Z39.50 Negotiation Record NegotiateEsSizes

December 1998
The Object Identifier for this definition is: 1.2.840.10003.15.2

This is a definition of a negotiation record as described in the Model for Z39.50 Negotiation During Initialization. This definition conforms to that model; the rules listed in the model, particularly those rules listed in section 3, apply to this definition.


This negotiation record may be used to negotiate values to be in effect during the z-association for the following three parameters: The origin may include a negotiation record of this type within the Init Request to propose values for these parameters, and if so, the target may include a negotiation record of this type to supply values for these parameters, and if so, the values supplied by the target are in effect for the z-association.

Negotiation of these parameters is not a pre-requisite for extended services. It is envisaged that it will be employed when the origin has specific limits that it needs to convey to the target. When size limitations have not been negotiated, the target can use diagnostics 1048, 1049, 1050, 1052 and 1053 to indicate failures due to size errors, using addInfo to indicate maximum acceptable sizes.

All three parameters are optional. When a parameter is omitted by the origin, the origin is not proposing to negotiate a value for that parameter (though the target may nevertheless supply a value for that parameter in the response). When a parameter is omitted by the target, no negotiation has occurred for that parameter.


The ASN.1 for this definition follows.
NegotiationRecordDefinition-NegotiateEsSizes
{Z39-50-negotiationRecordDefinition NegotiateEsSizes (2)} 
DEFINITIONS ::= BEGIN

NegotiateEsSizes ::= SEQUENCE{
	maxMsgSize                       [1] IMPLICIT INTEGER OPTIONAL,
	maxTaskPackageSize               [2] IMPLICIT INTEGER OPTIONAL,
	maxRecordSize	                 [3] IMPLICIT INTEGER OPTIONAL}

END