4000 Router Series Network Management and Monitoring Command Reference

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100

Field Descri

tion

Reference

Reference clock ID of the NTP server:

• If the reference clock is the local clock, the value of this field is related to the

value of the Clock stratum field:

{ When the value of the Clock stratum field is 0 or 1, this field displays

Local.

{ When the value of the Clock stratum field is 16, this field displays INIT.

{ When the Clock stratum field has another value, this field displays the

MD5 digest value of the first 32 bits of the IPv6 address. The MD5 digest

value is in dotted decimal format.

• If the reference clock is the clock of another device on the network, this field

displays the MD5 digest value of the first 32 bits of the IPv6 address. The

MD5 digest value is in dotted decimal format.

Clock stratum

Stratum level of the NTP server, which determines the clock accuracy. The

value is in the range of 1 to 16. A lower stratum level represents higher clock

accuracy. A stratum 16 clock is not synchronized and cannot be used as a

reference clock.

Reachabilities

Reachability count of the NTP server. 0 indicates that the NTP server is

unreachable.

Poll interval

Polling interval in seconds. It is the maximum interval between successive NTP

messages.

Last receive time

Length of time from when the last NTP message was received or when the local

clock was last updated to the current time.

Time is in seconds by default. If the time length is greater than 2048 seconds,

it is displayed in minutes; if greater than 300 minutes, in hours; if greater than

96 hours, in days.

Offset Offset of the system clock relative to the reference clock, in milliseconds.

Roundtrip delay Roundtrip delay from the local device to the clock source, in milliseconds.

Dispersion Maximum error of the system clock relative to the reference source.

Total sessions Total number of associations.

# Display detailed information about all IPv6 NTP associations.

<Sysname> display ntp-service ipv6 sessions verbose

Clock source: 1::1

Session ID: 36144

Clock stratum: 16

Clock status: configured, insane, valid, unsynced

Reference clock ID: INIT

VPN instance: Not specified

Local mode: sym_active, local poll interval: 6

Peer mode: unspec, peer poll interval: 10

Offset: 0.0000ms, roundtrip delay: 0.0000ms, dispersion: 15937ms

Root roundtrip delay: 0.0000ms, root dispersion: 0.0000ms

Reachabilities:0, sync distance: 15.938

Precision: 2^10, version: 4, source interface: Not specified

Reftime: 00000000.00000000 Thu, Feb 7 2036 6:28:16.000