OSI/TS SCF Reference Manual

OSI/TS SCF Commands
OSI/TS SCF Reference Manual—424832-001
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Considerations for the ADD Command
SU Object
•
TSP checks the ranges of the attribute values but does not check the value of one
attribute against another. The values that are actually used are determined at
connection-establishment time. Use the STATUS command to see the attribute
values used during a connection.
•
SU objects are placed in the STOPPED state by the ADD command. They are
placed in the STARTED state by issuing a START command.
•
The LIKE option, if specified, must be entered before any attribute-specs.
•
The transport protocol class and alternate transport protocol class are determined by
the ALTCLASS, CLASS, MULTIPLEX, and NETTYPE attributes. The following
table defines the valid combinations of values for these attributes
•
Several of the ADD SU attributes have a corresponding attribute (of the same name)
in the ALTER SERVICE #L3 or #L4 command.
When an SU is added, attribute values that are not specified, will be assigned the
corresponding SERVICE attribute value.
When an SU is added, attribute values that are specified, will override the
corresponding SERVICE attribute value.
Once an SU is added, changing the corresponding SERVICE attributes with ALTER
SERVICE has no effect on the existing SU.
L4 ALTER SERVICE #L3 or #L4 values that are not specified may be defaulted to a
corresponding value by the underlying subsystem (X25AM or TLAM (for D-series,
or PAM subsystems for G06 and above releases)).
•
Table 2-4, OSI/TS Protocol Selection for X.25 Wide Area Network and
Table 2-5, OSI/TS Protocol Selection for Local Area Networks show how to select
the correct combination of attributes to obtain the desired protocol. The
combination of the SU attributes NSPDEVICE, CLASS, X25DESTADDR,
IPNULLLAYER, IPX25SNDCF, LOCALNSAP, REMOTENSAP,
LANLOCALSNPA, and LANREMOTESNPA and the #L3 SERVICE attribute
ESISENABLE determines the protocol stack to be used below the Transport Layer.
ALTCLASS CLASS MULTIPLEX NETTYPE
not applicable 0 OFF A
0 or 1 1 OFF B
0 or 2 2 ON A
0 or 2 3 ON or OFF A
0 or 1 or 2 or 3 3 ON B
0 or 1 or 2 or 3 or 4 4 ON or OFF C