IBM GC20-1869-2 SNA Introduction to Sessions Between Logical Units Dec79 free download

File name GC20-1869-2_SNA_Introduction_to_Sessions_Between_Logical_Units_Dec79.pdf

GC20-1869-2 Systems Network Architecture - Introduction to Sessions between Systems Logical Units Logical Vnits (LVs) are the ports through which users communicate across an SNA network. The communication path through the network is represented by an LV to LV (LV-LV) session, and each user is represented by a logical unit. This book discusses the use oflogical units to support application-to-application and application-to-terminal communication. The types of LV-LV sessions are defined and the characteristics of each type are discussed. The type number that is assigned to an LV-LV session identifies the combination of SNA functions that may be used. A given LV supports only sessions that draw from those allowable functions. A product is thus characterized by the LV-LV session type (or types) that it supports. For a given LV-LV session, the session type and its associated proftles or specified in the BIND command when the session is established. The session type selected for the LV-LV session depends on the end-user's need. The type must be one that is supported by the implementation. - - . -- .. -- -. . . - - -- - - ---- - - - - ---- --_~-- -~- -~-y"" Third Edition (December 1979) References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available outside the United States. Requests for copies of IBM publications should be made to your IBM representative or to the IBM branch office serving your locality. A form for readers' comments has been provided at the back of this publication. If this form has been removed, address comments concerning the contents of this publication to IBM Corporation,Technical Publications, Dept. 824, 1133 Westchester Avenue, White Plains, New York 10604. IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation whatever. You may, of course, continue to use the information you supply.