Session in Serviceability XML APIs

Version 1
    This document was generated from CDN thread

    Created by: daphne man on 28-02-2012 11:19:39 PM
    There is Session ID existing in Serviceability API. It's okay that session id is required in PerfmonPort Service, such as perfmonOpenSession, perfmonAddCounter. Session id helps receive session-based data.
    But, what is the purpose of including Session ID in soap header for RisPort SOAP Service(selectCmDevice)?  I can receive response without including session ID.

    <tns:AstHeader id="id1">
    <SessionId xsi:type="xsd:string">SessionId</SessionId>

    Thanks in advance.

    Subject: RE: Session in Serviceability XML APIs
    Replied by: David Staudt on 19-03-2012 04:53:28 PM
    As you say, the session ID is optional (and has no effect) for Risport queries like selectCmDevice