3com S7906E Guide De Référence
1-11
Use the undo ntp-service multicast-server command to remove the configuration.
Examples
# Configure the device to work in the multicast server mode and send NTP multicast messages on
VLAN-interface 1 to the multicast address 224.0.1.1, using key 4 for encryption, and set the NTP
version to 3.
<Sysname> system-view
[Sysname] interface vlan-interface 1
[Sysname-Vlan-interface1] ntp-service multicast-server 224.0.1.1 version 3
authentication-keyid 4
ntp-service refclock-master
Syntax
ntp-service refclock-master [ ip-address ] [ stratum ]
undo ntp-service refclock-master [ ip-address ]
View
System view
Default Level
2: System level
Parameters
ip-address: IP address of the local clock, which is 127.127.1.u, where u is the NTP process ID, in the
range of 0 to 3. If you do not specify ip-address, it defaults to 127.127.1.0.
stratum: Stratum level of the local clock, in the range of 1 to 15 and defaulting to 8.
Description
Use the ntp-service refclock-master command to configure the local clock as a reference source for
other devices.
Use the undo ntp-service refclock-master command to remove the configuration.
The stratum level of a clock defines the clock precision. The value range is 1 to 16. The clock precision
decreases from stratum 1 to stratum 16. A stratum 1 clock has the highest precision, and a stratum 16
clock is not synchronized and cannot be used as a reference clock.
Examples
# Specify the local clock as the reference source, with the stratum level of 3.
<Sysname> system-view
[Sysname] ntp-service refclock-master 3