Establishing The Configuration Task - Huawei Quidway S9300 Configuration Manual - Network Management

3 NTP Configuration
This part describes how to configure the NTP peer mode. In this mode, clocks on the two peers
synchronize with each other. Each side can send the clock synchronization request message to
the peer and reply the clock synchronization request message from the peer.
3.3.5 Configuring the Broadcast Mode
This part describes how to configure the NTP broadcast mode on the LAN to synchronize clocks
on the LAN.
3.3.6 Configuring the Multicast Mode
This part describes how to configure the NTP multicast mode to synchronize clocks in a multicast
domain.
3.3.7 Disabling the Interface From Receiving NTP Packets
To prevent a host on the LAN from synchronizing the clock on the specified server, you can
disable the specified interface on the host from receiving NTP packets.
3.3.8 (Optional) Setting the Maximum Number of Dynamic NTP Sessions
3.3.9 Checking the Configuration
After basic NTP functions are configured, you can view the configuration.

3.3.1 Establishing the Configuration Task

Before configuring basic NTP functions, familiarize yourself with the applicable environment,
complete the pre-configuration tasks, and obtain the required data. This can help you complete
the configuration task quickly and accurately.
Applicable Environment
NTP has the following operation modes:
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In actual applications, a proper operation mode needs to be selected according to the networking
topology to meet various clock synchronization requirements.
For the unicast server/client mode and the peer mode, all the NTP packets sent locally can have
the same interface IP address as the source IP address.
Pre-configuration Tasks
Before configuring basic functions of NTP, you need to complete the following tasks:
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Data Preparation
To configure basic functions of NTP, you need the following data.
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Server/client mode
Peer mode
Broadcast mode
Multicast mode
Configuring the link layer protocol for the interface
Configuring an IP address and a routing protocol for the interface to ensure that NTP packets
can reach destinations
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Copyright © Huawei Technologies Co., Ltd.
Quidway S9300 Terabit Routing Switch
Configuration Guide - Network Management
Issue 03 (2010-09-20)