SEMI E37-0298 HIGH-SPEED SECS MESSAGE SERVICES (HSMS) GENERIC

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1、SEMIE37-0298N/A©SEMI1995,1998HIGH-SPEEDSECSMESSAGESERVICES(HSMS)GENERICSERVICES1PurposeIETFRFC1120ÑRequirementsforInternetHosts-CommunicationLayersHSMSprovidesameansforindependentmanufactur-erstoproduceimplementationswhichcanbecon-IETFRFC1340ÑAssignedNumbers.Note:Th

2、isnectedandinteroperatewithoutrequiringspeciÞcRFCsupersedesRFC820.knowledgeofoneanother.23.3POSIXDocumentHSMSisintendedasanalternativetoSEMIE4IEEEPOSIXP1003.12ÑProtocolIndependentInter-(SECS-I)forapplicationswherehigherspeedcommu-faces(PII)nicationisneededorwhenasim

3、plepoint-to-pointtopologyisinsufÞcient.SEMIE4(SECS-I)canstillbe4TerminologyusedinapplicationswheretheseandotherattributesofHSMSarenotrequired.APIÑApplicationProgramInterface.InthecaseofTCP/IP,asetofprogrammingconventionsusedbyanHSMSisalsointendedasanalternativetoSEM

4、IE13applicationprogramtopreparefororinvokeTCP/IP(SECSMessageServices)forapplicationswhereTCP/capabilities.IPispreferredoverOSI.communicationfailureÑAfailureinthecommunica-ItisintendedthatHSMSbesupplementedbysubsid-tionlinkresultingfromatransitiontotheNOTCON-iarystan

5、dardswhichfurtherspecifydetailsofitsuseNECTEDstatefromtheSELECTEDstate.(Seeorimposerestrictionsonitsuseinparticularapplica-Section9.)tiondomains.conÞrmedservice(HSMS)ÑAnHSMSservice2Scoperequestedbysendingamessagefromtheinitiatortotherespondingentitywhichrequiresthat

6、completionHigh-SpeedSECSMessageServices(HSMS)deÞnesoftheservicebeindicatedbyaresponsemessagefromacommunicationinterfacesuitablefortheexchangeoftherespondingentitytotheinitiator.messagesbetweencomputersinasemiconductorfac-tory.connectionÑAlogicallinkageestablishedona

7、TCP/IPLANbetweentwoentitiesforthepurposesof3ReferencedDocumentsexchangingmessages.3.1SEMIStandardscontrolmessageÑAnHSMSmessageusedforthemanagementofHSMSsessionsbetweentwoentities.SEMIE4ÑSEMIEquipmentCommunicationStan-dard1ÑMessageTransport(SECS-I)datamessageÑAnHSMSm

8、essageusedforcommu-nicationofapplication-speciÞcdatawithinanHSMSSEMIE5ÑSEMIEquipmentCommunicationStan-session.ADataMessagecanbeaPrimaryMes