Configuring The Local Clock As A Reference Source; Displaying And Maintaining Ntp; Ntp Client/Server Mode Configuration Example - HP 5920 Configuration Manual

Step
2. Set a DSCP value for 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
1. Enter system view.
2. Configure the local clock as a
reference source.

Displaying and maintaining NTP

Execute display commands in any view.
Task
Display information about IPv6 NTP associations.
Display information about IPv4 NTP associations.
Display information about NTP service status.
Display brief information about the NTP servers from
the local device back to the primary reference source.

NTP client/server mode configuration example

Network requirements
As shown in
2. Device B operates in client mode and Device A is to be used as the NTP server for Device B.
Figure 9, the local clock of Device A is to be used as a reference source, with the stratum level
Command
•
IPv4 packets:
ntp-service dscp dscp-value
•
IPv6 packets:
ntp-service ipv6 dscp
dscp-value
Command
system-view
ntp-service refclock-master
[ ip-address ] [ stratum ]
Command
display ntp-service ipv6 sessions [ verbose ]
display ntp-service sessions [ verbose ]
display ntp-service status
display ntp-service trace
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Remarks
The defaults for a DSCP value:
•
48 for IPv4 NTP packets.
•
56 for IPv6 NTP packets.
Remarks
N/A
By default, the device does not use
the local clock as a reference
source.