The association identifier of the peer. Every peer
with which an NTP server is associated with is
identified by an association identifier.
NTPLeapIndicator
enumeration
This is a two-bit code warning of an impending leap
second to be inserted in the NTP timescale. The bits
are set before 23:59 on the day of insertion and reset
after 00:00 on the following day. This causes the
number of seconds (rollover interval) in the day of
insertion to be increased or decreased by one. The two
bits are coded as below,
00, no warning
01, last minute has 61 seconds
10, last minute has 59 seconds
11, alarm condition (clock not synchronized)
NTPPollInterval
int32
The minimum interval between transmitted NTP
messages, in seconds as a power of two. For
instance, a value of six indicates a minimum
interval of 64 seconds.
NTPRefId
binary
The reference clock identifier. In the case of
stratum 0 (unspecified) or stratum 1 (primary
reference source), this is a four-octet,
left-justified, zero-padded ASCII string as defined
in RFC-1305. In the case of stratum 2 and greater
(secondary reference) this is the four-octet Internet
address of the peer selected for synchronization.
Some examples of stratum 0 identifiers are,
DCN, DCN routing protocol
NIST, NIST public modem
TSP, TSP time protocol
DTS, Digital Time Service
Some examples of stratum 1 identifiers are,
ATOM, Atomic clock (calibrated)
VLF, VLF radio (OMEGA,, etc.)
LORC, LORAN-C radionavigation
GOES, GOES UHF environment satellite
GPS, GPS UHF satellite positioning
NTPSignedTimeValue
binary
The time in seconds that could represent signed
quantities like time delay with respect to some
source. This textual-convention is specific to Cisco
implementation of NTP where 32-bit integers are used
for such quantities. The signed integer part is in
the first 16 bits and the fraction part is in the
last 16 bits.
NTPStratum
int32
Indicates the stratum of the clock. The stratum
defines the accuracy of a time server. Higher the
stratum, lower the accuracy.
0, unspecified
1, primary reference (e.g., calibrated atomic clock,
radio clock)
2-255, secondary reference (via NTP)
NTPTimeStamp
binary
NTP timestamps are represented as a 64-bit
unsigned fixed-point number, in seconds relative to
00:00 on 1 January 1900. The integer part is in the
first 32 bits and the fraction part is in the last
32 bits.
NTPUnsignedTimeValue
binary
The time in seconds that could represent unsigned
quantities like maximum error of the local clock
with respect to some source. This textual-convention
is specific to Cisco implementation of NTP where
32-bit integers are used for such quantities. The
unsigned integer part is in the first 16 bits and the
fraction part is in the last 16 bits.