OSI/TS Management Programming Manual

ALTER SU Command
Commands and Responses
5–68 056786 Tandem Computers Incorporated
ZCOM-TKN-OBJNAME
is the name of a subdevice whose attributes were to be altered.
ZSPI-TKN-RETCODE
indicates whether or not the command was successful. If the command failed, this
token supplies the reason for the failure. Its use is described further in the
Distributed Systems Management (DSM) Programming Manual.
ZSPI-TKN-ERRLIST and ZSPI-TKN-ENDLIST
enclose a standard SPI error list, as described in the Distributed Systems
Management (DSM) Programming Manual.
ZSPI-TKN-CONTEXT
used in returning multiple response messages, is described in the Distributed
Systems Management (DSM) Programming Manual.
Operational Notes
For the ALTER SU command to be successful, the specified subdevices must be in
the STOPPED state.
The combination of the SU attributes ZNSP-DEV, ZCLASS, ZX25DESTADDR,
ZIP-X25-SNDCF, ZIP-NULL-LAYER, ZLOC-NSAP, ZRMT-NSAP, ZLAN-
LOC-SNPA, and ZLAN-RMT-SNPA and the Layer 3 SERVICE attribute
ZESIS-ENABLE determines the protocol stack below the Transport Layer.
Tables 5-4 and 5-5, in the description of the ADD SU command, show how to
select the correct combination of attributes to obtain the desired protocol.
If a subdevice is configured to operate in conjunction with the ES-IS protocol at the
Network Layer, it should be aborted before you attempt to alter the NSAP or
SNPA addresses.