Configuring The Ntp Primary Clock - Huawei Quidway S5700 Series Configuration Manual - Network Management

Quidway S5700 Series Ethernet Switches
Configuration Guide - Network Management
l
l
l
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:
l
l
Data Preparation
To configure basic functions of NTP, you need the following data.
No.
1
2
3
4
5

4.3.2 Configuring the NTP Primary Clock

The stratum configured for the master clock on the server must be lower than the stratum
configured for the clock on the client. Otherwise, the clock on the client cannot synchronize with
the master clock on the server.
Issue 01 (2011-10-26)
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
Data
Primary NTP clock and its stratum
Interfaces to send and receive NTP packets
NTP version
Preparing the data according to the operation mode
l Server/client mode: IP address of the server and the VPN instance that the server
belongs to
l Peer mode: IP address of the symmetric passive end and the VPN instance that it
belongs to
l Broadcast mode: interfaces to send and receive broadcast NTP packets and the
maximum sessions set up dynamically on the client
l Multicast mode: IP address of the multicast group, the TTL value of the multicast
packets, the interfaces to send and receive the multicast packets, and the maximum
number of the session dynamically set up on the client
Interface disabled from receiving NTP packets
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4 NTP Configuration
214