Symmetricom SNMP Enterprise MIB

Appendix D: SNMP – Simple Network Management Protocol

ntpSysRootDelay OBJECT-TYPE SYNTAX Counter MAX-ACCESS read-only STATUS current

DESCRIPTION

“This is a raw 32 bit number representing a signed fixed point 32-bit number indicating the total round-trip delay to the primary synchronization clock source in seconds with the fraction point between bits 15 and 16. Note that this variable can take on both positive and negative values, depending on clock precision and skew. Note: a primary time server’s outgoing NTP packet will have its root delay field set to ntpSysRootDelay.”

::= { ntp 12 }

ntpSysRootDisp OBJECT-TYPE SYNTAX Counter MAX-ACCESS read-only STATUS current

DESCRIPTION

“This is a raw 32 bit number representing a signed 32-bit fixed-point number indicating the maximum error relative to the primary reference source, in seconds with fraction point between bits 15 and 16. Only positive values greater than zero are possible. Note: a primary time server’s outgoing NTP packet will have its root dispersion field set

to ntpSysRootDisp.” ::= { ntp 13 }

ntpSysRefClockIdent OBJECT-TYPE SYNTAX DisplayString (SIZE (0..4)) MAX-ACCESS read-only STATUS current

DESCRIPTION

“This is a four byte ASCII string identifying the particular reference clock. In the case of stratum 0 (unspecified) or stratum 1 (primary reference), this is a four-octet, left-justified, zero-padded ASCII string. While not enumerated as part of the NTP specification, the following are suggested ASCII identifiers:

Stratum

Code

Meaning

-------

----

-------

0

DCN

DCN routing protocol

0

NIST

NIST public modem

0

TSP

TSP time protocol

0

DTS

Digital Time Service

1

ATOM

Atomic clock (calibrated)

1

VLF

VLF radio (OMEGA, etc.)

1

callsign

Generic radio

1

LORC

LORAN-C radionavigation

1

GOES

GOES UHF environment satellite

1

GPS

GPS UHF satellite positioning

1

ACTS

ACTS telephone modem dial-up

1

IRIG

Inter-Range Instrumentation Group signal

6000-100AppD.fm Rev. D

TimeVault™ User’s Manual

D-117

Page 131
Image 131
Symmetricom Time Server user manual Dcn