Connection-mode Services | HP UX 11i v2 Networking Software manual

Introduction to DLPI

DLPI Services

DL_PROMISCOFF_REQ requests the DLS provider to disable promiscuous mode on a per stream basis, either at the physical level of at the SAP level. The provider indicates success with a DL_OK_ACK message and failure with a DL_ERROR_ACK message.

The normal message sequence is illustrated in Figure 1-11.

Figure 1-11 Message Flow: Disabling Promiscuous Mode on a Stream

DL_PROMISCOFF request

DL_OK acknowledge

Connection-mode Services

The connection-mode services enable a DLS user to establish a data link connection, transfer data over that connection, reset the link, and release the connection when the conversation has terminated.

Connection Establishment Service

The connection establishment service establishes a data link connection between a local DLS user and a remote DLS user for the purpose of sending data. Only one data link connection is allowed on each stream.

Normal Connection Establishment. In the connection establishment model, the calling DLS user initiates connection establishment, while the called DLS user waits for incoming requests. DL_CONNECT_REQ requests that the DLS provider establish a connection. DL_CONNECT_IND informs the called DLS user of the request, which may be accepted using DL_CONNECT_RES. DL_CONNECT_CON informs the calling DLS user that the connection has been established.

The normal sequence of messages is illustrated in Figure 1-12.

Chapter 1

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HP UX 11i v2 Networking Software manual Connection-mode Services, Connection Establishment Service

Contents

Edition Dlpi Programmer’s Guide Legal 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 Format Data Link Layer Service Interface Dlpi Modes of Communication Connection-mode Service Data Link Layer Physical Attachment Identiﬁcation Connectionless-mode ServiceDlpi Addressing HP PPA Format HP’s Dlsap Address Format 802.3, Ethernet, Token Ring, Fddi Data Link User Identiﬁcation HP’s Dlsap Address Format for Fibre Channel Dlsap Promiscuous Mode Clariﬁcations Dlpi Services Dlhpppareq DlerrorackDlinforeq Dlinfoack Dlresetcon DlresetreqDlresetind Dlresetres Dlhprawdataind Local Management ServicesInformation Reporting Service Dlhprawdatareq Bind Service Attach Service Snap BindingReserved IEEESAPS/Ethertypes Message Flow Binding a Stream to a Dlsap Message Flow Enabling a Speciﬁc Multicast Address on a Connection Establishment Service Connection-mode Services 12 Message Flow Successful Connection Establishment Connection Handoff 13 Message Flow Token Retrieval 16 Message Flow Both Primitives are Destroyed by Provider 19 Message Flow Normal Data Transfer Data Transfer Service 20 Message Flow DLS User-Invoked Connection Release Connection Release Service Reset Service 23 Message Flow DLS User-Invoked Connection Reset Connectionless Data Transfer Connectionless-mode Services Error Reporting Service Raw-mode Services Raw-mode Data Transfer XID and Test Service XID and Test Packet Handling 31 Message Flow XID Service An Example 32 Message Flow Test Service 33 Message Flow a Connection-Mode Example Dlpi Primitives Dlpi Primitives PPA Initialization/De-initialization Local Management Primitives Dlhpppareq Dlhpppaack Dlhpppaack MTU Dlinforeq Dlinfoack Dlmetro DlcsmacdDltpb Dltpr Dlother DlcharDlctca Dlfddi Dlunknown DlhprawdlsDlacldls DLSTYLE2 DLSTYLE1 Dlbadppa DlaccessDlattachreq Dlsyserr DldetachreqDloutstate Dlbindreq Dlnotinit DlbadaddrDlinitfailed Dlbindack Dlunbindreq Dlsubsbindreq Dlhierarchicalbind Dlpeerbind Dltoomany Dlsubsbindack Dlsubsunbindreq Dlenabmultireq Dlnotsupported Dldisabmultireq Dlnotenab Dlpromisconreq Dlpromiscmulti DlpromiscphysDlpromiscsap Dlpromiscoffreq Dlokack Dlerrorack Dlphysaddrreq Dlfactphysaddr Dlcurrphysaddr Dlphysaddrreq DlphysaddrackDlsetphysaddrreq Dlphysaddrack Dlsetphysaddrreq Dlgetstatisticsreq DlgetstatisticsreqDlgetstatisticsack Dlbusy Dlgetstatisticsack Dlhpmulticastlistreq Dlhpmulticastlistack Dlhpmulticastlistack Dlunitdatareq Connectionless-mode Service Primitives Dlbaddata Dlunitdataind Dluderrorind Message is valid in state Dlidle Dlhprawdatareq Raw Mode Service Primitives Dlbadprim Dlhprawdataind Raw Mode Service Primitives Dlhpinforeq Connection-mode Service PrimitivesConnection-Oriented Dlpi Extensions Dlhpinforeq Dlhpinfoack Dlhpinfoack Connection-mode Service Primitives Connection-mode Service Primitives Dlhpsetacktoreq Dlhpsetacktoreq Dlhpsetptoreq Dlhpsetptoreq Dlhpsetrejtoreq DlhpsetrejtoreqDlhpsetbusytoreq Dlhpsetbusytoreq Dlhpsetsendacktoreq Dlhpsetmaxretriesreq DlhpsetmaxretriesreqDlhpsetsendacktoreq DLOUTCONPENDING, Dlinconpending Dlhpsetackthreshreq Dlhpsetlocalwinreq Dlhpsetremotewinreq Dlhpsetremotewinreq Dlhpclearstatsreq Dlhpsetlocalbusyreq DlhpsetlocalbusyreqDlhpclearstatsreq Dlhpclearlocalbusyreq Dlhpclearlocalbusyreq Dlconnectreq Dlbadqostype DlconnectindDlbadqosparam 112 Dlconnectres 114 Dlpending DlconnectconDlbadtoken Dlbadcorr 116 Dltokenack Dltokenreq Dldatareq Dldisconnectreq Dldataind 120 Dldisconnectind Dlresetreq Dlresetind Dlresetres Dlresetcon 126 Dltestreq Primitives to Handle XID and Test Operations Dltestauto Dltestind Chapter 129 Dltestres Dltestcon Dlxidreq Dlxidauto Dlxidind 134 Dlpollfinal Dlxidres Dlxidcon Chapter 137 Dlpi States Udqos Pend Dludqos User Reset DluserresetDlresetcon Prov Reset Dlprovreset Dlresetres Resetres DLDISCON11 DLDISCON9Pend Pending Dlinconpending Chapter 141 142 Sample Programs Longareasize Connection Mode Appendix 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 Mode 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 Connection establishment Glossary 174 Glossary Index