The Create Controller Description (SNA Host) (CRTCTLHOST) command creates a controller description for a Systems Network Architecture (SNA) Host controller. For more information about using this command is in the Communications Configuration book, SC41-5401.

Parameters

Keyword	Description	Choices	Notes
CTLD	Controller description	Name	Required, Positional 1
LINKTYPE	Link type	*DLUR, *FR, *LAN, *SDLC, *X25	Required, Positional 2
ONLINE	Online at IPL	*YES, *NO	Optional
SWITCHED	Switched connection	*NO, *YES	Optional
SHM	Short hold mode	*NO, *YES	Optional
SNBU	Switched network backup	*NO, *YES	Optional
APPN	APPN-capable	*YES, *NO	Optional
LINE	Attached nonswitched line	Name	Optional
SWTLINLST	Switched line list	Values (up to 64 repetitions): Name	Optional
MAXFRAME	Maximum frame size	265-16393, 256, 265, 512, 521, 1024, 1033, 1994, 2048, 2057, 4060, 4096, 8156, 16393, *LINKTYPE	Optional
RMTNETID	Remote network identifier	Communications name, *NETATR, *NONE, *ANY	Optional
RMTCPNAME	Remote control point	Communications name, *ANY	Optional
ADJLNKSTN	Adjacent link station	Communications name, *NONE, *ANY	Optional
SSCPID	SSCP identifier	050000000000-05FFFFFFFFFF	Optional
LCLEXCHID	Local exchange identifier	05600000-056FFFFF, *LIND	Optional
INLCNN	Initial connection	*DIAL, *ANS	Optional
DIALINIT	Dial initiation	*LINKTYPE, *IMMED, *DELAY	Optional
CNNNBR	Connection number	Character value, *DC, *ANY	Optional
ANSNBR	Answer number	*CNNNBR, *ANY	Optional
CNNLSTOUT	Outgoing connection list	Name	Optional
CNNLSTOUTE	Connection list entry	Name	Optional
STNADR	Station address	01-FE	Optional
ADPTADR	LAN remote adapter address	000000000001-FFFFFFFFFFFF	Optional
NETLVL	X.25 network level	1980, 1984, 1988	Optional
LINKPCL	X.25 link level protocol	*QLLC, *ELLC	Optional
LGLCHLID	X.25 logical channel ID	Character value	Optional
CNNPWD	X.25 connection password	Character value, X''	Optional
CPSSN	APPN CP session support	*YES, *NO	Optional
NODETYPE	Remote APPN node type	*ENDNODE, *LENNODE, *NETNODE, *CALC	Optional
BEXROLE	Branch extender role	*NETNODE, *ENDNODE	Optional
HPR	APPN/HPR capable	*YES, *NO	Optional
HPRPTHSWT	HPR path switching	*NO, *YES	Optional
TMSGRPNBR	APPN transmission group number	1-20, 1, *CALC	Optional
MINSWTSTS	APPN minimum switched status	*VRYONPND, *VRYON	Optional
AUTOCRTDEV	Autocreate device	*ALL, *DEVINIT, *NONE	Optional
AUTODLTDEV	Autodelete device	1-10000, 1440, *NO	Optional
USRDFN1	User-defined 1	0-255, *LIND	Optional
USRDFN2	User-defined 2	0-255, *LIND	Optional
USRDFN3	User-defined 3	0-255, *LIND	Optional
RECONTACT	Recontact on vary off	*YES, *NO	Optional
TEXT	Text 'description'	Character value, *BLANK	Optional
PRIDLUS	Primary DLUS name	Single values: *NONE Other values: Element list	Optional
	Element 1: Control point name	Communications name
	Element 2: Network identifier	Communications name, *NETATR
BKUDLUS	Backup DLUS name	Single values: *NONE Other values: Element list	Optional
	Element 1: Control point name	Communications name
	Element 2: Network identifier	Communications name, *NETATR
DEPPUNAME	Dependent PU name	Communications name, *NONE	Optional
ACTTMR	Activation timer	30-2550, 170	Optional
RECNNTMR	Dsc/reconnect timer (T309)	1-2550, 170	Optional
DEV	Attached devices	Values (up to 254 repetitions): Name	Optional
CODE	Character code	*EBCDIC, *ASCII	Optional
IDLCWDWSIZ	IDLC window size	1-31, *LIND	Optional
IDLCFRMRTY	IDLC frame retry	0-100, *LIND	Optional
IDLCRSPTMR	IDLC response timer	10-100, *LIND	Optional
IDLCCNNRTY	IDLC connect retry	1-100, *LIND, *NOMAX	Optional
PREDIALDLY	Predial delay	0-254, 6	Optional
REDIALDLY	Redial delay	0-254, 120	Optional
DIALRTY	Dial retry	0-254, 2	Optional
SWTDSC	Switched disconnect	*NO, *YES	Optional
DSCTMR	Disconnect timer	Element list	Optional
	Element 1: Minimum connect timer	0-65535, 170
	Element 2: Disconnection delay timer	0-65535, 30
DSAP	LAN DSAP	04, 08, 0C, 10, 14, 18, 1C, 20, 24, 28, 2C, 30, 34, 38, 3C, 40, 44, 48, 4C, 50, 54, 58, 5C, 60, 64, 68, 6C, 70, 74, 78, 7C, 80, 84, 88, 8C, 90, 94, 98, 9C	Optional
SSAP	LAN SSAP	04, 08, 0C, 10, 14, 18, 1C, 20, 24, 28, 2C, 30, 34, 38, 3C, 40, 44, 48, 4C, 50, 54, 58, 5C, 60, 64, 68, 6C, 70, 74, 78, 7C, 80, 84, 88, 8C, 90, 94, 98, 9C	Optional
LANFRMRTY	LAN frame retry	0-254, *CALC	Optional
LANCNNRTY	LAN connection retry	0-254, *CALC	Optional
LANRSPTMR	LAN response timer	0-254, *CALC	Optional
LANCNNTMR	LAN connection timer	0-254, *CALC	Optional
LANACKTMR	LAN acknowledgement timer	0-254, *CALC	Optional
LANINACTMR	LAN inactivity timer	0-255, *CALC	Optional
LANACKFRQ	LAN acknowledgement frequency	0-127, *CALC	Optional
LANMAXOUT	LAN max outstanding frames	1-127, *CALC	Optional
LANACCPTY	LAN access priority	0-3, *CALC	Optional
LANWDWSTP	LAN window step	1-127, *NONE	Optional
SWTLINSLCT	X.25 switched line selection	*FIRST, *CALC	Optional
DFTPKTSIZE	X.25 default packet size	Element list	Optional
	Element 1: Transmit value	*LIND, 64, 128, 256, 512, 1024, 2048, 4096
	Element 2: Receive value	*LIND, *TRANSMIT, 64, 128, 256, 512, 1024, 2048, 4096
DFTWDWSIZE	X.25 default window size	Element list	Optional
	Element 1: Transmit value	1-15, *LIND
	Element 2: Receive value	1-15, *LIND, *TRANSMIT
USRGRPID	X.25 user group identifier	Character value	Optional
RVSCRG	X.25 reverse charging	*NONE, *REQUEST, *ACCEPT, *BOTH	Optional
X25FRMRTY	X.25 frame retry	0-21, 7	Optional
X25RSPTMR	X.25 response timer	1-2550, 300	Optional
X25ACKTMR	X.25 acknowledgement timer	0-2550, 20	Optional
X25INACTMR	X.25 inactivity timer	1-2550, 1050	Optional
USRFCL	User facilities	Character value	Optional
CMNRCYLMT	Recovery limits	Single values: *SYSVAL Other values: Element list	Optional
	Element 1: Count limit	0-99, 2
	Element 2: Time interval	0-120, 5
MSGQ	Message queue	Single values: *SYSVAL, *SYSOPR Other values: Qualified object name	Optional
	Qualifier 1: Message queue	Name
	Qualifier 2: Library	Name
AUT	Authority	Name, *CHANGE, *ALL, *USE, *EXCLUDE, *LIBCRTAUT	Optional

