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11-1
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
11
Network Synchronization Support
Most of the services that are provided over networks must be fully synchronized with one another in
order to operate efficiently. If the network devices that constitute a network do not operate at the same
clock rates, there is an overall decrease in the performance of the network and a consequent degradation
in the quality of the services offered by the network. This document explains how to configure network
synchronization on the Cisco ASR 1000 Series Aggregation Services Routers.
Finding Feature Information
Your software release might not support all the features documented in this module. For the latest feature
information and caveats, see the release notes for your platform and software release. To find information
about the features documented in this module, and to see a list of the releases in which each feature is
supported, see the “Feature Information for Network Synchronization Support” section on page 11-24.
Use Cisco Feature Navigator to find information about platform support and Cisco software image
support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on
Cisco.com is not required.
Contents
This guide covers the following topics:
• Prerequisites for Network Synchronization Support, page 11-2
• Network Synchronization Overview, page 11-2
• Synchronization Status Message and Ethernet Synchronization Messaging Channel, page 11-6
• Restrictions for Network Synchronization, page 11-7
• Configuring Network Synchronization, page 11-8