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3.2.5.2.1 Processing a Participant-Created PDU

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The receiver of the Participant-Created PDU (OD_PARTICIPANT_CREATED) (section 2.2.4.1) MUST verify the common header for consistency (section 3.1.5.1). If the PDU size is not long enough to contain all the fields in the message, the connection SHOULD be terminated.<17>

After the header is validated, the receiver MUST validate the Name field according to the rules specified in section 3.1.5.2.

If the IS_PARTICIPANT flag is set, the recipient SHOULD remember this information because it indicates that the message refers to the participant itself.<18>

If the IS_PARTICIPANT flag is not set, this indicates that the message refers to a participant other than the recipient of the message.

If the GroupId field is not zero, the recipient SHOULD use this information to identify the group to which the user belongs.<19>

If the receiver wants to use the Participant list facilities of this protocol, it SHOULD process the information according to section 3.1.5.3.