Top

Controller description (CTLD)

This is a required parameter.

Specifies the name of the controller description.

Link type (LINKTYPE)

Specifies the type of line to which this controller is attached.

This is a required parameter.

*FR

This controller is attached to a frame relay line.

*LAN

This controller is attached to a DDI, Ethernet, or token-ring local area network (LAN) line.

*SDLC

This controller is attached to a synchronous data link control (SDLC) line.

*X25

This controller is attached to an X.25 line.

*DLUR

This controller is used for Dependent LU Requester (DLUR) functions and has no line attached.

Online at IPL (ONLINE)

Specifies whether this object is automatically varied on at initial program load (IPL).

*YES

The controller is automatically varied on at IPL.

*NO

The controller is not automatically varied on at IPL.

Switched connection (SWITCHED)

Specifies whether this controller is attached to a switched line, a token-ring network, Ethernet LAN, or an X.25 switched virtual circuit (SVC). *NO must be specified for APPC controllers attached to a TDLC line.

*NO

This controller is attached to a nonswitched line. Specify this value for controllers attaching to an X.25 permanent virtual circuit (PVC).

*YES

This controller is attached to a switched line. Specify this value for controllers attached to an X.25 switched virtual circuit (SVC). Also specify this value for controllers attached to a local area network.

Note: If LINKTYPE is *LAN, the SWITCHED parameter value must be *YES or must not be specified.

Short hold mode (SHM)

Specifies whether this controller is to be used for X.21 short hold mode. To specify *YES, you must also specify *SDLC for the Link type (LINKTYPE) parameter, and *YES for the Switched connection (SWITCHED) parameter.

*NO

This controller is not used for X.21 short hold mode.

*YES

This controller is used for X.21 short hold mode.

Switched network backup (SNBU)

Specifies whether the remote system modem has the switched network backup (SNBU) feature. The backup feature is used to bypass a broken nonswitched (leased line) connection by establishing a switched connection. To activate SNBU, you must change the controller description of the modem from nonswitched to switched by specifying *YES for the Activate swt network backup (ACTSNBU) parameter.

Note: If the modem model you are using is an IBM 386x, 586x, or 786x, you should not change the controller description. Instead, manually switch the modem to the unswitched mode, and manually dial the connection.

Both the local and remote modems must support the SNBU feature to perform a valid activation.

*NO

The remote system modem does not have the SNBU feature.

*YES

The remote system modem has the SNBU feature.

APPN-capable (APPN)

Specifies whether the local system uses advanced peer-to-peer networking (APPN) functions when communicating with this controller. *YES must be specified for APPC controllers attached to a TDLC line.

*YES

This controller is for APPN.

*NO

This controller is not for APPN.

Attached nonswitched line (LINE)

Specifies the name of the nonswitched lines to which this controller is attached. The line description must already exist.

Note: The associated line must be varied off before this command is entered. Specify this parameter for controllers attaching to an X.25 permanent virtual circuit (PVC).

Switched line list (SWTLINLST)

Specifies the names of the switched lines to which this controller attaches. The line descriptions must already exist. Up to 64 switched line names can be specified.

*switched-line-name

Specify the names of up to 64 lines that are connected to this controller. The same line name can be used more than once. For each line name specified, a line description by that name must already exist.

Maximum frame size (MAXFRAME)

Specifies the maximum frame (path information unit (PIU)) size the controller can send or receive. This value is used to calculate the request unit (RU) sizes. Since the maximum PIU size that the controller can send or receive is negotiated at exchange identifier time, the maximum PIU size used at run time may be different. This value matches the corresponding value on the host system.

