RFC relevance of reference

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Network Working Group: D.
Request for Comments: 1708 Vitro Corp
Category: Informational October 1994

NTP PICS
For the Network Time Protocol Version 3

Status of this

This memo provides information for the Internet community. This
does not specify an Internet standard of any kind. Distribution
this memo is unlimited

This RFC describes a PICS Proforma translated into an
acceptable form. The Original document was developed according
ISO 9646 for conformance test purposes. This document is
for both developers and users of the NTP (Network Time Protocol).
This document contains specific information and
characteristics for the use of NTP within the context of
usage. It is suggested, that users wishing to use
synchronization capabilities of the Internet abide by
characteristics set within this document

For more information please contact Dr. David Mills at Mills@udel.
or review RFC 1305 for more information

1.

To evaluate conformance of a particular implementation, it
necessary to have a statement of the capabilities and options
have been implemented for a given protocol. Such a statement
called a Protocol Implementation Conformance Statement (PICS).

2.

This document provides the PICS proforma for the Network
Protocol (NTP) in compliance with the relevant requirements, and
accordance with the relevant guidance, given in ISO/IEC 9646-2.

3. REFERENCE

ISO/IEC 9646-1 1990, Information technology - Open
interconnection - Conformance
methodology and framework - Part 1:
concepts

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RFC 1708 NTP PICS Proforma October 1994

ISO/IEC 9646-2 1990, Information technology - Open
interconnection - Conformance
methodology and framework - Part 2:
test suite specification

RFC 1305 Network Time Protocol (Version 3) -
Specification, Implementation and Analysis -
David L. Mills, University of Delaware -
March 1992.

4.

This document uses the following terms defined in ISO/IEC 9646-1:

a) PICS proforma

b) Protocol Implementation Conformance Statement (PICS);

c) Static conformance review

4.1 SPECIAL

The additional symbols have been identified for use in this document

m Mandatory field/

o.# Optional field/

c# Conditional field/

# Refers to a note # below the

x Prohibited

n/a Not

Y[] Indicates the item is

N[] Indicates the item is not

5. INSTRUCTIONS FOR COMPLETION OF

The supplier of a protocol implementation which is claimed to
to NTP version 3 is required to complete a copy of the PICS
provided in this document and is required to provide the
necessary to identify both the supplier and the implementation

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RFC 1708 NTP PICS Proforma October 1994

6.

Copyright release for PICS proforma. Users of this RFC may
reproduce the PICS proforma in this document so that it can be
for its intended purpose and may further publish the completed PICS

7. IMPLEMENTATION

+=======================================+=======================+
| SUPPLIER | |
| | |
+---------------------------------------+-----------------------+
| | |
| CONTACT POINT FOR | |
| QUERIES ABOUT THE PICS | |
| | |
+---------------------------------------+-----------------------+
| | |
| IMPLEMENTATION NAME | |
| AND VERSION | |
| | |
+---------------------------------------+-----------------------+
| | |
| OTHER INFORMATION | |
| NECESSARY FOR FULL | |
| IDENTIFICATION - e.g. | |
| NAME AND VERSION | |
| FOR MACHINES AND/OR | |
| OPERATING SYSTEMS; | |
| SYSTEM NAME | |
| | |
| | |
| | |
+=======================================+=======================+

8. NETWORK TIME PROTOCOL PICS

8.1 DATA

Item No. NTP Requirements Reference Status
=================================================================
8.1.01 64 bit
stamp 3.1 m Y[] N[]

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RFC 1708 NTP PICS Proforma October 1994

