Change Line Desc (Wireless) (CHGLINWLS)

The Change Line Description (Wireless) (CHGLINWLS) command changes a line description for a wireless local area network (LAN) line.

Note: Extended wireless line configuration data is contained in the source file and member specified on the INZFILE and INZMBR parameters, respectively. When the line is varied on, this configuration data is downloaded to the wireless adapter. It is recommended that INZPGM(QZXCINZ) and INZFILE(QEWLSRC) be used, and that a source member containing configuration initialization data be specified on the INZMBR parameter. For more information about downloading extended wireless line configuration data, see the LAN, Frame-Relay and ATM Support book, SC41-5404.

More information about using this command is in the Communications Configuration book, SC41-5401.

Parameters

Keyword	Description	Choices	Notes
LIND	Line description	Name	Required, Key, Positional 1
RSRCNAME	Resource name	Name, *SAME	Optional
ONLINE	Online at IPL	SAME, YES, *NO	Optional
VRYWAIT	Vary on wait	15-180, NOWAIT, SAME	Optional
ADPTADR	Local adapter address	020000000000-FEFFFFFFFFFF, SAME, ADPT	Optional
GRPADR	Group address	Single values: SAME, NONE Other values (up to 12 repetitions): 010000000000-FDFFFFFFFFFF	Optional
MAXCTL	Maximum controllers	1-256, *SAME	Optional
SSAP	SSAP list	Single values: SAME, SYSGEN Other values (up to 24 repetitions): Element list	Optional
	Element 1: Source service access point	02-FE
	Element 2: SSAP maximum frame	265-1496, *MAXFRAME, 265, 521, 1033, 1466, 1493, 1496
	Element 3: SSAP type	CALC, NONSNA, *SNA
LINKSPEED	Link speed	SAME, MIN, 1200, 2400, 4800, 7200, 9600, 14400, 19200, 48000, 56000, 64000, 112000, 128000, 168000, 192000, 224000, 256000, 280000, 320000, 336000, 384000, 448000, 499000, 576000, 614000, 691000, 768000, 845000, 922000, 998000, 1075000, 1152000, 1229000, 1382000, 1536000, 1690000, 1843000, 1997000, 4M, *MAX	Optional
COSTCNN	Cost/connect time	0-255, *SAME	Optional
COSTBYTE	Cost/byte	0-255, *SAME	Optional
SECURITY	Security for line	SAME, NONSECURE, *ENCRYPTED	Optional
PRPDLY	Propagation delay	SAME, LAN, MIN, MAX	Optional
USRDFN1	User-defined 1	0-255, *SAME	Optional
USRDFN2	User-defined 2	0-255, *SAME	Optional
USRDFN3	User-defined 3	0-255, *SAME	Optional
AUTOCRTCTL	Autocreate controller	YES, NO, *SAME	Optional
AUTODLTCTL	Autodelete controller	1-10000, NONE, SAME	Optional
CMNRCYLMT	Recovery limits	Single values: SAME, SYSVAL Other values: Element list	Optional
	Element 1: Count limit	0-99, 2
	Element 2: Time interval	0-120, 5
INZFILE	Initialization source file	Qualified object name	Optional
	Qualifier 1: Initialization source file	Name, SAME, NONE
	Qualifier 2: Library	Name, LIBL, CURLIB
INZMBR	Initialization source member	Name, SAME, NONE	Optional
INZPGM	Initialization program	Qualified object name	Optional
	Qualifier 1: Initialization program	Name, SAME, NONE
	Qualifier 2: Library	Name, LIBL, CURLIB
TEXT	Text 'description'	Character value, SAME, BLANK	Optional

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Resource name (RSRCNAME)

Specifies the resource name that describes the automatic call unit port. The resource name consists of the input/output adapter (IOA) resource name and the port number on the IOA. For example, if the resource name of the IOA is LIN01 and the port on the IOA is 1, then the resource name would be LIN011.

*SAME: The value does not change.

name: Specify the resource name of the communications port.

This is a required parameter.

Vary on wait (VRYWAIT)

Specifies whether the line is varied on asynchronously or synchronously. For synchronous vary on, this parameter specifies how long the system waits for the vary on to complete.

*SAME: The value does not change.