*LINKTYPE

The following values are used for the various types:

• *FR - 1590
• *IDLC - 2048
• *LAN - 16393
• *SDLC - 521
• *X25 - 1024

maximum-frame-size

Specify the frame size for the controller. The frame size that can be used depends on the type of line being used. Valid frame sizes for each line type are: For *FR, specify a value from 265 through 8182. For *IDLC, specify a value ranging from 265 through 8196. For *LAN, specify a value from 265 through 16393 (265 through 4444 for DDI LANs). For *SDLC, specify 265, 521, 1033, or 2057. For *X25, specify 256, 265, 512, 521, 1024, 1033, 2048, or 4096.

Remote network identifier (RMTNETID)

Specifies the NAME of the remote network in which the adjacent control point resides.

*NETATR

The LCLNETID value specified in the system network attributes is used.

*NONE

No remote network identifier (ID) is used.

*ANY

The system determines which remote network identifier is used.

remote-network-identifier

Specify the remote network identifier.

Remote control point (RMTCPNAME)

Specifies the control point name of the remote system.

*ANY

The system determines the name of the remote control point used.

remote-control-point-name

Specify the remote control point NAME.

Adjacent link station (ADJLNKSTN)

Specifies the NAME of the adjacent link station. This name is used by the system to identify which switched controller description on the iSeries system is used to establish a link to a host S/370 system. The adjacent link station name for the iSeries system must match the name provided by the host system during link activation.

*NONE

No adjacent link station NAME is specified.

*ANY

The system determines which adjacent link station is used.

adjacent-link-station-name

Specify the adjacent link station name.

SSCP identifier (SSCPID)

Specifies the system service control point identifier of the host system.

Note: The system service control point identifier (SSCPID) is a 12-digit hexadecimal value; the first 2 digits are hexadecimal 05. This parameter is required for SDLC switched and SNBU if APPN(*YES) and NODETYPE(*LENNODE) are specified, or if APPN(*NO) is specified but RMTCPNAME is not specified. This parameter must be specified if SHM(*YES) is also specified.

system-service-control-point-identifier

Specify the system service control point identifier as a 12-digit hexadecimal value.

Local exchange identifier (LCLEXCHID)

Specifies the number used to identify the local system to the remote system. NOTE:

This parameter is necessary under either of the following conditions:

1. if parallel connections are required between an iSeries system and an SNA host system.
2. for Dependent LU Requester (DLUR) support (LINKTYPE(*DLUR)), if the dependent physical unit name (DEPPUNAME) parameter is not specified.

*LIND

The system uses the exchange identifier specified in the line description on the EXCHID parameter associated with this controller description.

local-exchange-identifier

Specify a local exchange identifier. The first three digits of this 8-digit hexadecimal number identify the block number and the remaining five digits identify the system.

Initial connection (INLCNN)

Specifies the method used to establish a connection with this controller.

*DIAL

The system initiates outgoing calls and answers incoming calls.

*ANS

The connection is made by the iSeries system when it answers an incoming call from this controller. If a call is received from the remote controller and all necessary conditions are met, the incoming call is answered by the system.

For X.25 connections, the line attached to the controller requires switched virtual circuits (SVCs) configured on the LGLCHLE parameter of type OUT or BOTH(*SVCOUT or *SVCBOTH) for the connection to succeed.

The line can be changed using the Change Line Description (X.25) (CHGLINX25) command.

Dial initiation (DIALINIT)

Specifies the method used to make the initial dial on a switched line between the system and the remote controller.

*LINKTYPE

The type of dial connection initiated is specified on the LINKTYPE parameter. For LAN or SDLC short-hold mode connections, the default is to dial the connection as soon as the controller description is varied on. For all other link types, the default is to delay dialing.

*IMMED

The dial connection is initiated as soon as the controller description is varied on.

*DELAY

The dial connection is delayed until a job is initiated that requests the use of the remote controller resources.

Connection number (CNNNBR)

Specifies the telephone number to dial to connect to this controller.

*DC

Direct call is being used in an X.21 circuit switched network.

*ANY

The system accepts calls from any network address.

connection-number

Specify the connection number.

Answer number (ANSNBR)

Specifies the X.25 network address from which calls are accepted.

*CNNNBR

Calls from the X.25 network address specified on the CNNNBR parameter are accepted.

*ANY

Calls are accepted from any X.25 network address.

Note: This parameter is no longer supported. It exists solely for compatibility with releases earlier than Version 5 Release 3 Modification 0 of operating system.

Outgoing connection list (CNNLSTOUT)

Specifies, for ISDN switched connections, the name of a connection list object that contains the ISDN assigned numbers for a dial out operation to the ISDN.

list-object

Specify the name of a connection list object.

Note: This parameter is no longer supported. It exists solely for compatibility with releases earlier than Version 5 Release 3 Modification 0 of operating system.

Connection list entry (CNNLSTOUTE)

Specifies, for ISDN switched connections, the entry name from the connection list that is used to make a call to the ISDN. The connection list must have been identified on the Outgoing connection list (CNNLSTOUT) parameter.

entry-name

Specify an entry name.

Station address (STNADR)

Specifies the station address used when communicating with the controller.

Valid values range from 00 to FE.

Note: 00 can be specified only for APPC controllers when *TDLC is specified for the Link type (LINKTYPE) parameter.

Note: If *SEC is specified on the ROLE parameter, this is the station address of the remote controller. If *PRI or *NEG is specified on the ROLE parameter, this is the local station address.

LAN remote adapter address (ADPTADR)

Specifies the 12-character adapter address of the remote controller. This is the address to which the system sends data when it communicates with the remote controller. This value can be obtained from the remote controller's configuration record. Valid values range from hex 000000000001 through hex FFFFFFFFFFFF.

adapter-address

Specify the adapter address of the remote controller.

