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3.2.1.5.1.2 FlowControlAck RTS PDU

  • Article

All senders of RTS PDUs process flow control acknowledgment RTS PDUs as specified in section 2.2.4.50 identically. An implementation MUST execute the following sequence of steps to process a FlowControlAck RTS PDU in this order:

  • A FlowControlAck RTS PDU is received on some channel.

  • The ChannelCookie field from the FlowControlAck RTS command is compared against the channel cookies for all channels belonging to this virtual connection, and a matching channel is selected. If no matching channel can be found, an implementation of this protocol MUST discard the PDU and MUST NOT do any further processing for this PDU.

  • Recalculate its local copy of Sender AvailableWindow using the following formula:

    Sender AvailableWindow = Sender AvailableWindow_from_ack - (BytesSent - BytesReceived_from_ack).

    Where:

    Sender AvailableWindow_from_ack is the Available Window field in FlowControl Acknowledgement Structure (section 2.2.3.4) in the PDU received.

    BytesReceived_from_ack is the Bytes Received field in the Flow Control Acknowledgement structure specified.

  • Dequeue any RPC PDUs possible as specified in section 3.2.1.4.1.3.