H3C S5500-EI Series Command Manual page 3

Command Manual – NTP
H3C S5500-EI Series Ethernet Switches
Table 1-1 Description on the fields of the display ntp-service sessions command
Field
source
reference
stra
reach
poll
now
offset
delay
disper
[12345]
Total
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
Reachability count of the clock source. 0 indicates that the clock
source in unreachable
Poll interval, namely the maximum interval between successive
NTP messages.
The length of time in minutes 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 of ≤ 15
2: Stratum level of this system source is ≤ 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
1-2
Chapter 1 NTP Configuration Commands
Description