OSI/TS SCF Reference Manual

OSI/TS SCF Commands
OSI/TS SCF Reference Manual—424832-001
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Detailed Display
DeleteTime
shows whether the SU is dynamic (0), or static (-1).
T-Expedited
shows whether the transport expedited data transfer service is supported.
TPDU Format
shows whether the credit and sequence numbers of TPDUs should be in
EXTENDED format (on) or NORMAL format (off).
TPDU Size
shows, in octets, the maximum length of a TPDU.
Receive Credit
shows the number of credits granted to the remote transport entity for the current
transport connection (only for connections using transport class 3 or 4 - and also
class 2, unless the use of flow control was waived during connection establishment).
These credits are conveyed in the credit field of AK-APDUs sent to the remote
transport entity. Receive Credit can fluctuate but will never exceed the configured
L4WINDOW size.
The value of this field will decrease if the TSP process cannot handle the flow of
incoming data. A value of zero is an indication that the TSP process is not ready to
receive any data for this SU. Once the flow of data can be kept up with, the TSP
process can gradually increase the value of this data.
If there is no connection for this SU, this field will display the value of
L4WINDOW.
Sending Credit
shows the number of DT-TPDUs the TSP process can send for the current transport
connection. This value will be equal to, or less than, the Receive Credit value
received from the remote in the last AK-TPDU.
Send Credit shows the value taken from the CDT field of the most recently received
CC, AK, or RJ TPDU; its value therefore indicates the size of the flow control
window as granted by the remote end; it does not, however, tell how much of the
flow control window is being used by the OSI/TS process.
If there is no connection for this SU, this field will display the value zero. When a
connection is established for an SU, a value of zero is an indication that the remote
transport entity is not ready to receive any data from this SU.
Send Credit applies only for connections using transport classes 2, 3, or 4.