📄 rfc1708.txt
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8.2.9.6.02 Authentication 3.4.7.1 o Y[] N[]8.2.9.7 INITIALIZATION INSTANTIATION PROCEDURE Item No. NTP Requirements Reference Status Support ================================================================= 8.2.9.7.01 Initialization 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 PROCEDURE Item No. NTP Requirements Reference Status Support ================================================================= 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 PROCEDURE Item No. NTP Requirements Reference Status Support ================================================================= 8.2.9.9.01 Clock Instantiation 3.4.7.4 m Y[] N[]Gowin [Page 7] RFC 1708 NTP PICS Proforma October 19948.2.9.10 CLEAR PROCEDURE Item No. NTP Requirements Reference Status Support ================================================================= 8.2.9.10.01 Clear Proc. 3.4.8 m Y[] N[]8.2.9.11 POLL UPDATE PROCEDURE Item No. NTP Requirements Reference Status Support ================================================================= 8.2.9.11.01 Poll Update 3.4.9 m Y[] N[]8.2.9.12 SYNCHRONIZATION DISTANCE PROCEDURE Item No. NTP Requirements Reference Status Support ================================================================= 8.2.9.12.01 Distance Proc. 3.5 m Y[] N[]8.3 FILTERING AND SELECTION ALGORITHMS8.3.1 CLOCK FILTER PROCEDURE Item No. NTP Requirements Reference Status Support ================================================================= 8.3.1.01 Clock Filter 4.1 o Y[] N[]8.3.2 CLOCK SELECTION PROCEDURE Item No. NTP Requirements Reference Status Support ================================================================= 8.3.2.01 Clock Selection 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 CLOCKS Item No. NTP Requirements Reference Status Support ================================================================= 8.4.01 Logical Clock 5 m Y[] N[]Gowin [Page 8] RFC 1708 NTP PICS Proforma October 19948.4.1 FUZZBALL LOCAL CLOCK IMPLEMENTATIONS8.4.1.1 CRYSTAL OSCILLATOR BASED IMPLEMENTATION PARAMETER VALUES Item No. NTP Requirements Reference Status Support ================================================================= 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 Compliance Multiplier = 4 5.1 c1 Y[] N[] c1:IF implementing a fuzzball using a crystal oscillator based local clock THEN m ELSE o.8.4.1.2 MAIN SYSTEM CLOCK IMPLEMENTATION PARAMETER VALUES Item No. NTP Requirements Reference Status Support ================================================================= 8.4.1.2.01 Adjustment 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 Compliance Multiplier = 4 5.1 c1 Y[] N[] c1:IF implementing a fuzzball using a main system clock THEN m ELSE o.Gowin [Page 9] RFC 1708 NTP PICS Proforma October 19948.4.2 PHASE ADJUSTMENT Item No. NTP Requirements Reference Status Support ================================================================= 8.4.2.01 Gradual Phase Adjustment 5.2 m Y[] N[] 8.4.2.02 Step Phase Adjustment 5.3 m Y[] N[]8.5 NTP DATA FORMAT Item No. NTP Requirements Reference Status Support ================================================================= 8.5.01 Leap Indicator is a 2 bit code App. A m Y[] N[] 8.5.02 Version Number is a 3 bit integer App. A m Y[] N[] 8.5.03 Mode 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 bit signed integer App. A m Y[] N[] 8.5.06 Precision is an 8 bit signed integer App. A m Y[] N[] 8.5.07 Root Delay is a 32 bit signed fixed-point number App. A m Y[] N[] 8.5.08 Root Dispersion is a 32 bit fixed-point number App. A m Y[] N[] 8.5.09 Reference Identifier is a 4 octet, left justified, zero 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[]Gowin [Page 10] RFC 1708 NTP PICS Proforma October 19948.6 NTP Control Messages8.6.1 NTP Control Message Header Format Item No. NTP Requirements Reference Status Support ================================================================= 8.6.1.01 Leap Indicator is a 2 bit code App. B.1 c1 Y[] N[] 8.6.1.02 Version Number is a 3 bit integer App. B.1 c1 Y[] N[] 8.6.1.03 Mode is a 3 bit integer App. B.1 c1 Y[] N[] 8.6.1.04 Response bit is 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 Support ================================================================= 8.6.1.07 Operation Code 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 ID 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 a maximum of 468 octets App. B.1 c1 Y[] N[] 8.6.1.14 Authenticator 96 bits App. B.1 c1 Y[] N[] c1: IF control messages are used THEN m ELSE o.Gowin [Page 11] RFC 1708 NTP PICS Proforma October 19948.6.1.1 NTP Control Message Required Values Item No. NTP Requirements Reference Status Support ================================================================= 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 Words8.6.2.1 System Status Word Item No. NTP Requirements Reference Status Support ================================================================= 8.6.2.1.01 Leap Indicator is a 2 bit code App.B.2.1 c1 Y[] N[] 8.6.2.1.02 Clock Source is a 6 bit integer App.B.2.1 c1 Y[] N[] 8.6.2.1.03 System Event Counter is a 4 bit integer App.B.2.1 c1 Y[] N[] 8.6.2.1.04 System Event Code 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 Word Item No. NTP Requirements Reference Status Support ================================================================= 8.6.2.2.01 Peer Status is a 5 bit code App.B.2.2 c1 Y[] N[] 8.6.2.2.02 Peer Selection is a 3 bitinteger App.B.2.2 c1 Y[] N[] 8.6.2.2.03 Peer Event Counter is a 4 bit integer App.B.2.2 c1 Y[] N[] 8.6.2.2.04 Peer Event Code is a 4 bit integer App.B.2.2 c1 Y[] N[] c1:IF control messages are used THEN m ELSE o.Gowin [Page 12] RFC 1708 NTP PICS Proforma October 19948.6.2.3 Clock Status Word Item No. NTP Requirements Reference Status Support ================================================================= 8.6.2.3.01 Clock Status is an 8 bit integer App.B.2.3 c1 Y[] N[] 8.6.2.3.02 Clock Event Code 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 Word Item No. NTP Requirements Reference Status Support ================================================================= 8.6.2.4.01 Error Status is an 8 bit integer App.B.2.4 c1 Y[] N[] c1:IF control messages are used THEN m ELSE o.9. Security Considerations Security issues are not discussed in this memo10. References [1] Mills. D., "Network Time Protocol Version 3 - Specification, Implementation and Analysis", RFC 1305, UDEL, March 1992.11. Author's Address Dan R. Gowin Vitro a Tracor Company 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.MILGowin [Page 13] ⌨️ 快捷键说明
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