37
View
Interface view
Predefined user roles
network-admin
Parameters
ip-address
: Specifies a multicast IP address. The default is 224.0.1.1. A multicast server and client
must be configured with the same multicast IP address.
authentication-keyid keyid
: Specifies the key ID to be used for sending multicast messages to
multicast clients, where
keyid
is in the range of 1 to 4294967295. If this option is not specified, the
local device cannot synchronize multicast clients enabled with NTP authentication.
ttl ttl-number
: Specifies the TTL of NTP multicast messages, where
ttl-number
is in the range of 1 to
255. The default value is 16.
version number
: Specifies the NTP version. The value range for the
number
argument is 1 to 4, and
the default is 4.
Usage guidelines
After you configure the command, the device periodically sends NTP messages to the specified
multicast address.
If you have configured the device to operate in multicast server mode on an interface with the
command, do not add the interface to any aggregate group. To add the interface to an aggregate
group, remove the configuration of the command.
Examples
# Configure the device to operate in 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 4.
<Sysname> system-view
[Sysname] interface vlan-interface 1
[Sysname-Vlan-interface1] ntp-service multicast-server 224.0.1.1 version 4
authentication-keyid 4
Related commands
ntp-service multicast-client
ntp-service refclock-master
Use
ntp-service refclock-master
to configure the local clock as a reference source for other
devices.
Use
undo ntp-service refclock-master
to remove the configuration.
Syntax
ntp-service refclock-master
[
ip-address
] [
stratum
]
undo ntp-service refclock-master
[
ip-address
]
Default
The device does not use its local clock as a reference clock.
Views
System view