HP E4510-48G Command Reference Manual page 1251

Table 19-1 display ntp-service sessions command output description
Field
source
reference
stra
reach
poll
now
offset
delay
disper
[12345]
Total associations
When a device is working in the NTP broadcast/multicast server mode, the display ntp-service
sessions command executed on the device will not display the NTP session information
corresponding to the broadcast/multicast server, but the sessions will be counted in the total number of
associations.
IP address of the clock source
Reference clock ID of the clock source
1) If the reference clock is the local clock, the value of this field is related
to the value of the stra field:
When the value of the stra field is 0 or 1, this field will be "LOCL";
When the stra field has another value, this filed will be the IP address of
the local clock.
2) If the reference clock is the clock of another device on the network, the
value of this field will be the IP address of that device.
Stratum level of the clock source, which determines the clock precision.
The value range is 1 to 16. The clock precision decreases from stratum 1 to
stratum 16. A stratum 1 clock has the highest precision, and a stratum 16
clock is not synchronized and cannot be used as a reference clock.
Reachability count of the clock source. 0 indicates that the clock source in
unreachable.
Poll interval in seconds, namely, the maximum interval between successive
NTP messages.
The length of time from when the last NTP message was received or when
the local clock was last updated to the current time
The time is in second by default. If the time length is greater than 2048
seconds, it is displayed in minute; if greater than 300 minutes, in hour; if
greater than 96 hours, in day.
The offset of the system clock relative to the reference clock, in
milliseconds
the roundtrip delay from the local device to the clock source, in
milliseconds
The maximum error of the system clock relative to the reference source.
1: Clock source selected by the system, namely, the current reference
source, with a system clock stratum level less than or equal to 15
2: Stratum level of the clock source is less than or equal to 15.
3: This clock source has passed the clock selection process.
4: This clock source is a candidate clock source.
5: This clock source was created by a configuration command.
Total number of associations
19-2
Description