HP UX 11i v2 Networking Software manual HP’s Dlsap Address Format for Fibre Channel

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Introduction to DLPI

The Data Link Layer

•SNAP SAP format

DA/SA 0xAA SNAP [RIF, up to 18bytes]

HP’s DLSAP Address Format for Fibre Channel

The four possible formats for Fibre Channel are:

•802.2 SAP format

N_Port_Id Process Associator FC_Type DSAP/SSAP

•802.2 SAP without Process Associator format

N_Port_Id FC_Type DSAP/SSAP

•SNAP/SAP format

N_Port_IdProcess AssociatorFC_Type0xAASNAP Info

•SNAP/SAP without Process Associator format

N_Port_Id FC_Type 0xAA SNAP Info

Certain DLS providers require the capability of binding on multiple DLSAP addresses. This can be achieved through subsequent binding of DLSAP addresses. DLPI supports peer and hierarchical binding of DLSAPs. When the user requests peer addressing, the DLSAP speciﬁed in a subsequent bind may be used in lieu of the DLSAP bound in the DL_BIND_REQ. This will allow for a choice to be made between a number of DLSAPs on a stream when determining trafﬁc based on DLSAP values. An example of this would be to specify various ether_type values as DLSAPs. The DL_BIND_REQ, for example, could be issued with an ether_type value of IP, and a subsequent bind could be issued with an ether_type value of ARP. The provider may now multiplex off the ether_type ﬁeld and allow for either IP or ARP trafﬁc to be sent up this stream.

When the DLS user requests hierarchical binding, the subsequent bind will specify a DLSAP that will be used in addition to the DLSAP bound using a DL_BIND_REQ. This will allow additional information to be speciﬁed, that will be used in a header or used for demultiplexing. An example of this would be to use hierarchical bind to specify the Organizational Unique Identiﬁer (OUI) to be used by SNAP.

If a DLS provider supports peer subsequent bind operations, the ﬁrst SAP that is bound is used as the source SAP when there is ambiguity.

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Chapter 1

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Contents Dlpi Programmer’s Guide EditionLegal 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 FilesService Interface Data Link LayerDlpi Connection-mode Service Modes of CommunicationData 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, FddiHP’s Dlsap Address Format for Fibre Channel Dlsap Promiscuous Mode Clariﬁcations Dlpi Services Dlerrorack DlinforeqDlinfoack DlhpppareqDlresetreq DlresetindDlresetres DlresetconLocal Management Services Information Reporting ServiceDlhprawdatareq DlhprawdataindAttach Service Bind ServiceBinding 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 ServiceConnection Handoff 12 Message Flow Successful Connection Establishment13 Message Flow Token Retrieval 16 Message Flow Both Primitives are Destroyed by Provider Data Transfer Service 19 Message Flow Normal Data TransferConnection Release Service 20 Message Flow DLS User-Invoked Connection ReleaseReset Service 23 Message Flow DLS User-Invoked Connection Reset Connectionless-mode Services Connectionless Data TransferRaw-mode Services Error Reporting ServiceXID and Test Service Raw-mode Data Transfer31 Message Flow XID Service XID and Test Packet Handling32 Message Flow Test Service An Example33 Message Flow a Connection-Mode Example Dlpi Primitives Dlpi Primitives Local Management Primitives PPA Initialization/De-initializationDlhpppareq Dlhpppaack Dlhpppaack Dlinforeq MTUDlinfoack Dlcsmacd DltpbDltpr DlmetroDlchar DlctcaDlfddi DlotherDlhprawdls DlacldlsDlunknown DLSTYLE1 DLSTYLE2Dlaccess DlattachreqDlbadppa Dldetachreq DloutstateDlsyserr Dlbindreq Dlbadaddr DlinitfailedDlnotinit Dlbindack Dlunbindreq Dlsubsbindreq Dlpeerbind DlhierarchicalbindDlsubsbindack DltoomanyDlsubsunbindreq Dlenabmultireq Dldisabmultireq DlnotsupportedDlpromisconreq DlnotenabDlpromiscphys DlpromiscsapDlpromiscmulti Dlpromiscoffreq Dlokack Dlerrorack Dlphysaddrreq Dlfactphysaddr Dlcurrphysaddr Dlphysaddrack DlsetphysaddrreqDlphysaddrack DlphysaddrreqDlsetphysaddrreq Dlgetstatisticsreq DlgetstatisticsackDlbusy DlgetstatisticsreqDlhpmulticastlistreq DlgetstatisticsackDlhpmulticastlistack Dlhpmulticastlistack Connectionless-mode Service Primitives DlunitdatareqDlbaddata Dlunitdataind Dluderrorind Message is valid in state Dlidle Raw Mode Service Primitives DlhprawdatareqDlhprawdataind DlbadprimRaw Mode Service Primitives Connection-mode Service Primitives Connection-Oriented Dlpi ExtensionsDlhpinforeq Dlhpinfoack DlhpinforeqDlhpinfoack Connection-mode Service Primitives Connection-mode Service Primitives Dlhpsetacktoreq DlhpsetacktoreqDlhpsetptoreq DlhpsetptoreqDlhpsetrejtoreq DlhpsetbusytoreqDlhpsetrejtoreq Dlhpsetsendacktoreq DlhpsetbusytoreqDlhpsetmaxretriesreq DlhpsetsendacktoreqDlhpsetmaxretriesreq Dlhpsetackthreshreq DLOUTCONPENDING, DlinconpendingDlhpsetlocalwinreq Dlhpsetremotewinreq Dlhpclearstatsreq DlhpsetremotewinreqDlhpsetlocalbusyreq DlhpclearstatsreqDlhpsetlocalbusyreq Dlhpclearlocalbusyreq DlhpclearlocalbusyreqDlconnectreq Dlconnectind DlbadqosparamDlbadqostype 112 Dlconnectres 114 Dlconnectcon DlbadtokenDlbadcorr Dlpending116 Dltokenreq DltokenackDldatareq Dldataind Dldisconnectreq120 Dldisconnectind Dlresetreq Dlresetind Dlresetres Dlresetcon 126 Primitives to Handle XID and Test Operations DltestreqDltestind DltestautoChapter 129 Dltestres Dltestcon Dlxidreq Dlxidind Dlxidauto134 Dlxidres DlpollfinalDlxidcon Chapter 137 Dlpi States User Reset Dluserreset Dlresetcon Prov Reset DlprovresetDlresetres Resetres Udqos Pend DludqosDLDISCON9 Pend PendingDlinconpending DLDISCON11Chapter 141 142 Sample Programs Connection Mode LongareasizeAppendix 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 SAPAppendix 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 establishment174 Glossary Index

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