X.25 network level (NETLVL)

Specifies the level of the X.25 network used to access this controller. The level is specified by giving the year of the standard used by the X.25 network.

Note: Use of the lower value of the remote DTE or the network level is suggested; for example, if the remote DTE is using the CCITT standard of 1980 and the network 1984, specify 1980 for this parameter.

1980

The 1980 Standard is used.

1984

The 1984 Standard is used.

1988

The 1988 Standard is used.

X.25 link level protocol (LINKPCL)

Specifies the link level protocol used on the X.25 network to communicate with this controller.

*QLLC

The Qualified Logical Link Control (QLLC) protocol is used.

*ELLC

The Enhanced Logical Link Control (ELLC) protocol is used.

X.25 logical channel ID (LGLCHLID)

Specifies the logical channel identifier used for the X.25 permanent virtual circuit (PVC) to this controller. The valid entry is xyy. Where:

• x = the logical group number, derived from your network subscription.
• yy = the logical channel number, derived from your subscription. The logical channel identifier must be one of the PVC logical channel identifiers that was defined in the X.25 line description. There is no default for this parameter.

X.25 connection password (CNNPWD)

Specifies the X.25 network password used for password exchange with the X.24 Call Request and Incoming Call packets (Call User Data field). This parameter is not valid for permanent virtual circuit (PVC) connections.

If you want to use a connection password that consists of characters whose hexadecimal value is less than 40, you must specify the password as a hexadecimal value. When less than 8 bytes are specified, the end of the password field is padded with blanks. A password of all blank is valid. All incoming call requests must match this password to establish a connection.

To specify a hexadecimal password, the digits must be specified in multiples of two, be no more than 16 digits long, be enclosed in apostrophes, and be preceded by an X. For example, X'0102030405' is a valid hexadecimal password.

Note: This connection password is highly recommended for controllers that operate with the Enhanced Logical Link Control (ELLC) protocol LINKPCL(*ELLC) on switched virtual circuit (SVC) connections. This enhanced protocol supports reconnection of virtual circuits after network errors which disconnect the line with a clear signal; however, this reconnection is not allowed to proceed without the password validation procedure being used as a unique identifier for the controller.

X.25-connection-password

Specify the connection password. The password for each controller can consist of any alphanumeric characters represented by the hexadecimal values ranging from 40 through FF.

APPN CP session support (CPSSN)

Specifies whether this controller supports sessions between control points.

*YES

This controller supports sessions between control points.

*NO

This controller does not support sessions between control points.

Remote APPN node type (NODETYPE)

Specifies the type of APPN node which this controller represents.

*ENDNODE

This node is an end node in an APPN network.

*LENNODE

This node is a low-entry networking node in an APPN network.

*NETNODE

This node is a network node in an APPN network.

*CALC

The system determines the type of node this controller represents.

Branch extender role (BEXROLE)

Specifies the role of the local system in an APPN network for the remote controller being configured. This parameter is only used when the local system has enabled the branch extender function via the NODETYPE parameter in the network attributes being set to *BEXNODE.

*NETNODE

The local system takes the role of a network node for the remote controller.

*ENDNODE

The local system takes the role of an end node for the remote controller.

APPN/HPR capable (HPR)

Specifies whether the local system can use APPN high-performance routing (HPR) when communicating with this controller. The controller description must specify APPN(*YES) to enable HPR. If HPR(*YES) is specified, the value of the MAXFRAME parameter of the line specified by the switched line list must be greater than or equal to 768, otherwise HPR will not be enabled over this connection.

*YES

The local system can use HPR, and HPR flows can proceed over the link defined by this controller.

*NO

The local system cannot use HPR, and HPR flows cannot proceed over the link defined by this controller.

HPR path switching (HPRPTHSWT)

Specifies whether an attempt is made to switch paths of HPR connections associated with this controller at the time the controller is varied off. If a path switch is not attempted or if there are no other available paths, jobs associated with the HPR connections will be ended. See the APPN Support information in the iSeries Information Center at http://www.iseries.ibm.com/infocenter for more information.

*NO

When this controller is varied off path switching will not be done for HPR connections associated with this controller. Jobs associated with HPR connections will be ended.

*YES

When this controller is varied off an attempt to switch paths of HPR connections associated with this controller will be made.

APPN transmission group number (TMSGRPNBR)

Specifies the transmission group number for this controller.

1

The default transmission group is one.

*CALC

The system specifies the value for the transmission group number.

transmission-group-number

Specify a value from 1 to 20 for the transmission group number.

APPN minimum switched status (MINSWTSTS)

Specifies the minimum status of the switched connection so that APPN will consider it as a controller that is available for routing.

*VRYONPND

APPN will consider the controller available for routing if the status is vary on pending, varied on, or active.

*VRYON

APPN will consider the controller available for routing only if the status is varied on or active.

Autocreate device (AUTOCRTDEV)

Specifies whether device descriptions can be automatically created for this controller description.

*ALL

All dependent devices than can be automatically created for this controller, except APPC devices, are automatically created.

*DEVINIT

Only session printer and display devices started by the SNA host controller (device-initiated) are automatically created.

*NONE

Dependent devices on this controller are not automatically created.

Autodelete device (AUTODLTDEV)

Specifies the number of minutes an automatically created device can remain in an idle state (when there are no active conversations on that device). When the time expires, the system automatically varies off and deletes the device description.

1440

The system will automatically vary off and delete the automatically-configured idle device descriptions after 1440 minutes (24 hours).

*NO

The system will not automatically vary off and delete the automatically-configured idle device descriptions.

wait-time

Specify the number of minutes to wait before deleting the automatically-configured idle device descriptions for this controller. Valid values range from 1 to 10,000.

