Table of Contents
Advertisement
Chapter 64 NTP Function Configuration
64.1 Introduction to NTP Function
The NTP (Network Time P rotocol) synchronizes timekeeping spans WAN and LAN among distributed time
servers and clients, it can get millisecond precision. The introduction of event, state, transmit function and
action are defined in RFC-1305.
The purpose of using NTP is to keep consistent timekeeping among all clock-dependent devices within the
network so that the devices can provide diverse applications based on the consistent time.
For a local system running NTP, its time can be synchronized by other reference sources and can be used as
a reference source to synchronize other clocks, also can synchronize each other by transmit NTP packets.
64.2 NTP Function Configuration Task List
1.
To enable NTP function
2.
To configure NTP server function
3.
To configure the max number of broadcast or multicast servers supported by the NTP client
4.
To configure time zone
5.
To configure NTP access control list
6.
To configure NTP authentication
7.
To specified some interface as NTP broadcast/multicast client interface
8.
To configure some interface can't receive NTP packets
9.
Display information
10. Debug
1. To enable NTP function
Global Mode
ntp enable
ntp di sable
2. To configure NTP server function
Global Mode
ntp server {<ip-address> |
<ipv6-address>} [version <version_no> ]
[key <key-id>]
no ntp server {<ip-address> |
<ipv6-address>}
Command
Command
Explication
To enable or disable NTP function.
Explication
To enable the specified time server of time
source.
64-1
Advertisement
Table of Contents
Troubleshooting
