SNAX/HLS Configuration and Control Manual

Objects and Attributes
Using the HLSRDT Utility
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PRI-CHAIN-PROTOCOL
This BIND attribute has the possible keywords NONE, EXCEPTION, DEFINITE, or ANY.
The default is EXCEPTION.
PRI-CHAIN-PROTOCOL specifies what type of response chains will be issued by the
primary half session.
The NONE option allows datagram service: messages are sent without
acknowledgement of success or failure. This provides minimum message overhead,
but depends upon higher-level, application-oriented validation techniques.
The EXCEPTION option allows for notification of failures with the implication that no
news is good news. SEND-DATA verbs complete as soon as the data leaves the
originating node. The application program must be able to handle reject notices that
arrive later. The NOTIFY-IND option on SEND-DATA or
SEND-AND-RECEIVE-DATA verbs is also unavailable.
The DEFINITE option solicits explicit confirmation on each and every message sent. If
immediate request mode is also being used, the SEND-DATA verb does not complete
until the promised response is received from the partner. Although this is the simplest
method of synchronizing requests and responses, it is the method with the highest
overhead, since a response must flow for every message.
The ANY option allows the application program to select either definite or exception
responses. SNAX/HLS makes this decision based upon the NOTIFY-IND option on
the SEND-DATA or SEND-AND-RECEIVE-DATA verb.
PRI-CHAIN-USE
This BIND attribute has the possible keywords SINGLE-RU or MULTIPLE-RU. The
default is MULTIPLE-RU.
If this field is specified as SINGLE-RU, the primary sends single element chains. The
size of messages sent by the primary is limited to the PRI-MAX-RU value and
SEND-DATA message sizes must be no larger than this size.
If this field is specified as MULTIPLE-RU, PRI-CHAIN-USE specifies that the primary
half session can send multi-element chains.
PRI-COMPRESSION-IND
This BIND attribute has the value type yesno . The default value is NO.
PRI-COMPRESSION-IND specifies whether data compression will be used in
messages sent by the primary half session. The proper setting of this option depends
upon the application. Typically, this is set to YES for applications involving
LU-SESSION-TYPE 1 (RJE) sessions. This field is not currently interpreted by
SNAX/HLS.