H3C Technologies H3C S3100 Series Switches - Manual (Page 475)

Operation Manual – NTP
H3C S3100-52P Ethernet Switch Chapter 1 NTP Configuration
1-13
Operation Command Description
Disable an interface
from receiving NTP
packets
ntp-service in-interface
disable
Optional
By default, a VLAN interface
receives NTP packets.
Caution:
z
If a sending interface is specified in the ntp-service unicast-server command or
the ntp-service unicast-peer command, the source IP address of an NTP packet is
the address of this interface.
z
Dynamic connections can be established when a switch operates in passive peer
mode, NTP broadcast client mode, or NTP multicast client mode. In other modes,
the connections established are static.
1.6 Displaying and Debugging NTP
After the above configurations, you can execute display commands in any view to
display the running status of switch, and verify the effect of the configurations.
Table 1-7
Display and debug NTP
Operation Command Description
Display the status of NTP services
display ntp-service status
Display the information about the
sessions maintained by NTP
display ntp-service
sessions
[ verbose ]
Display the brief information about
NTP servers along the path from
the local device to the reference
clock source
display ntp-service trace
The display
commands
can be
executed in
any view
1.7 Configuration Example
1.7.1 Configuring NTP Server Mode
I. Network requirements
The local clock of H3C1 is set to the NTP master clock, with a stratum level of 2.