OSI/TS SCF Reference Manual

OSI/TS SCF Commands
OSI/TS SCF Reference Manual—424832-001
2-18
ADD SU Command
EXTENDEDFORMAT
specifies whether the credit and sequence numbers of TPDUs should be in extended
format (ON) or normal format (OFF). This attribute is valid only when the transport
protocol class is 2, 3, or 4.
Value: ON | OFF
Default: OFF
INACTIVETIMEOUT
specifies that if no TPDU is received within the specified time, the transport
connection is aborted. This attribute is valid only when the transport protocol class
is 4.
Value: 1.000 through 500.000 (1 through 500 seconds)
Default: 30.000 (30 seconds)
IPNULLLAYER
enables or disables the use of the null (inactive subset) of the internet protocol in the
Network layer. This attribute is valid only when the transport protocol class is 4.
This attribute is used only for LAN networks.
Value: ON | OFF
Default: OFF
IPX25SNDCF
specifies whether the subnetwork dependent convergence facility (SNDCF) is used.
This attribute is used only for X.25 networks.
Value: ON | OFF
Default: OFF
L4WINDOW
specifies the maximum credit allocation to the remote transport entity. This is the
maximum number of TPDUs that can be sent by the remote transport entity without
acknowledgment. This attribute is valid only when the transport protocol class is 1,
2, 3, or 4, but see below, because this attribute performs differently when the
transport protocol class is 1.
Value: 0 through 15
Default: 4
When the transport protocol class is 1, L4WINDOW must be 0 or 1 (a value of 0 is
interpreted as 1). For transport class 1, the use of values 2 through 15 could lead to
a deadlock situation when the sending transport entity waits for the acknowledgment
of each DT-TPDU before it sends the next one.