29
Step Command
Remarks
2.
Set a DSCP value for NTP
packets.
•
IPv4 packets:
ntp-service dscp
dscp-value
•
IPv6 packets:
ntp-service ipv6 dscp
dscp-value
The defaults for a DSCP value:
•
48 for IPv4 NTP packets.
•
56 for IPv6 NTP packets.
Configuring the local clock as a reference source
Follow these guidelines when you configure the local clock as a reference source:
•
Make sure the local clock can provide the time accuracy required for the network. After you
configure the local clock as a reference source, the local clock is synchronized, and can operate as
a time server to synchronize other devices in the network. If the local clock is incorrect, timing errors
occur.
•
Before you configure this feature, adjust the local system time to make sure it is accurate.
To configure the local clock as a reference source:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure the local clock as a
reference source.
ntp-service refclock-master
[
ip-address
] [
stratum
]
By default, the device does not use
the local clock as a reference
source.
Displaying and maintaining NTP
Execute
display
commands in any view.
Task Command
Display information about IPv6 NTP associations.
display ntp-service ipv6 sessions
[
verbose
]
Display information about IPv4 NTP associations.
display ntp-service sessions
[
verbose
]
Display information about NTP service status.
display ntp-service status
Display brief information about the NTP servers from
the local device back to the primary reference source.
display ntp-service trace
NTP client/server mode configuration example
Network requirements
As shown in
, the local clock of Device A is to be used as a reference source, with the stratum level
2. Device B operates in client mode and Device A is to be used as the NTP server for Device B.
Summary of Contents for 5920
Page 86: ...76 XGE1 0 2 N A P2P Two 0 ...
