2.2.3.4 Flow Control Acknowledgment

The Flow Control Acknowledgment data structure is embedded in a packet performing some sort of flow control acknowledgment for traffic received. The encoding of this data structure is as follows.


0


1


2


3


4


5


6


7


8


9

1
0


1


2


3


4


5


6


7


8


9

2
0


1


2


3


4


5


6


7


8


9

3
0


1

Bytes Received

Available Window

ChannelCookie (16 bytes)

...

...

Bytes Received (4 bytes): The number of bytes received at the time the flow control acknowledgment was issued. For a definition of the processing rules related to flow control acknowledgment, see section 3.2.1.1. This value MUST be in the inclusive range of 0 to the channel lifetime denoted by the channel cookie field.

Available Window (4 bytes): The number of bytes available in the ReceiveWindow of the originator of this PDU.

ChannelCookie (16 bytes): An RTS cookie that uniquely identifies the channel for which the traffic received is being acknowledged (see section 2.2.3.1).