Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) Troubleshooting Guide

Page of 10
Monitor Synchronization Performance and
Troubleshoot Timing Alarms on ONS 15454
Document ID: 65121
Contents
Introduction
 Prerequisites
      Requirements
      Components Used
      Conventions
 Background Information
      Node Timing Architecture
      Stratum Levels
      Jitter, Wander and Slips
 Monitor Pointer Justification Count Performance
 Monitor Synchronization Performance
 Troubleshoot Timing Alarms
      EQPT FAIL Alarm
Holdover (HLDOVRSYNC) Alarm
Internal (Free−Running) Synchronization
Fast−start Sync (FSTSYNC) Alarm
Related Information
Introduction
This document explains how you can monitor synchronization performance, and troubleshoot timing alarms
on Cisco ONS 15454.
Prerequisites
Requirements
Cisco recommends that you have knowledge of these topics:
Cisco ONS 15454
• 
Jitter, Wander and Slips
For more information, see the Jitter, Wander and Slips section.
• 
Components Used
The information in this document is based on these software and hardware versions:
Cisco ONS 15454 NEBS/ANSI (SW 2.X minimal timing advances, 3.X, 4.X  5.X latest timing
advances)
• 
The information in this document was created from the devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If your network is live, make sure