference on the Fourth Node
Alarms for Line Timing and Providing a BITS OUT
Timing Reference On the Fourth Node
Timing Topology Changes when the Ring Is Broken
Use the Alarm Screens to Explain Timing Topology Changes
Timing Topology Changes for the First Node
Timing Topology Changes for the Second Node
Timing Topology Changes for the Third Node
Timing Topology Changes for the Fourth Node
Timing Topology Recovery (Reversion)
Timing Alarms/Conditions and Troubleshooting Timing (software level dependent)
FRNGSYNC
FSTSYNC
HLDOVERSYNC
LOF (TCC+)
STU
SWTOPRI
SWTOSEC
SWTOTHIRD
SYNCPRI
SYNCSEC
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Cisco - ONS 15454 Timing Issues
12/29/2004
http://www.cisco.com/warp/customer/127/Timing/15454_timingissues.html