ANSI INCITS-218:2000 (R2005) pdf free download – for Information Technology – High-Performance Parallel Interface – Encapsulation of ISO/IEC 8802-2 (IEEE Std 802.2)
2 Normative references
The following standards contain provisions which, through reference in the text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investi- gate the possibility of applying the most recent editions of the standards listed below. Copies of the following documents can be ob- tained from ANSI: Approved ANSI standards, approved and draft international and regional standards (ISO, IEC, CEN/CENELEC, ITUT) and approved foreign standards (including BSI, JIS, and DIN). For further information, contact ANSI Customer Service Department at 212-642-4900 (phone), 212-302-1286 (fax), or via the World Wide Web at http://www.ansi.org. Additional availability contact information is provided below as needed.
3.1 Definitions For the purposes of this standard, the following definitions apply.
3.1.1 802.2 LLC PDU: A PDU formatted accord- ing to ISO/IEC 8802-2 (IEEE Std 802.2) Logical Link Control.
3.1.2 HIPPI-LE PDU: A PDU that includes a HIPPI-LE header and an 802.2 LLC PDU and is formatted according to clause 6.
3.1.3 optional: A term referring to features that are not required by the standard. However, if any optional feature defined by the standard is imple- mented, it shall be implemented according to the standard.
3.1.4 protocol data unit (PDU): A formatted data set that is a logical unit of interchange be- tween entities.
3.1.5 service data unit (SDU): A formatted data set that includes a PDU and optional infoRmation for the convenience of an implementer.
3.1.6 station management (SMT): The supervi- sory entity that monitors and controls HIPPI.
3.1.7 Switch Address: A value in the switch hardware domain which selects the route or end point of a HIPPI connection. The range and format depend on switch hardware. HIPPI-SC specifies two formats: Logical Address (12 bits) and Source Route (24 bits).
3.2 Editorial conventions
In this standard, certain terms that are proper names of service primitives, or similar terms are printed in uppercase to avoid possible confusion with other uses of the same words (e.g., TRANS- FER). Any lowercase uses of these words have the normal technical English meaning. The first letter of each word of service parame- ters, service primitive types, and similar terms is capitalized (e.g., Destination_Address, Status, Request). Any lowercase uses of these words have the normal technical English meaning.
4 HIPPI-LE
services to 802.2 LLC This clause specifies the services provided by HIPPI-LE. The intent is to allow 802.2 LLC to op- erate correctly with HIPPI-LE. How many of the services described in this clause are chosen for a given implementation is up to the implementer; however, the set of HIPPI-LE services supplied shall be sufficient to satisfy the higher level proto- col(s) being used. Service parameters are also optional and additional parameters not shown may be used as necessary. The services as de- fined in this standard do not imply any particular implementation, or any interface. In this standard the 802.2 LLC and station man- agement protocol (SMT) are service users, and the HIPPI-LE is the service provider to the 802.2 LLC and SMT. The primitives to 802.2 LLC are prefixed with LE_ and the SMT primitives are pre- fixed with LESM_.