
4.2.2 Network Architecture................................................................................................................................................60
4.2.3 Operating Mode.........................................................................................................................................................61
4.2.4 NTP Access Control..................................................................................................................................................66
4.3 Application...................................................................................................................................................................67
4.4 Default Configuration...................................................................................................................................................69
4.5 Configuring the NTP....................................................................................................................................................69
4.5.1 Configuring Basic NTP Functions............................................................................................................................69
4.5.1.1 Configuring an NTP primary clock........................................................................................................................70
4.5.1.2 Configuring NTP Operating Modes.......................................................................................................................71
4.5.1.3 Checking the Configuration....................................................................................................................................76
4.5.2 Configuring the Local Source Interface for Sending and Receiving NTP Packets...................................................77
4.5.3 Limit on the Number of Local Dynamic Sessions....................................................................................................77
4.5.4 Configuring NTP Access Control..............................................................................................................................78
4.5.4.1 Disabling a Specified Interface from Receiving NTP Packets...............................................................................78
4.5.4.2 Disabling the NTP Service Function......................................................................................................................79
4.5.4.3 Configuring NTP Access Control Authority..........................................................................................................80
4.5.4.4 Configuring KOD...................................................................................................................................................82
4.5.4.5 Configuring NTP Authentication...........................................................................................................................83
4.5.4.6 Checking the Configuration....................................................................................................................................84
4.6 Maintaining NTP..........................................................................................................................................................84
4.6.1 Monitoring the Running Status of NTP.....................................................................................................................84
4.7 Configuration Examples...............................................................................................................................................85
4.7.1 Example for Configuring Authenticated NTP Unicast Server/Client Mode.............................................................85
4.7.2 Example for Configuring NTP Symmetric Peer Mode.............................................................................................89
4.7.3 Example for Configuring Authenticated NTP Broadcast Mode................................................................................92
4.7.4 Example for Configuring NTP Multicast Mode........................................................................................................95
4.8 Reference......................................................................................................................................................................98
5 Fault Management Configuration............................................................................................99
5.1 Introduction to Fault Management.............................................................................................................................100
5.2 Principles....................................................................................................................................................................100
5.2.1 Concepts..................................................................................................................................................................100
5.2.2 Principles.................................................................................................................................................................101
5.2.3 Alarm Severity.........................................................................................................................................................101
5.2.4 Alarm Correlation....................................................................................................................................................102
5.3 Default Configuration.................................................................................................................................................103
5.4 Configuring Fault Management..................................................................................................................................103
5.4.1 Configuring Alarm Management.............................................................................................................................103
5.4.1.1 Setting the Alarm Severity...................................................................................................................................104
5.4.1.2 Configuring the Alarm Reporting Delay Function...............................................................................................105
5.4.1.3 Checking the Configuration..................................................................................................................................106
5.4.2 Configuring the Event Reporting Delay Function...................................................................................................106
Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Device Management Contents
Issue 01 (2014-11-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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