User-defined 1 (USRDFN)

This field is used to describe unique characteristics of the line that you want to control. This parameter is valid only if advanced peer-to-peer networking (APPN) is used on the system.

*LIND

The user-defined value specified in the line description is used.

user-defined

Specify a value ranging from 0 through 255.

User-defined 2 (USRDFN)

This field is used to describe unique characteristics of the line that you want to control. This parameter is valid only if advanced peer-to-peer networking (APPN) is used on the system.

*LIND

The user-defined value specified in the line description is used.

user-defined

Specify a value ranging from 0 through 255.

User-defined 3 (USRDFN)

This field is used to describe unique characteristics of the line that you want to control. This parameter is valid only if advanced peer-to-peer networking (APPN) is used on the system.

*LIND

The user-defined value specified in the line description is used.

user-defined

Specify a value ranging from 0 through 255.

Recontact on vary off (RECONTACT)

Specifies whether a request for re-contact is sent to the host system when a normal vary off of the iSeries controller description is done.

Note: This parameter is valid only for X.25 and SDLC leased lines (if *X.25 or *SDLC is specified on the LINKTYPE parameter and *NO is specified on the SWITCHED parameter).

*YES

A request for re-contact to the remote system is sent.

*NO

A request for re-contact to the remote system is not sent. When this value is specified, a status of inactive is shown for the remote system.

Text 'description' (TEXT)

Specifies the text that briefly describes the object.

*BLANK

No text is specified.

character-value

Specify no more than 50 characters of text, enclosed in apostrophes.

Primary DLUS name (PRIDLUS)

Specifies the primary Dependent LU Server (DLUS) NAME and network identifier.

The name is in the format of XXXXXXXX YYYYYYYY the prefix being the CP name and the suffix being the network identifier of the APPN network (subnet) that the remote DLUS resides in. If the DLUS is in the same network as the iSeries system, then the user only needs to define the CP name; the default network identifier that is used is the local network identifier specified in the network attributes.

The network qualified CP name of the remote DLUS system services control point (SSCP) with which the iSeries DLUR host controller prefers to communicate. If this parameter is filled in and the iSeries DLUR controller is configured as Initial Connection *DIAL, the iSeries sends an activation request to this DLUS first.

The default is *NONE, but if Initial Connection is *DIAL INLCNN(*DIAL), then this parameter becomes a required parameter.

Element 1: Primary DLUS name

*NONE

No primary CP name is given.

primary-DLUS-name

Specify the name of the primary Dependent LU Server.

Element 2: Network ID

*NETATR

The LCLNETID value specified in the system network attributes is used.

network-ID

Specify the network identifier of the Dependent LU Server.

Backup DLUS name (BKUDLUS)

Specifies the backup Dependent LU Server (DLUS) name and network identifier.

The name is in the format of XXXXXXXX YYYYYYYY the prefix being the CP name and the suffix being the network identifier of the APPN network (subnet) that the remote DLUS resides in. If the DLUS is in the same network as the iSeries system, then the user only needs to define the CP name; the default network identifier that is used is the local network identifier specified in the network attributes.

The network qualified CP name of the remote DLUS system services control point (SSCP) with which the iSeries DLUR host controller prefers to communicate. If this parameter is filled in and the iSeries DLUR controller is configured as Initial Connection *DIAL, the iSeries sends an activation request to this DLUS first.

The default is *NONE, but if Initial Connection is *DIAL INLCNN(*DIAL), then this parameter becomes a required parameter.

Element 1: Backup DLUS Name

*NONE

No backup CP name is given.

backup-DLUS-NAME

Specify the NAME of the backup Dependent LU Server.

Element 2: Network ID

*NETATR

The LCLNETID value specified in the system network attributes is used.

network-ID

Specify the network identifier of the backup Dependent LU Server.

Dependent PU name (DEPPUNAME)

Specifies the dependent physical unit (PU) name used for DLUR, providing additional security for the connection.

If this name is filled in, an activation request (SNA ACTPU) from a DLUS node must reference this name or it will be rejected.

When the iSeries DLUR node initiates a session with the remote DLUS node (INLCNN(*DIAL)), the dependent PU NAME will be sent to the DLUS and it will return that name on the ACTPU request.

If the remote DLUS node initiates a session to the iSeries DLUR host controller via activation of pre-defined definitions on the DLUS node, there will have to be close coordination of the dependent PU NAME and the PU NAME specified on the DLUS.

If this parameter is not filled in, then checking is done on the local exchange ID and remote CP name parameters of the controller.

*NONE

No location name is defined.

dependent-PU-NAME

Specify the dependent PU NAME used for DLUR applications.

30-2550 (seconds) (ACTTMR)

This timer is used when system attempts to activate a session to the remote DLUS node (initial connection *DIAL). It is the amount of time the system will wait for an answer from the remote DLUS.

This parameter is used in conjunction with recovery limits (CMNRCYLMT) count limit and timer interval. For each attempt (up to count limit), an activation request (timed by the activation timer) is requested. Between attempts, the system waits for the timer interval before a new activation is attempted (assuming the system times out before receiving a retry error message).

The three parameters on the attempts to the primary DLUS are used and, once the count limit is exceeded, the system resets and tries the same retry limit count to the backup DLUS (if configured). Once the retry limit count is exhausted to all configured DLUS nodes, an error message is issued to the QSYSOPR message log with options to retry the whole activation sequence again.

170

The default time of 170 seconds is used.

activation-timer-value

Specify, in seconds, a value ranging from 30 through 2550.

