Control Requests |
 |
All control writes to this protocol share a common format.
The first four bytes are defined as a header
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Control Code | Control Length |
Packet Length (0) |
- Control Code
Defines the action to be taken by this request.
- Control Length
The byte length of the data for this control request. This
data immediately follows the header.
- Packet Length
Some protocols allow packet data (data to be transmitted
over the wire) to be passed to a control write following the control
request data. For this protocol, these two bytes must be zero because
the protocol does not allow packet data within a control write.
This protocol supports the following Control Code:
- 5 CW_STATS
Send IO_STATS status message
This control write triggers the protocol to send an IO_STATS status message. For the format of this message,
see the section on “Status and Error Messages”. The control length
is zero.
Note that the Non-E1/T1 version of this protocol must have
Control Write processing enabled, in order to be able to process
Control Write requests. See the “Terminal Definitions” section
of for details.
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