3.2.2.5.8 OUT_R1/A10 RTS PDU
A client implementation MUST NOT accept the OUT_R1/A10 RTS PDU in any state of the virtual OUT channel other than Opened_A10W. If it is received in any other state, the client MUST treat it as a protocol error as specified in section 3.2.2.5.11.
If this RTS PDU is received in Opened_A10W, the client implementation MUST perform the following actions in the sequence given:
Set the successor OUT channel as the default OUT channel.
Send OUT_R1/A11 RTS PDU on the successor OUT channel.
Transition the virtual OUT channel state machine to opened state.
Implementations MUST ignore any subsequent bytes received on the predecessor channel.
Close the predecessor OUT channel.