3.2.5.5.3 CONN/A2 RTS PDU

A server implementation MUST NOT accept the CONN/A2 RTS PDU in any state other than Open_Start or A2W. If this condition is not met, the server MUST treat this PDU as a protocol error as specified in section 3.2.5.5.13.

A server implementation MUST extract the virtual connection cookie from the CONN/A2 RTS PDU and search for this cookie value in the virtual connection cookie table. If found, the virtual connection is called the existing virtual connection. In such a case, the server implementation MUST verify that the existing virtual connection is in state A2W. If it is, the server implementation MUST continue execution on the state machine of the existing virtual connection and MUST continue processing this PDU as specified in section 3.2.5.5.3.2. If this condition is not met, the server MUST treat this PDU as a protocol error, as specified in section 3.2.5.5.13.

If the server implementation fails to find a virtual connection in the virtual connection cookie table with the same cookie as the virtual connection cookie from this PDU, the server MUST continue processing as specified in section 3.2.5.5.3.1 of this document. In such a case, the server implementation MUST verify that the new virtual connection is in state Open_Start. If this condition is met, the server MUST treat this PDU as a protocol error, as specified in section 3.2.5.5.13

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