8.2 STATE VARIABLES AND

8.2.1 COMMON

Item No. NTP Requirements Reference Status
=================================================================
8.2.1.01 Peer Address 3.2.1 m Y[] N[]
8.2.1.02 Peer Port 3.2.1 m Y[] N[]
8.2.1.03 Host Address 3.2.1 m Y[] N[]
8.2.1.04 Host Port 3.2.1 m Y[] N[]
8.2.1.05 Leap Indicator 3.2.1 m Y[] N[]
8.2.1.06 Mode 3.2.1 m Y[] N[]
8.2.1.07 Stratum 3.2.1 m Y[] N[]
8.2.1.08 Poll 3.2.1 m Y[] N[]
8.2.1.09 Precision 3.2.1 m Y[] N[]
8.2.1.10 Root Delay 3.2.1 m Y[] N[]
8.2.1.11 Root Dispersion 3.2.1 m Y[] N[]
8.2.1.12 Reference
Identifier 3.2.1 m Y[] N[]
8.2.1.13
Timestamp 3.2.1 m Y[] N[]
8.2.1.14
Timestamp 3.2.1 m Y[] N[]
8.2.1.15
Timestamp 3.2.1 m Y[] N[]
8.2.1.16
Timestamp 3.2.1 m Y[] N[]

8.2.2 SYSTEM

Item No. NTP Requirements Reference Status
=================================================================
8.2.2.01 Local Clock 3.2.2 m Y[] N[]
8.2.2.02 Clock Source 3.2.2 m Y[] N[]

8.2.3 PEER

Item No. NTP Requirements Reference Status
=================================================================
8.2.3.01 Configured Bit 3.2.3 m Y[] N[]
8.2.3.02 Update Timestamp 3.2.3 m Y[] N[]
8.2.3.03
Register 3.2.3 m Y[] N[]
8.2.3.04 Peer Timer 3.2.3 m Y[] N[]

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RFC 1708 NTP PICS Proforma October 1994

8.2.4 PACKET

Item No. NTP Requirements Reference Status
=================================================================
8.2.4.01 Version Number 3.2.4 m Y[] N[]

8.2.5 CLOCK FILTER

Item No. NTP Requirements Reference Status
=================================================================
8.2.5.01 Filter Register 3.2.5 m Y[] N[]
8.2.5.02 Valid
Counter 3.2.5 m Y[] N[]
8.2.5.03 Offset 3.2.5 m Y[] N[]
8.2.5.04 Delay 3.2.5 m Y[] N[]
8.2.5.05 Dispersion 3.2.5 m Y[] N[]

8.2.6 AUTHENTICATION

Item No. NTP Requirements Reference Status
=================================================================
8.2.6.01
Enable Bit 3.2.6 c1 Y[] N[]
8.2.6.02
Bit 3.2.6 c1 Y[] N[]
8.2.6.03 Key Identifier 3.2.6 c1 Y[] N[]
8.2.6.04
Keys 3.2.6 c1 Y[] N[]
8.2.6.05 Crypto Checksum 3.2.6 c1 Y[] N[]

c1: IF authentication is used THEN m ELSE o

8.2.7 PARAMETER

Item No. NTP Requirements Reference Status
=================================================================
8.2.7.01 Version Number = 3 3.2.7 c1 Y[] N[]
8.2.7.02 NTP Port = 123 3.2.7 c1 Y[] N[]
8.2.7.03 Max Stratum = 15 3.2.7 c1 Y[] N[]
8.2.7.04 Max Clock Age =
86,400 sec. 3.2.7 c1 Y[] N[]
8.2.7.05 Max Skew = 1 sec. 3.2.7 c1 Y[] N[]
8.2.7.06 Max Distance = 1 sec. 3.2.7 c1 Y[] N[]
8.2.7.07 Min Polling Interval =
6(64 sec.) 3.2.7 c1 Y[] N[]
8.2.7.08 Max Polling Interval =
10(1024 sec.) 3.2.7 c1 Y[] N[]
8.2.7.09 Min Select Clock = 1 3.2.7 c1 Y[] N[]

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RFC 1708 NTP PICS Proforma October 1994

