11
display ntp-service trace
Use
display ntp-service trace
to display brief information about each NTP server from the
local device back to the primary NTP server.
Syntax
display ntp-service trace
[
source
interface-type interface-number
]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
source interface-type interface-number
: Specifies the source interface for sending
NTP packets to trace each NTP server from the local device back to the primary NTP server. The
source IP address of the NTP packets is the IPv4 address/IPv6 address of the specified source
interface. If the IP address of an NTP server is a link-local address, the link-local address of the
outgoing interface of NTP packets is used as the source IP address of the NTP packets. If you do not
specify this option, the interface that sends the tracing NTP packets acts as the source interface.
Usage guidelines
To trace back to the primary NTP server from the source interface, make sure the source interface
and the NTP servers from the local device to the primary NTP server are reachable to each other.
Examples
# Display brief information about each NTP server from the local device back to the primary NTP
server.
<Sysname> display ntp-service trace
Server 127.0.0.1
Stratum 3, jitter 0.000, synch distance 0.0000.
Server 3000::32
Stratum 2 , jitter 790.00, synch distance 0.0000.
RefID 127.127.1.0
The output shows that server 127.0.0.1 is synchronized to server 3000::32, and server 3000::32 is
synchronized to the local clock.
Table 6 Command output
Field
Description
Server
IP address of the NTP server.
Stratum
Stratum level of the NTP server.
jitter
Root mean square (RMS) value of the clock offset relative to the upper-level
clock, in seconds.
synch distance
Synchronization distance relative to the upper-level NTP server, in seconds,
calculated from dispersion and roundtrip delay values.
RefID
Identifier of the primary NTP server. When the stratum level of the primary
reference clock is 0, it is displayed as
LOCL
. Otherwise, it is displayed as the IP
address of the primary reference clock.
Содержание SOHO IE4300
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