Table of Contents
About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Supported Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Using the Examples in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Merging a Full Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Merging a Snippet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Part 1
Overview
Chapter 1
Time Management Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
NTP Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Understanding NTP Time Servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Part 2
Configuration
Chapter 2
Configuring Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setting the Date and Time Locally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Configuring NTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Modifying the Default Time Zone for a Router or Switch Running Junos OS . . . . . 12
Synchronizing and Coordinating Time Distribution Using NTP . . . . . . . . . . . . . . . . 13
Configuring NTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Configuring the NTP Boot Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Specifying a Source Address for an NTP Server . . . . . . . . . . . . . . . . . . . . . . . . 13
Configuring the NTP Time Server and Time Services . . . . . . . . . . . . . . . . . . . . . . . 14
Configuring the Router or Switch to Operate in Client Mode . . . . . . . . . . . . . . 15
Configuring the Router or Switch to Operate in Symmetric Active Mode . . . . 15
Configuring the Router or Switch to Operate in Broadcast Mode . . . . . . . . . . 16
Configuring the Router or Switch to Operate in Server Mode . . . . . . . . . . . . . 16
Example: Configuring NTP as a Single Time Source for Router and Switch Clock
Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Configuring NTP Authentication Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Configuring the Router or Switch to Listen for Broadcast Messages Using
NTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Configuring the Router or Switch to Listen for Multicast Messages Using NTP . . . 19
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Copyright © 2014, Juniper Networks, Inc.
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Страница 57: ...CHAPTER 4 Operational Commands set date 45 Copyright 2014 Juniper Networks Inc...
Страница 59: ...CHAPTER 5 Monitoring Commands show ntp associations show ntp status 47 Copyright 2014 Juniper Networks Inc...
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Страница 65: ...PART 4 Index Index on page 55 53 Copyright 2014 Juniper Networks Inc...
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