8.2.7.10 Max Select Clock = 10 3.2.7 c1 Y[] N[]
8.2.7.11 Min Dispersion =
0.01 sec. 3.2.7 c1 Y[] N[]
8.2.7.12 Max Dispersion =
16 sec. 3.2.7 c1 Y[] N[]
8.2.7.13 Reachability
Size = 8 3.2.7 c1 Y[] N[]
8.2.7.14 Filter Size = 8 3.2.7 c1 Y[] N[]
8.2.7.15 Filter Weight = 1/2 3.2.7 c1 Y[] N[]
8.2.7.16 Select Weight = 3/4 3.2.7 c1 Y[] N[]

c1: IF implementation is intended for use on the
THEN m ELSE o

8.2.8 MODES OF

Item No. NTP Requirements Reference Status
=================================================================
8.2.8.01 Symmetric Active 3.3 o.1 Y[] N[]
8.2.8.02 Symmetric Passive 3.3 o.1 Y[] N[]
8.2.8.03 Client 3.3 o.1 Y[] N[]
8.2.8.04 Server 3.3 o.1 Y[] N[]
8.2.8.05 Broadcast 3.3 o.1 Y[] N[]

o.1:At least one mode must be implemented

8.2.9 EVENT

8.2.9.1 TRANSMIT

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.1.01 Transmit Procedure 3.4.2 m Y[] N[]
8.2.9.1.02 Authentication 3.4.2 o Y[] N[]

8.2.9.2 RECEIVE

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.2.01 Receive Procedure 3.4.3 m Y[] N[]
8.2.9.2.02 Control Messages 3.4.3 o.1 Y[] N[]
8.2.9.2.03 Authentication 3.4.3 o Y[] N[]

o.1:If implemented then section 8.6 must be completed

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RFC 1708 NTP PICS Proforma October 1994

8.2.9.3 PACKET

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.3.01 Packet Procedure 3.4.4 m Y[] N[]
8.2.9.3.02 Authentication 3.4.4 o Y[] N[]

8.2.9.4 CLOCK UPDATE

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.4.01 Clock Update 3.4.5 m Y[] N[]

8.2.9.5 PRIMARY CLOCK

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.5.01 Primary Clock 3.4.6 m Y[] N[]

8.2.9.6 INITIALIZATION

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.6.01 Initialization 3.4.7.1 m Y[] N[]
8.2.9.6.02 Authentication 3.4.7.1 o Y[] N[]

8.2.9.7 INITIALIZATION INSTANTIATION

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.7.01
Instantiation 3.4.7.2 m Y[] N[]
8.2.9.7.02 Authentication 3.4.7.2 o Y[] N[]

8.2.9.8 RECEIVE INSTANTIATION

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.8.01 Receive Instantiation 3.4.7.3 m Y[] N[]
8.2.9.8.02 Authentication 3.4.7.3 o Y[] N[]

8.2.9.9 PRIMARY CLOCK INSTANTIATION

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.9.01 Clock Instantiation 3.4.7.4 m Y[] N[]

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RFC 1708 NTP PICS Proforma October 1994

8.2.9.10 CLEAR

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.10.01 Clear Proc. 3.4.8 m Y[] N[]

8.2.9.11 POLL UPDATE

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.11.01 Poll Update 3.4.9 m Y[] N[]

8.2.9.12 SYNCHRONIZATION DISTANCE

Item No. NTP Requirements Reference Status
=================================================================
8.2.9.12.01 Distance Proc. 3.5 m Y[] N[]

8.3 FILTERING AND SELECTION

8.3.1 CLOCK FILTER

Item No. NTP Requirements Reference Status
=================================================================
8.3.1.01 Clock Filter 4.1 o Y[] N[]

8.3.2 CLOCK SELECTION

Item No. NTP Requirements Reference Status
=================================================================
8.3.2.01 Clock
Procedure 4.2 o Y[] N[]
8.3.2.02 Intersection Algorithm 4.2.1 c1 Y[] N[]
8.3.2.03 Clustering Algorithm 4.2.2 c1 Y[] N[]

c1: IF Clock Selection Procedure implemented THEN m ELSE o

8.4 LOCAL

Item No. NTP Requirements Reference Status
=================================================================
8.4.01 Logical Clock 5 m Y[] N[]

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RFC 1708 NTP PICS Proforma October 1994

