ANSI-INCITS-218:2000-R2005 pdf download. Information Technology一High-Performance Parallel Interface一Encapsulation of ISO/IEC 8802-2(IEEE Std 802.2)Logical Link Control Protocol Data Units(HIPPI-LE).
ANSI-INCITS-218 specifies a common method for encapsulating ISO/IEC 8802-
2 (IEEE Std 802.2) Logical Link Control Protocol
Data Units (PDU) on HIPPI.
Characteristics of HIPPI-LE include:
— Encapsulation of arbitrary Protocol Data Units that conform to ISO/IEC 8802-2 (IEEE Std 802.2) Logical Link Control;
— Provision for 48-bit source and destination addresses conforming to IEEE 802.la;
— Provision for eight forwarding classes to distinguish, for example, among ordinary data PDUs, PDUs for services that require bandwidth guarantees such as packet video, etc.
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 investigate the possibility of applying the most recent editions of the standards listed below.
Copies of the following documents can be obtained 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.
ANSI X3.210-1992 (and supplement ANSI X3.21 0-1 992/AM 1-1996), High-Performance Parallel Interface – Framing Protocol (HIPPI-FP)
ANSI X3.222-1 997, High-Performance Parallel Inter face – Physical Switch Control (HIPPI-SC)
ANSI/IEEE 802.la-1 990, Local Area Network and Metropolitan Area Network: Overview and architecture
ISO/IEC 8802-2:1998 (ANSI/IEEE 802.2-1998), Inform at ion Processing Systems – Local Area Networks – Part 2: Logical Link Control
3 Definitions and conventions
3.1 Definitions
For the purposes of this standard, the following definitions apply.
3.1.1 802.2 LLC PDU: A PDU formatted according to ISO/lEG 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 implemented, 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 between 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 supervisory 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).ANSI-INCITS-218 pdf download