Binding, Snap | HP UX 11i v2 Networking Software specification

Introduction to DLPI

DLPI Services

Binding

The following protocol values are currently supported by the DLPI driver:

•IEEE802.2 SAPS

•ethernet types

•SNAP

Valid IEEE802.2 SAPS include even numbers from 0-255, excluding reserved SAPS (see the section “Reserved IEEESAPS/Ethertypes”). Valid ethernet types range from 0x600 to 0xFFFF, excluding reserved ethertypes (see the section “Reserved IEEESAPS/Ethertypes”). The SNAP protocol values contain three bytes of organization ID plus two bytes of additional data. If the ﬁrst three bytes are 0, the following two bytes are an ethernet type with valid values from 0x0-0xFFFF. If the ﬁrst three bytes are non-zero, the following two bytes are organization speciﬁc with valid values from 0x0-0xFFFF.

IEEE802.2 SAPS and ethernet types are bound to the driver via the DL_BIND_REQ or the DL_SUBS_BIND_REQ (DL_PEER_BIND class only). SNAP protocol values can be logged in two ways. The ﬁrst method requires you to ﬁrst bind the SNAP SAP 0xAA via the DL_BIND_REQ primitive. You then must issue a DL_SUBS_BIND_REQ (must be DL_HIERARCHICAL_BIND class) with the ﬁve bytes of SNAP data. The second method requires you to bind any non-SNAP protocol value via the DL_BIND_REQ primitive and then issue a DL_SUBS_BIND_REQ (must be DL_PEER_BIND class) with six bytes of data. The ﬁrst byte must be the SNAP SAP 0xAA followed by ﬁve bytes of SNAP data.

Reserved IEEESAPS/Ethertypes

Refer to the IETF RFC 1010 “Assigned Numbers.”

The DLS provider indicates success with a DL_BIND_ACK or a

DL_SUBS_BIND_ACK message and failure with a DL_ERROR_ACK message.

The normal ﬂow of messages is illustrated in Figure 1-6.

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Chapter 1

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HP UX 11i v2 Networking Software manual Binding, Reserved IEEESAPS/Ethertypes, Snap

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 Physical Attachment Identiﬁcation Connectionless-mode ServiceDlpi Addressing 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 Dlerrorack DlinforeqDlinfoack Dlhpppareq Dlresetreq DlresetindDlresetres Dlresetcon Local Management Services Information Reporting ServiceDlhprawdatareq Dlhprawdataind Attach Service Bind Service Snap BindingReserved IEEESAPS/Ethertypes 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 Dlcsmacd DltpbDltpr Dlmetro Dlchar DlctcaDlfddi Dlother Dlunknown DlhprawdlsDlacldls DLSTYLE1 DLSTYLE2 Dlbadppa DlaccessDlattachreq Dlsyserr DldetachreqDloutstate Dlbindreq Dlnotinit DlbadaddrDlinitfailed Dlbindack Dlunbindreq Dlsubsbindreq Dlpeerbind Dlhierarchicalbind Dlsubsbindack Dltoomany Dlsubsunbindreq Dlenabmultireq Dldisabmultireq Dlnotsupported Dlpromisconreq Dlnotenab Dlpromiscmulti DlpromiscphysDlpromiscsap Dlpromiscoffreq Dlokack Dlerrorack Dlphysaddrreq Dlfactphysaddr Dlcurrphysaddr Dlphysaddrack DlsetphysaddrreqDlphysaddrack Dlphysaddrreq Dlsetphysaddrreq Dlgetstatisticsreq DlgetstatisticsackDlbusy 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 Dlhpinforeq Connection-mode Service PrimitivesConnection-Oriented Dlpi Extensions Dlhpinfoack Dlhpinforeq Dlhpinfoack Connection-mode Service Primitives Connection-mode Service Primitives Dlhpsetacktoreq Dlhpsetacktoreq Dlhpsetptoreq Dlhpsetptoreq Dlhpsetrejtoreq DlhpsetrejtoreqDlhpsetbusytoreq Dlhpsetsendacktoreq Dlhpsetbusytoreq Dlhpsetmaxretriesreq DlhpsetmaxretriesreqDlhpsetsendacktoreq Dlhpsetackthreshreq DLOUTCONPENDING, Dlinconpending Dlhpsetlocalwinreq Dlhpsetremotewinreq Dlhpclearstatsreq Dlhpsetremotewinreq Dlhpsetlocalbusyreq DlhpsetlocalbusyreqDlhpclearstatsreq Dlhpclearlocalbusyreq Dlhpclearlocalbusyreq Dlconnectreq Dlbadqostype DlconnectindDlbadqosparam 112 Dlconnectres 114 Dlconnectcon DlbadtokenDlbadcorr 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 User Reset Dluserreset Dlresetcon Prov Reset DlprovresetDlresetres Resetres Udqos Pend Dludqos DLDISCON9 Pend PendingDlinconpending 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