HP UX 11i v2 Networking Software manual Raw-mode Data Transfer, XID and Test Service

Page 45

Introduction to DLPI

DLPI Services

Raw-mode Data Transfer

The raw-mode data transfer service provides the same service as the connectionless data transfer service. The only difference is that the raw- mode DLS user builds the complete MAC and LLC headers prior to data transfer, whereas the connectionless-mode DLS user merely speciﬁes the peer DLS user and the DLS provider then builds the complete MAC and LLC headers before transferring the packet.

The DL_HP_RAWDATA_REQ conveys one DLSDU to the DLS provider. The DL_HP_RAWDATA_IND conveys one DLSDU to the DLS user. The normal ﬂow of messages is illustrated in Figure 1-29.

Figure 1-29 Message Flow: Raw Data Transfer

DL_HP_RAWDATA request

DL_HP_RAWDATA indication

Error Reporting Service

The raw-mode error reporting service provides the same services as the connectionless-mode error reporting services. However, the DL_ERROR_ACK primitive is used in place of the DL_UDERROR primitive to report all error conditions in raw-mode.

Figure 1-30 Raw-Mode Error Reporting

DL_ERROR_ACK indication

XID and TEST Service

The XID and TEST service enables the DLS user to issue an XID or TEST request to the DLS provider. On receiving a response for the XID or TEST frame transmitted to the peer DLS provider, the DLS provider sends up an XIS or TEST conﬁrmation primitive to the DLS user. On receiving an XID or TEST frame from the peer DLS provider, the local

Chapter 1

45

Image 45

Contents Edition Dlpi Programmer’s GuideLegal Notices Page Page Contents Contents Contents Sample Programs Printing History Page Appendix a Sample Programs PrefacePage Introduction to Dlpi Introduction to Dlpi HP Dlpi Features Header Files Device File FormatData Link Layer Service InterfaceDlpi Modes of Communication Connection-mode ServiceData Link Layer Connectionless-mode Service Dlpi AddressingPhysical Attachment Identiﬁcation HP PPA Format HP’s Dlsap Address Format 802.3, Ethernet, Token Ring, Fddi Data Link User IdentiﬁcationHP’s Dlsap Address Format for Fibre Channel Dlsap Promiscuous Mode Clariﬁcations Dlpi Services Dlinforeq DlerrorackDlinfoack DlhpppareqDlresetind DlresetreqDlresetres DlresetconInformation Reporting Service Local Management ServicesDlhprawdatareq DlhprawdataindBind Service Attach ServiceBinding Reserved IEEESAPS/EthertypesSnap Message Flow Binding a Stream to a Dlsap Message Flow Enabling a Speciﬁc Multicast Address on a Connection Establishment Service Connection-mode Services12 Message Flow Successful Connection Establishment Connection Handoff13 Message Flow Token Retrieval 16 Message Flow Both Primitives are Destroyed by Provider 19 Message Flow Normal Data Transfer Data Transfer Service20 Message Flow DLS User-Invoked Connection Release Connection Release ServiceReset Service 23 Message Flow DLS User-Invoked Connection Reset Connectionless Data Transfer Connectionless-mode ServicesError Reporting Service Raw-mode ServicesRaw-mode Data Transfer XID and Test ServiceXID and Test Packet Handling 31 Message Flow XID ServiceAn Example 32 Message Flow Test Service33 Message Flow a Connection-Mode Example Dlpi Primitives Dlpi Primitives PPA Initialization/De-initialization Local Management PrimitivesDlhpppareq Dlhpppaack Dlhpppaack MTU DlinforeqDlinfoack Dltpb DlcsmacdDltpr DlmetroDlctca DlcharDlfddi DlotherDlhprawdls DlacldlsDlunknown DLSTYLE2 DLSTYLE1Dlaccess DlattachreqDlbadppa Dldetachreq DloutstateDlsyserr Dlbindreq Dlbadaddr DlinitfailedDlnotinit Dlbindack Dlunbindreq Dlsubsbindreq Dlhierarchicalbind DlpeerbindDltoomany DlsubsbindackDlsubsunbindreq Dlenabmultireq Dlnotsupported DldisabmultireqDlnotenab DlpromisconreqDlpromiscphys DlpromiscsapDlpromiscmulti Dlpromiscoffreq Dlokack Dlerrorack Dlphysaddrreq Dlfactphysaddr Dlcurrphysaddr Dlsetphysaddrreq DlphysaddrackDlphysaddrack DlphysaddrreqDlsetphysaddrreq Dlgetstatisticsack DlgetstatisticsreqDlbusy DlgetstatisticsreqDlgetstatisticsack DlhpmulticastlistreqDlhpmulticastlistack Dlhpmulticastlistack Dlunitdatareq Connectionless-mode Service PrimitivesDlbaddata Dlunitdataind Dluderrorind Message is valid in state Dlidle Dlhprawdatareq Raw Mode Service PrimitivesDlbadprim DlhprawdataindRaw Mode Service Primitives Connection-mode Service Primitives Connection-Oriented Dlpi ExtensionsDlhpinforeq Dlhpinforeq DlhpinfoackDlhpinfoack Connection-mode Service Primitives Connection-mode Service Primitives Dlhpsetacktoreq DlhpsetacktoreqDlhpsetptoreq DlhpsetptoreqDlhpsetrejtoreq DlhpsetbusytoreqDlhpsetrejtoreq Dlhpsetbusytoreq DlhpsetsendacktoreqDlhpsetmaxretriesreq DlhpsetsendacktoreqDlhpsetmaxretriesreq DLOUTCONPENDING, Dlinconpending DlhpsetackthreshreqDlhpsetlocalwinreq Dlhpsetremotewinreq Dlhpsetremotewinreq DlhpclearstatsreqDlhpsetlocalbusyreq DlhpclearstatsreqDlhpsetlocalbusyreq Dlhpclearlocalbusyreq DlhpclearlocalbusyreqDlconnectreq Dlconnectind DlbadqosparamDlbadqostype 112 Dlconnectres 114 Dlbadtoken DlconnectconDlbadcorr Dlpending116 Dltokenack DltokenreqDldatareq Dldisconnectreq Dldataind120 Dldisconnectind Dlresetreq Dlresetind Dlresetres Dlresetcon 126 Dltestreq Primitives to Handle XID and Test OperationsDltestauto DltestindChapter 129 Dltestres Dltestcon Dlxidreq Dlxidauto Dlxidind134 Dlpollfinal DlxidresDlxidcon Chapter 137 Dlpi States Dlresetcon Prov Reset Dlprovreset User Reset DluserresetDlresetres Resetres Udqos Pend DludqosPend Pending DLDISCON9Dlinconpending DLDISCON11Chapter 141 142 Sample Programs Longareasize Connection ModeAppendix a 145 146 Appendix a 147 148 Appendix a 149 150 Appendix a 151 152 Appendix a 153 154 Appendix a 155 Snap SAP Connectionless ModeAppendix a 157 158 Appendix a 159 160 Appendix a 161 162 Appendix a 163 164 Appendix a 165 166 Raw Mode 168 Appendix a 169 170 Appendix a 171 Raw Mode 172 Connection establishment Glossary174 Glossary Index

Related manuals

Manual 94 pages 16.8 Kb

Manual 74 pages 39 Kb

Manual 236 pages 18.16 Kb

Manual 12 pages 39.66 Kb

Manual 28 pages 49.76 Kb