Dsc/reconnect timer (T309) (RECNNTMR)

This timer is used when a session outage occurs to the remote DLUS node. It is the amount of time the host system DLUR support waits for the DLUS node to send an activation request back to the host system. Once the timer expires, host system does the following:

• If the iSeries DLUR host controller is configured to INLCNN(*DIAL):
  1. The DLUR support makes a one time attempt to activate a session to the DLUS node the system was connected to at the time of session outage.
  2. If that attempt fails, an error message is displayed in the QSYSOPR message log with retry option. If retry is taken, then the activation request is sent through the configured primary/backup DLUS again.
• If the iSeries DLUR host controller is configured to INLCNN(*ANS):
  1. The DLUR controller waits for an activation attempt from any DLUS node.

170

The default time of 170 seconds is used.

reconnect-timer-value

Specify, in seconds, a value ranging from 30 through 2550.

Attached devices (DEV)

Specifies the names of the devices that are attached to this controller. The device descriptions must already exist.

Up to 254 devices can be attached to this controller.

Character code (CODE)

Specifies whether the extended binary-coded decimal interchange code (*EBCDIC) or the American National Standard Code for Information Interchange (*ASCII) character code is used on the line.

*EBCDIC

The extended binary-coded decimal interchange code (EBCDIC) character code is used.

*ASCII

The ASCII character code is used.

Note: This parameter is no longer supported. It exists solely for compatibility with releases earlier than Version 5 Release 3 Modification 0 of operating system.

IDLC window size (IDLCWDWSIZ)

Specifies the window size for transmission to and reception controllers attached to the IDLC line.

*LIND

The value specified in the line description is used as the default window size.

window-size

Specify the window size. Valid values range from 1 through 31.

Note: This parameter is no longer supported. It exists solely for compatibility with releases earlier than Version 5 Release 3 Modification 0 of operating system.

IDLC frame retry (IDLCFRMRTY)

Specifies the maximum number of attempts to transmit a frame before reporting an error.

*LIND

The number of attempts specified in the line description is used.

IDLC-frame-retry

Specify a number of attempts. Valid values range from 0 through 100.

Note: This parameter is no longer supported. It exists solely for compatibility with releases earlier than Version 5 Release 3 Modification 0 of operating system.

IDLC response timer (IDLCRSPTMR)

Specifies the amount of time, in tenths of a second, to wait before retransmitting a frame if acknowledgement has not been received.

*LIND

The time specified in the line description is used.

IDLC-response-timer

Specify an amount of time. Valid values range from 10 through 100 tenths of a second. For example, 100 tenths of a second equals 10 seconds.

Note: This parameter is no longer supported. It exists solely for compatibility with releases earlier than Version 5 Release 3 Modification 0 of operating system.

IDLC connect retry (IDLCCNNRTY)

Specifies the number of times to attempt retransmission at connection time.

*LIND

The number of attempts specified in the line description is used.

*NOMAX

Indicates to continue until a successful transmission has been made.

connect-retry

Specify a number of attempts. Valid values range from 1 through 100.

Predial delay (PREDIALDLY)

Specifies the time interval to wait (in 0.5 second intervals) before dialing a number.

6

The default value of 6 provides a 3-second delay.

predial-delay

Specify a value ranging from 0 to 254 units. Each unit represents 0.5 second. To indicate no delay, specify a value of 0.

Redial delay (REDIALDLY)

Specifies the time interval to wait (in 0.5 second intervals) before re-dialing when the call attempt is unsuccessful.

120

The default value of 120 provides a 60-second delay.

redial-delay

Specify a value from 0 to 254 units. Each unit represents 0.5 second. To indicate no delay, specify a value of 0.

Dial retry (DIALRTY)

Specifies the number of re-dial attempts made by the system before considering the dialing unsuccessful.

2

The default number of retries is 2.

dial-retry

Specify a value from 0 to 254 in 0.5-second intervals, for the number of times the dialing will be tried.

Switched disconnect (SWTDSC)

Specifies whether the switched connection to this controller is dropped when the last device is varied off.

*NO

The switched connection is not dropped when the last device is varied off.

*YES

The switched connection is varied off when the last device is varied off.

Disconnect timer (DSCTMR)

Specifies options for controlling the time (in seconds) before a connection without activity is dropped, or the amount of time to delay the automatic disconnection. If the user does not want the line to drop, specify *NO for the SWTDSC parameter.

Element 1: Minimum Connect Timer

170

A connection is dropped when it has been inactive for 170 seconds.

disconnect-timer

Specify a time to wait before disconnecting. Valid values range from 0 through 65535 seconds.

Element 2: Disconnect Delay Timer

30

The disconnection is delayed for 30 seconds.

disconnect-delay-timer

Specify a value to delay link take down after the last session on the controller is stopped. Valid values range from 0 through 65535 seconds.

Note: For objects migrated from V2R1M1 or previous systems, the disconnect delay timer has a value of zero. This value is interpreted by the system as 30 seconds.

LAN DSAP (DSAP)

Specifies the destination service access point (DSAP). This is the logical address this system will send to when it communicates with the remote controller. This address allows the controller to properly route the data that comes from this system. The default value for the destination service access point is 04.

The value must match the value specified on the source service access point (SSAP) parameter in the remote controller's configuration record.

Note: The *OPC controller uses the value above for this field. The combination of RMTSYSNAME and DSAP defines a unique controller. This allows multiple controllers to exist between two systems.

04

The destination service access point is the default 04.

destination service access point

Specify a hexidecimal value ranging from 04 through 9C, in increments of 4 (for example, 04, 08, 0C, 10) to represent the destination service access point.

LAN SSAP (SSAP)

Specifies the source service access point (SSAP). This is the logical address the local system uses when it sends data to the remote controller. This address allows the controller to properly route the data that comes from the local system. The default value for the source service access point is 04.

It must match the value assigned to the destination service access point (DSAP) in the remote controller's configuration record.

04

The system uses the logical address of 04.

source-service-access-point:

Specify a hexadecimal value ranging from 04 through 9C, in increments of 4 (for example, 04, 08, 0C, 10) to represent the source service access point.

