HP UX 11i v2 Networking Software specification

Introduction to DLPI

DLPI Services

•The DLS provider will discard all DLSDUs submitted before the issuing of the DL_RESET_REQ that have not been delivered to the peer DLS user when the DLS provider issues the DL_RESET_IND.

•The DLS provider will discard all DLSDUs submitted before the issuing of the DL_RESET_RES that have not been delivered to the initiator of the DL_RESET_REQ when the DLS provider issues the DL_RESET_CON.

•No DLSDU transmitted by a DLS user after the synchronization mark in that transmitted stream will be delivered to the other DLS user before the synchronization mark in that received stream.

The complete message ﬂow depends on the origin of the reset, which may be the DLS provider or either DLS user. Figure 1-23 illustrates the message ﬂow for a reset invoked by one DLS user.

Figure 1-23 Message Flow: DLS User-Invoked Connection Reset

DL_RESET request

DL_RESET confirm

DL_RESET indication

DL_RESET response

DL_OK acknowledge

Figure 1-24 illustrates the message ﬂow for a reset invoked by both DLS users simultaneously.

Figure 1-24 Message Flow: Simultaneous DLS User-Invoked Connection Reset

DL_RESET request

DL_RESET confirm

DL_RESET request

DL_RESET confirm

Figure 1-25 illustrates the message ﬂow for a reset invoked by the DLS provider.

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Chapter 1

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HP UX 11i v2 Networking Software manual Message Flow DLS User-Invoked Connection Reset

Contents

Dlpi Programmer’s Guide Edition Legal Notices Page Page Contents Contents Contents Sample Programs Printing History Page Preface Appendix a Sample ProgramsPage Introduction to Dlpi Introduction to Dlpi HP Dlpi Features Device File Format Header Files Service Interface Data Link Layer Dlpi Connection-mode Service Modes of Communication Data Link Layer Connectionless-mode Service Dlpi AddressingPhysical Attachment Identiﬁcation HP PPA Format Data Link User Identiﬁcation HP’s Dlsap Address Format 802.3, Ethernet, Token Ring, Fddi HP’s Dlsap Address Format for Fibre Channel Dlsap Promiscuous Mode Clariﬁcations Dlpi Services Dlinfoack DlerrorackDlinforeq Dlhpppareq Dlresetres DlresetreqDlresetind Dlresetcon Dlhprawdatareq Local Management ServicesInformation Reporting Service Dlhprawdataind Attach Service Bind Service Binding Reserved IEEESAPS/EthertypesSnap Message Flow Binding a Stream to a Dlsap Message Flow Enabling a Speciﬁc Multicast Address on a Connection-mode Services Connection Establishment Service Connection Handoff 12 Message Flow Successful Connection Establishment 13 Message Flow Token Retrieval 16 Message Flow Both Primitives are Destroyed by Provider Data Transfer Service 19 Message Flow Normal Data Transfer Connection Release Service 20 Message Flow DLS User-Invoked Connection Release Reset Service 23 Message Flow DLS User-Invoked Connection Reset Connectionless-mode Services Connectionless Data Transfer Raw-mode Services Error Reporting Service XID and Test Service Raw-mode Data Transfer 31 Message Flow XID Service XID and Test Packet Handling 32 Message Flow Test Service An Example 33 Message Flow a Connection-Mode Example Dlpi Primitives Dlpi Primitives Local Management Primitives PPA Initialization/De-initialization Dlhpppareq Dlhpppaack Dlhpppaack Dlinforeq MTU Dlinfoack Dltpr DlcsmacdDltpb Dlmetro Dlfddi DlcharDlctca Dlother Dlhprawdls DlacldlsDlunknown DLSTYLE1 DLSTYLE2 Dlaccess DlattachreqDlbadppa Dldetachreq DloutstateDlsyserr Dlbindreq Dlbadaddr DlinitfailedDlnotinit Dlbindack Dlunbindreq Dlsubsbindreq Dlpeerbind Dlhierarchicalbind Dlsubsbindack Dltoomany Dlsubsunbindreq Dlenabmultireq Dldisabmultireq Dlnotsupported Dlpromisconreq Dlnotenab Dlpromiscphys DlpromiscsapDlpromiscmulti Dlpromiscoffreq Dlokack Dlerrorack Dlphysaddrreq Dlfactphysaddr Dlcurrphysaddr Dlphysaddrack DlphysaddrackDlsetphysaddrreq Dlphysaddrreq Dlsetphysaddrreq Dlbusy DlgetstatisticsreqDlgetstatisticsack Dlgetstatisticsreq Dlhpmulticastlistreq Dlgetstatisticsack Dlhpmulticastlistack Dlhpmulticastlistack Connectionless-mode Service Primitives Dlunitdatareq Dlbaddata Dlunitdataind Dluderrorind Message is valid in state Dlidle Raw Mode Service Primitives Dlhprawdatareq Dlhprawdataind Dlbadprim Raw Mode Service Primitives Connection-mode Service Primitives Connection-Oriented Dlpi ExtensionsDlhpinforeq Dlhpinfoack Dlhpinforeq Dlhpinfoack Connection-mode Service Primitives Connection-mode Service Primitives Dlhpsetacktoreq Dlhpsetacktoreq Dlhpsetptoreq Dlhpsetptoreq Dlhpsetrejtoreq DlhpsetbusytoreqDlhpsetrejtoreq Dlhpsetsendacktoreq Dlhpsetbusytoreq Dlhpsetmaxretriesreq DlhpsetsendacktoreqDlhpsetmaxretriesreq Dlhpsetackthreshreq DLOUTCONPENDING, Dlinconpending Dlhpsetlocalwinreq Dlhpsetremotewinreq Dlhpclearstatsreq Dlhpsetremotewinreq Dlhpsetlocalbusyreq DlhpclearstatsreqDlhpsetlocalbusyreq Dlhpclearlocalbusyreq Dlhpclearlocalbusyreq Dlconnectreq Dlconnectind DlbadqosparamDlbadqostype 112 Dlconnectres 114 Dlbadcorr DlconnectconDlbadtoken Dlpending 116 Dltokenreq Dltokenack Dldatareq Dldataind Dldisconnectreq 120 Dldisconnectind Dlresetreq Dlresetind Dlresetres Dlresetcon 126 Primitives to Handle XID and Test Operations Dltestreq Dltestind Dltestauto Chapter 129 Dltestres Dltestcon Dlxidreq Dlxidind Dlxidauto 134 Dlxidres Dlpollfinal Dlxidcon Chapter 137 Dlpi States Dlresetres Resetres User Reset DluserresetDlresetcon Prov Reset Dlprovreset Udqos Pend Dludqos Dlinconpending DLDISCON9Pend Pending DLDISCON11 Chapter 141 142 Sample Programs Connection Mode Longareasize Appendix a 145 146 Appendix a 147 148 Appendix a 149 150 Appendix a 151 152 Appendix a 153 154 Appendix a 155 Connectionless Mode Snap SAP Appendix 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 Glossary Connection establishment 174 Glossary Index