3com 8807 참조 가이드
938
C
HAPTER
55: NTP C
ONFIGURATION
C
OMMANDS
Parameter
ip-address: Specifies the reference clock IP address as 127.127.u, where u ranges
from 0 to 3.
from 0 to 3.
stratum: Specifies which stratum the local clock is located at and range from 1 to
15.
15.
Description
Use the ntp-service refclock-master command to configure an external
reference clock or the local clock as an NTP master clock.
reference clock or the local clock as an NTP master clock.
Use the undo ntp-service refclock-master command to cancel the NTP master
clock settings.
clock settings.
By default, ip-address is 127.127.1.0 and stratum defaults to 8.
You can use this command to designate an NTP external reference clock or the
local clock as an NTP master clock to provide synchronized time for other
equipment. ip-address specifies the IP address of an external clock as 127.127.u. If
no IP address is specified, the local clock is set as the NTP master clock by default.
You can also specify the stratum of the NTP master clock.
local clock as an NTP master clock to provide synchronized time for other
equipment. ip-address specifies the IP address of an external clock as 127.127.u. If
no IP address is specified, the local clock is set as the NTP master clock by default.
You can also specify the stratum of the NTP master clock.
Example
# Set the local clock as the NTP master clock to provide synchronized time for its
peers and locate it at stratum 3.
peers and locate it at stratum 3.
<SW8800> system-view
System View: return to User View with Ctrl+Z.
[SW8800] ntp-service refclock-master 3
ntp-service reliable
authentication-keyid
Syntax
ntp-service reliable authentication-keyid number
undo ntp-service reliable authentication-keyid number
View
System view
Parameter
number: Key number, ranging from 1 to 4294967295.
Description
Use the ntp-service reliable authentication-keyid command to configure the
key as reliable.
key as reliable.
Use the undo ntp-service reliable authentication-keyid command to cancel
the current setting.
the current setting.
By default, no key is configured as reliable.
When you enable the authentication, you can use this command to configure one
or more than one keys as reliable. In this case, a Client will only get synchronized
by a server whichever can provide a reliable key.
or more than one keys as reliable. In this case, a Client will only get synchronized
by a server whichever can provide a reliable key.