8.4.1 FUZZBALL LOCAL CLOCK

8.4.1.1 CRYSTAL OSCILLATOR BASED IMPLEMENTATION PARAMETER

Item No. NTP Requirements Reference Status
=================================================================
8.4.1.1.01 Adjustment Interval =
4 sec. 5.1 c1 Y[] N[]
8.4.1.1.02 PPS Timeout = 60 sec. 5.1 c1 Y[] N[]
8.4.1.1.02 Step Timeout =
900 sec. 5.1 c1 Y[] N[]
8.4.1.1.02 Maximum Aperture =
q128 ms 5.1 c1 Y[] N[]
8.4.1.1.03 Frequency Weight = 16 5.1 c1 Y[] N[]
8.4.1.1.04 Phase Weight = 8 5.1 c1 Y[] N[]
8.4.1.1.05 Compliance Weight = 13 5.1 c1 Y[] N[]
8.4.1.1.06 Compliance Maximum = 4 5.1 c1 Y[] N[]
8.4.1.1.07
Multiplier = 4 5.1 c1 Y[] N[]

c1:IF implementing a fuzzball using a crystal
based local clock THEN m ELSE o

8.4.1.2 MAIN SYSTEM CLOCK IMPLEMENTATION PARAMETER

Item No. NTP Requirements Reference Status
=================================================================
8.4.1.2.01
Interval = 1 sec. 5.1 c1 Y[] N[]
8.4.1.2.02 PPS Timeout = 60 sec. 5.1 c1 Y[] N[]
8.4.1.2.02 Step Timeout =
900 sec. 5.1 c1 Y[] N[]
8.4.1.2.02 Maximum Aperture =
q512 ms 5.1 c1 Y[] N[]
8.4.1.2.03 Frequency Weight = 16 5.1 c1 Y[] N[]
8.4.1.2.04 Phase Weight = 9 5.1 c1 Y[] N[]
8.4.1.2.05 Compliance Weight = 13 5.1 c1 Y[] N[]
8.4.1.2.06 Compliance Maximum = 4 5.1 c1 Y[] N[]
8.4.1.2.07
Multiplier = 4 5.1 c1 Y[] N[]

c1:IF implementing a fuzzball using a main system
THEN m ELSE o

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RFC 1708 NTP PICS Proforma October 1994

8.4.2 PHASE

Item No. NTP Requirements Reference Status
=================================================================
8.4.2.01 Gradual
Adjustment 5.2 m Y[] N[]
8.4.2.02 Step Phase Adjustment 5.3 m Y[] N[]

8.5 NTP DATA

Item No. NTP Requirements Reference Status
=================================================================
8.5.01 Leap
is a 2 bit code App. A m Y[] N[]
8.5.02 Version
is a 3 bit integer App. A m Y[] N[]
8.5.03
is a 3 bit integer App. A m Y[] N[]
8.5.04 Stratum is an 8
bit integer App. A m Y[] N[]
8.5.05 Poll is an 8
signed integer App. A m Y[] N[]
8.5.06 Precision is
8 bit signed integer App. A m Y[] N[]
8.5.07 Root Delay is a 32 bit
fixed-point number App. A m Y[] N[]
8.5.08 Root Dispersion is a 32
fixed-point number App. A m Y[] N[]
8.5.09 Reference Identifier is a 4
octet, left justified,
padded ASCII string App. A m Y[] N[]
8.5.10 Reference Timestamp is a 64
bit timestamp format App. A m Y[] N[]
8.5.11 Originate Timestamp is a 64
bit timestamp format App. A m Y[] N[]
8.5.12 Receive Timestamp is a 64
bit timestamp format App. A m Y[] N[]
8.5.13 Transmit Timestamp is a 64
bit timestamp format App. A m Y[] N[]
8.5.14 Authenticator 96 bits App. A o Y[] N[]

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RFC 1708 NTP PICS Proforma October 1994

8.6 NTP Control

8.6.1 NTP Control Message Header

Item No. NTP Requirements Reference Status
=================================================================
8.6.1.01 Leap
is a 2 bit code App. B.1 c1 Y[] N[]
8.6.1.02 Version
is a 3 bit integer App. B.1 c1 Y[] N[]
8.6.1.03 Mode is a 3
integer App. B.1 c1 Y[] N[]
8.6.1.04 Response bit
a 1 Bit field App. B.1 c1 Y[] N[]
8.6.1.05 Error bit is a 1
bit field App. B.1 c1 Y[] N[]
8.6.1.06 More bit is a 1
bit field App. B.1 c1 Y[] N[]