LAN frame retry (LANFRMRTY)

Specifies the number of times to retry a transmission when there is no acknowledgment from the remote controller in the time period specified by the LANRSPTMR parameter. This value is only used after a successful connection has been made.

*CALC

The system determines the LAN frame retry value based on the type of line that is lined to the controller.

LAN-frame-retry

Specify a value ranging from 0 through 254 for the number of times a frame is transmitted before an acknowledgement is received.

LAN connection retry (LANCNNRTY)

Specifies the number of times a transmission is attempted before an acknowledgement is received. This value is used at connection time (unlike LANFRMRTY which is used after a connection has been made).

*CALC

The system determines the LAN connection retry value.

LAN-connection-retry

Specify a value ranging from 0 through 254 for the number of times the transmission is attempted before an acknowledgement is received.

LAN response timer (LANRSPTMR)

Specifies the time period used to determine an inoperative condition on the link when connected.

*CALC

The system determines the LAN response timer value.

LAN-response-timer

Specify a value from 1 to 254 units. Each unit represents 0.1 second. To indicate no timer, specify 0.

LAN connection timer (LANCNNTMR)

Specifies the time period used to determine an inoperative condition on the link at connection time.

*CALC

The system determines the LAN connection timer value.

LAN-connection-timer

Specify a value ranging from 1 through 254 in 0.1-second intervals for the amount of time the system waits before an inoperative condition occurs. To indicate no timer, specify 0.

LAN acknowledgement timer (LANACKTMR)

Specifies the time interval to delay sending acknowledgements for received frames.

*CALC

The system determines the LAN acknowledgement timer value.

LAN-acknowledgement-timer

Specify a value ranging from 1 to 254 units. Each unit represents 0.1 second. To indicate no timer, specify 0. If 0 is specified for the LAN acknowledgement frequency (LANACKFRQ) parameter, 0 must also be specified for this parameter. If a non-zero number is specified for the LANACKFRQ parameter, a non-zero number must also be specified for this parameter.

LAN inactivity timer (LANINACTMR)

Specifies the time period used to determine an inactive condition for the controller.

*CALC

The system determines the LAN inactivity timer value.

LAN-inactivity-timer

Specify a value ranging from 1 through 255 in 0.1-second intervals for the length of time used to determine an inactive condition for the controller. To indicate no timer, specify 0.

LAN acknowledgement frequency (LANACKFRQ)

Specifies the maximum number of frames received before sending an acknowledgement to the controller.

*CALC

The system determines the LAN acknowledgement frequency value.

LAN-acknowledge-frequency

Specify a value from 0 to 127 for the number of frames received. If 0 is specified for the LAN acknowledgement timer (LANACKTMR) parameter, 0 must also be specified for this parameter. If a non-zero number is specified for the LANACKTMR parameter, a non-zero number must also be specified for this parameter.

LAN max outstanding frames (LANMAXOUT)

Specifies the maximum number of frames that can be sent before an acknowledgement is received from the remote system.

*CALC

The system determines the LAN maximum outstanding frames value.

LAN-maximum-outstanding-frames

Specify a value ranging from 1 through 127 for the number of frames that can be sent before an acknowledgement is received.

LAN access priority (LANACCPTY)

Specifies the priority used for accessing the remote controller. The larger the number the higher the priority for this controller. This parameter is only used when the controller attaches to TRLAN.

*CALC

The system determines the LAN access priority value.

LAN-access-priority

Specify a value from 0 to 3 for the access priority for this controller on a local area network (LAN).

LAN window step (LANWDWSTP)

Specifies whether to reduce to 1 the maximum number of frames outstanding to the remote system during network congestion. This parameter (LAN Window Step) indicates the number of frames that must be successfully received by the remote system before the number of maximum outstanding frames can be increased by 1. The increase continues this way until the maximum number of outstanding frames reaches the value specified by the LAN maximum outstanding frames (LANMAXOUT) parameter.

*NONE

The number of outstanding frames is not reduced during network congestion.

LAN-window-step

Specify a value from 1 to 127 for the number of frames that must be successfully received by the remote system before the maximum number of outstanding frames can be increased by 1.

X.25 switched line selection (SWTLINSLCT)

Specifies the method that is used to select lines from an X.25 switched line list.

*FIRST

Lines are selected beginning with the first line in the switched line list.

*CALC

The system determines which line in the switched line list will be selected.

X.25 default packet size (DFTPKTSIZE)

Specifies the default packet size used by the X.25 network for transmission and reception.

Element 1: Transmit Packet Size

*LIND

The value specified in the line description is the default value.

transmit-packet-size

Specify a default packet size for transmission. The valid values for the packet size are 64, 128, 256, 512, 1024, 2048, and 4096.

Element 2: Receive Packet Size

*LIND

The value specified in the line description is the default value.

*TRANSMIT

The value specified as the default packet size for transmission is used as the default for reception.

receive-packet-size

Specify a default packet size for reception. The valid values for the packet size are 64, 128, 256, 512, 1024, 2048, and 4096.

X.25 default window size (DFTWDWSIZE)

Specifies the default window size for transmission and reception.

Element 1: Transmit Window Size

*LIND

The value specified in the line description is used as the default window size.

transmit-window-size

Specify the appropriate default window size. If you specified modulus 8, valid values range from 1 through 7. If you specified modulus 128, valid values range from 1 through 15. For switched virtual circuit (SVC) incoming calls, the system accepts the window size indicated in the Incoming Call packet facilities field.

Element 2: Receive Window Size

*LIND

The value specified in the line description is used as the default window size.

*TRANSMIT

The value specified as the default window size for transmission is used as the default for reception.

receive-window-size

Specify the appropriate default window size. If you specified modulus 8, valid values range from 1 through 7. If you specified modulus 128, valid values range from 1 through 15.

