Symmetricom Time Server, Руководство пользователя

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6000-100AppD.fm Rev. D TimeVault™ User’s Manual
D-115
Symmetricom SNMP Enterprise MIB Appendix D: SNMP – Simple Network Management Protocol
ntpDesiredAcc OBJECT-TYPE
SYNTAX INTEGER (0..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
“The desired (worst case time) accuracy in microseconds that the
time server will attempt to steer to. This variable is related to
ntpEstError. Should ntpEstError be greater than ntpDesiredAcc, the
NTP alarm condition will be set (ntpSysLeap will be equal to 3).
Note: outgoing NTP packets will have their leap indicator field set to
ntpSysLeap.”
::= { ntp 5 }
ntpEstErr OBJECT-TYPE
SYNTAX INTEGER (0..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
“The current estimated (time) error in microseconds of the time
server. This variable is related to ntpEstError. Usually, this value
is small and constant for a given type of time server. However, when
primary synchronization is lost, this value will slowly increase with
time as the time server’s oscillator flywheels away from true time.
Should ntpEstError be greater than ntpDesiredAcc, the NTP alarm
condition will be set (ntpSysLeap will be equal to 3).
Note: a primary time server’s outgoing NTP packets will have its leap
indicator field set to ntpSysLeap.”
::= { ntp 6 }
ntpSysLeap OBJECT-TYPE
SYNTAX INTEGER
{
noLeapWarningAndTimeIsSynchronized
(0),
lastMinuteHas61SecondsAndTimeIsSynchronized (1),
lastMinuteHas59SecondsAndTimeIsSynchronized (2),
alarmConditionAndLossOfTimeSynchronization (3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
“This is a status code indicating normal operation, a leap second to
be inserted in the last minute of the current day, a leap second to be
deleted in the last second of the day or an alarm condition indicating
the loss of timing synchronization. Note: a primary time server’s
outgoing NTP packet will have its leap indicator field set to
ntpSysLeap.”
::= { ntp 7 }