*NOWAIT: The system does not wait for vary on completion. The line is varied on asynchronously.
vary-on-wait: Specify the time (in seconds) to wait. Valid values range from 15 through 180. The system waits until the line is varied on, or until the specified time passes, before completing the Vary Configuration (VRYCFG) command.

Notes:

When ONLINE(*YES) is used, specifying a wait time in the line description affects system IPL time. In such cases, system IPL time is influenced by the amount of time required to synchronously vary on the line or reach the wait-time value.
The time required to vary on a line is the time it takes to:
- Put tasks in place to manage the line
- Activate the communications I/O processor (IOP), including downloading the IOP model-unique Licensed Internal Code
- Establish the communications tasks and processes

Normal vary-on time ranges from 5 through 45 seconds, but can be longer, depending on the system, line protocol, and other factors.

Local adapter address (ADPTADR)

Specifies the 12-character hexadecimal adapter address.

*SAME: The value does not change.

*ADPT: The preset wireless adapter address is used as the local adapter address. The adapter address can be displayed by using the Display Line Description (DSPLIND) command after the line description has been successfully varied on.
local-adapter-address: Specify the local wireless adapter address to override the preset local address. The local adapter address must be an individual address (it cannot be a group address). Valid values range from 020000000000 through FEFFFFFFFFFF in hexadecimal format. The second digit (from the left) of the address must be 2, 6, A, or E.

Group address (GRPADR)

Specifies whether to include the adapter as part of a wireless group address. This address is used to identify all adapters on the wireless network that have the same group address.

*SAME: The value does not change.

*NONE: A group address is not used.
group-address: Specify the address of the group of adapters to which the local adapter is added. Valid values range from 010000000000 through FDFFFFFFFFFF in hexadecimal format. The second digit (from the left) must be odd. All group addresses must be unique.

SSAP list (SSAP)

Specifies source service access points (SSAPs). This is the hexadecimal logical address used to route incoming data from the Ethernet bus to the proper user. A maximum frame size can be specified for each SSAP.

Note: Ethernet Version 2 (specified as *ETHV2 on the ETHSTD parameter) does not allow the SSAP values of 06 and AA.

The destination service access point (DSAP), specified by the remote controller, must match one of the SSAPs specified in order for communication to occur. All SSAP values must be unique.

*SAME: The value does not change.

*SYSGEN: For ETHSTD(*ALL or *IEEE8023), the operating system creates three SSAPs: SSAP 04 for SNA applications; AA and 06 for TCP/IP applications. For ETHSTD(*ETHV2), the system creates hex 04 for SNA.

The possible SSAPs value is:

source-service-access-point: Specify up to 24 SSAPs, including hex AA and 06 for TCP/IP, and any hexadecimal number 04 through 9C that is divisible by four for SNA applications.

The possible Frame Size for SSAPs values are:

*MAXFRAME: The system determines the maximum frame size (data field size) that can be transmitted or received. If ETHSTD(*ALL or *IEEE8023) is specified, *CALC produces a frame size of 1496 for TCP/IP and SNA SSAPs. If ETHSTD(*ETHV2) is specified, *CALC produces a frame size of 1493 for SNA SSAPs.
SSAP-maximum-frame: Specify the maximum frame size for each SSAP. Valid values for the maximum frame size range from 265 through 1496.

The possible SSAP Type values are:

*CALC: The system determines the value to use.
*SNA: The SSAP is used for SNA communications. Valid values range from 04 through 9C and must be divisible by 4.
*NONSNA: The SSAP is used for communications other than SNA communications. Valid values range from 02 through FE and must be divisible by 2.

Link speed (LINKSPEED)

Specifies the link speed in bits per second (bps). This parameter is valid only if APPN is used on the system.

*SAME: The value does not change.

4M: A link speed of 4 million bps is used.
*MIN: A link speed of less than 4M is used.
*MAX: A link speed greater than 4M is used.
link-speed: Specify the link speed. Valid values are: 1200, 2400, 4800, 7200, 9600, 14400, 19200, 48000, 56000, 64000, 112000, 128000, 168000, 192000, 224000, 256000, 280000, 320000, 336000, 384000, 448000, 499000, 576000, 614000, 691000, 768000, 845000, 922000, 998000, 1075000, 1152000, 1229000, 1382000, 1536000, 1690000, 1843000, 1997000, and 4M.