Item No. NTP Requirements Reference Status
=================================================================
8.6.1.07 Operation
is a 5 bit integer App. B.1 c1 Y[] N[]
8.6.1.08 Sequence is a 16
bit integer App. B.1 c1 Y[] N[]
8.6.1.09 Status is a 16
bit code App. B.1 c1 Y[] N[]
8.6.1.10 Association
is a 16 bit integer App. B.1 c1 Y[] N[]
8.6.1.11 Offset is a 16
bit integer App. B.1 c1 Y[] N[]
8.6.1.12 Count is a 16
bit integer App. B.1 c1 Y[] N[]
8.6.1.13 Data is
maximum of 468 octets App. B.1 c1 Y[] N[]
8.6.1.14
96 bits App. B.1 c1 Y[] N[]

c1: IF control messages are used THEN m ELSE o

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RFC 1708 NTP PICS Proforma October 1994

8.6.1.1 NTP Control Message Required

Item No. NTP Requirements Reference Status
=================================================================
8.6.1.1.01 Leap Indicator = 00 App. B.1 c1 Y[] N[]
8.6.1.1.02 Version Number = 3 App. B.1 c1 Y[] N[]
8.6.1.1.03 Mode = 6 App. B.1 c1 Y[] N[]

c1:IF control messages are used THEN m ELSE o

8.6.2 System

8.6.2.1 System Status

Item No. NTP Requirements Reference Status
=================================================================
8.6.2.1.01 Leap
is a 2 bit code App.B.2.1 c1 Y[] N[]
8.6.2.1.02 Clock Source
a 6 bit integer App.B.2.1 c1 Y[] N[]
8.6.2.1.03 System Event
is a 4 bit integer App.B.2.1 c1 Y[] N[]
8.6.2.1.04 System Event
is a 4 bit integer App.B.2.1 c1 Y[] N[]

c1:IF control messages are used THEN m ELSE o

8.6.2.2 Peer Status

Item No. NTP Requirements Reference Status
=================================================================
8.6.2.2.01 Peer Status is
5 bit code App.B.2.2 c1 Y[] N[]
8.6.2.2.02 Peer
is a 3 bitinteger App.B.2.2 c1 Y[] N[]
8.6.2.2.03 Peer Event
is a 4 bit integer App.B.2.2 c1 Y[] N[]
8.6.2.2.04 Peer Event
is a 4 bit integer App.B.2.2 c1 Y[] N[]

c1:IF control messages are used THEN m ELSE o

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RFC 1708 NTP PICS Proforma October 1994

8.6.2.3 Clock Status

Item No. NTP Requirements Reference Status
=================================================================
8.6.2.3.01 Clock Status
an 8 bit integer App.B.2.3 c1 Y[] N[]
8.6.2.3.02 Clock Event
is an 8 bit integer App.B.2.3 c1 Y[] N[]

c1:IF control messages are used THEN m ELSE o

8.6.2.4 Error Status

Item No. NTP Requirements Reference Status
=================================================================
8.6.2.4.01 Error Status
an 8 bit integer App.B.2.4 c1 Y[] N[]

c1:IF control messages are used THEN m ELSE o

9. Security

Security issues are not discussed in this

10.

[1] Mills. D., "Network Time Protocol Version 3 - Specification
Implementation and Analysis", RFC 1305, UDEL, March 1992.

11. Author's

Dan R.
Vitro a Tracor
5001 N. St. Rd. 37 (BUS
Bloomington, IN 47404-1626

Phone: (812) 336-2299 x379
Fax: (812) 333-0415
EMail: drg508@crane-ns.nwscc.sea06.navy.

Gowin [Page 13]

if you see any problems within the linking, don't worry be happy,
this is version 0.1 of the Relevance System and you gotta expect some crappy subroutines sometimes,
just be content we did not write this in Java, which would have made this "bigger and better" HAHAHHA.

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