X.25 user group identifier (USRGRPID)

Specifies the closed user-group ID for contacting this switched virtual circuit (SVC) controller on the X.25 network.

Specify the 2-digit decimal value, from 00 through 99, as provided by the network subscription. This parameter is not valid for permanent virtual circuit (PVC) connections. It is valid only for SVC circuit outgoing call operations and is ignored for SVC incoming call connections.

X.25 reverse charging (RVSCRG)

Specifies whether reverse charges are accepted or requested when contacting this controller.

*NONE

No reverse charging for network tariff billing is accepted.

*REQUEST

Charges are requested on outgoing call request packets.

*ACCEPT

Reverse charging for network tariff billing is accepted on incoming requests.

*BOTH

Both incoming and outgoing requests are accepted.

X.25 frame retry (X25FRMRTY)

Specifies the maximum number of times a frame is sent after the response timer ends when connected to this controller. The value for this parameter depends on the quality of service provided by the network and the connection to that network; that is, the frequency of lost link protocol data units.

7

The default for the maximum number of transmissions is 7.

X.25 frame retry

Specify a value ranging from 0 through 21 for the number of times a frame is sent.

X.25 response timer (X25RSPTMR)

Specifies the time period allowed to return an acknowledgement when an LLC protocol data unit is sent while connected to this controller.

300

The time allowed to return an acknowledgment is 30 seconds.

X.25 response-timer

Specify an amount of time in tenths of a second. Valid values range from 1 through 2550 in 0.1-second intervals.

X.25 acknowledgement timer (X25ACKTMR)

Specifies the amount of time to delay sending acknowledgements for received frames.

20

The time allowed to delay sending an acknowledgment is 2 seconds.

X.25-acknowledgment-timer

Valid values range from 1 to 2550 in 0.1 second intervals, or 0 to indicate no delay.

X.25 inactivity timer (X25INACTMR)

Specifies the time period used to determine an inactive condition for the controller. Valid values range from 1 to 2550 in 0.1 second intervals.

1440

The time period used to determine an inactive condition for the controller is 10.5 seconds.

User facilities (USRFCL)

Specifies a string of hexadecimal characters sent to the X.25 network to request additional services. The system allows up to 218 hexadecimal characters.

Recovery limits (CMNRCYLMT)

Specifies the number of recovery attempts made by the system before an inquiry message is sent to the system operator. Also specifies the time (in minutes) that must elapse before the system sends an inquiry message to the system operator indicating that the recovery attempt count limit is reached.

Element 1: Maximum Recovery Limit

2

Two recovery attempts are made within the interval specified.

*SYSVAL

The value in the QCMNRCYLMT system value is used.

count limit

Specify the number of second-level recovery attempts to be made. Valid values range from 0 through 99.

Element 2: Recovery Time Interval

5

The specified number of recovery attempts is made within a 5-minute interval.

time-interval

Specify the time interval (in minutes) at which the specified number of second-level recoveries are attempted. Valid values range from 0 through 120. If the value specified for count-limit is not 0, the value 0 specifies infinite recovery.

More information on communication recovery is in the Communcations Management book, SC41-5406.

Message queue (MSGQ)

Specifies the message queue to which operational messages are sent.

*SYSVAL

Messages are sent to the message queue defined in the QCFGMSGQ system value.

*SYSOPR

Messages are sent to the system operator message queue (QSYS/QSYSOPR).

Qualifier 1: Message queue

name

Specify the name of the message queue to which operational messages are sent.

Qualifier 2: Library

name

Specify the name of the library where the message queue is located.

For more information about using this command, see the Communcations Management book, SC41-5406.

Authority (AUT)

Specifies the authority you are giving to users who do not have specific authority for the object, who are not on an authorization list, and whose group profile or supplemental group profiles do not have specific authority for the object.

*CHANGE

The user can perform all operations on the object except those limited to the owner or controlled by object existence (*OBJEXIST) and object management (*OBJMGT) authorities. The user can change and perform basic functions on the object. *CHANGE authority provides object operational (*OBJOPR) authority and all data authority. If the object is an authorization list, the user cannot add, change, or remove users.

*ALL

The user can perform all operations except those limited to the owner or controlled by authorization list management (*AUTLMGT) authority. The user can control the object's existence, specify the security for the object, change the object, and perform basic functions on the object. The user also can change ownership of the object.

*USE

The user can perform basic operations on the object, such as running a program or reading a file. The user cannot change the object. Use (*USE) authority provides object operational (*OBJOPR), read (*READ), and execute (*EXECUTE) authorities.

*EXCLUDE

The user cannot access the object.

*LIBCRTAUT

The system determines the authority for the object by using the value specified for the Create authority (CRTAUT) parameter on the Create Library (CRTLIB) command for the library containing the object to be created. If the value specified for the CRTAUT parameter is changed, the new value will not affect any existing objects.

name

Specify the name of an authorization list to be used for authority to the object. Users included in the authorization list are granted authority to the object as specified in the list. The authorization list must exist when the object is created.

Examples

CRTCTLHOST   CTLD(HOST1)  LINKTYPE(*LAN)  SWTLINLST(LAN1)
             RMTCPNAME(CPX)  ADPTADR(056000000011)

This command creates a host controller on a local area network.

Error messages

*ESCAPE Messages

CPF26BB

Extended wireless controller member not changed.

CPF26BC

Extended wireless controller member not displayed.

CPF26BD

Entry for barcode group not removed from extended wireless controller member.

CPF26BE

Entry for PTC group not removed from extended wireless controller member.

CPF26BF

Program QZXCINZ terminated abnormally. See previous messages.

CPF26B3

Extended wireless line member not added.

CPF26B4

Extended wireless line member not changed.

CPF26B5

Extended wireless line member not displayed.

CPF26B8

Extended wireless controller member not added.

CPF2716

Controller description &1 not created.