User-defined 1 (USRDFN1)

Specifies the first of the three user-defined fields. This field is used to describe unique characteristics of the line that is controlled. This parameter is valid only if APPN is used on the system.

Note: Information about the values that are specified for this parameter is provided in the APPN Support information in the iSeries Information Center at http://www.iseries.ibm.com/infocenter.

*SAME: The value does not change.

user-defined-1: Specify a value ranging from 0 through 255.

User-defined 2 (USRDFN2)

Specifies the second of the three user-defined fields. This field is used to describe unique characteristics of the line that is controlled. This parameter is valid only if APPN is used on the system.

Note: Information about the values that are specified for this parameter is provided in the APPN Support information in the iSeries Information Center at http://www.iseries.ibm.com/infocenter.

*SAME: The value does not change.

user-defined-2: Specify a value ranging from 0 through 255.

User-defined 3 (USRDFN3)

Specifies the third of the three user-defined fields. This field is used to describe unique characteristics of the line that is controlled. This parameter is valid only if APPN is used on the system.

Note: Information about the values that are specified for this parameter is provided in the APPN Support information in the iSeries Information Center at http://www.iseries.ibm.com/infocenter.

*SAME: The value does not change.

user-defined-3: Specify a value ranging from 0 through 255.

Autocreate controller (AUTOCRTCTL)

Specifies whether the system automatically creates controller descriptions when calls are received from adjacent systems on the local area network (LAN).

*SAME: The value does not change.

*NO: The system does not automatically create a controller description when incoming calls are received.
*YES: The system automatically creates a controller description when incoming calls are received.

Autodelete controller (AUTODLTCTL)

Specifies the number of minutes an automatically created controller can remain in an idle state (switched from varied on to varied on pending) before the controller description and attached device descriptions are varied off and deleted.

*SAME: The value does not change.

*NONE: The system does not automatically delete or vary off the automatically configured idle controller descriptions.
wait-time: Specify the number of minutes to wait before deleting the automatically configured, idle controller descriptions for this line. Valid values range from 1 to 10000 minutes.

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.

*SAME: The value does not change.

The possible Maximum Recovery Limit values are:

count-limit: Specify the number of recovery attempts to be made. Valid values range from 0 through 99.

The possible Recovery Time Interval values are:

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.

The possible Single Value values are:

*SYSVAL: The recovery limits specified in the QCMNRCYLMT system value are used.

Initialization source file (INZFILE)

Specifies the name of a source file containing configuration initialization data.

Note: The INZFILE and INZMBR parameters are required when downloading extended wireless line configuration data to the wireless adapter as discussed at the beginning of this command description.

*SAME: The value does not change.

*NONE: No initialization file name is specified.

The name of the initialization file can be qualified by one of the following library values:

*LIBL: All libraries in the job's library list are searched until the first match is found.

*CURLIB: The current library for the job is searched. If no library is specified as the current library for the job, the QGPL library is used.
name: Specify the name of the library to be searched.
name: Specify the name of a source file containing the initialization data. A value of *NONE is accepted for this parameter. If a source file name has not been added prior to varying on this line description, then the current IOP defaults are used for initialization.

Initialization source member (INZMBR)

Specifies the name of a source file member containing configuration initialization data.

Note: The INZFILE and INZMBR parameters are required when downloading extended wireless line configuration data to the wireless adapter as discussed at the beginning of this command description.

*SAME: The value does not change.

*NONE: No source file member name is specified.
name: Specify the name of a source file member containing the initialization data. If a source member name has not been added prior to varying on this line description, the the current IOP defaults are used for initialization.

Initialization program (INZPGM)

Specifies the name of a program to manage configuration initialization data.

Note: For 2663 wireless adapters, it is recommended that INZPGM(QZXCINZ) be specified. This results in the values of INZFILE and INZMBR being passed to the Change Extended Wireless Line Member (CHGEWLM) command when the line is varied on.

*SAME: The value does not change.

*NONE: No initialization program name is specified.

The name of the initialization program can be qualified by one of the following library values:

*LIBL: All libraries in the job's library list are searched until the first match is found.

*CURLIB: The current library for the job is searched. If no library is specified as the current library for the job, the QGPL library is used.
name: Specify the name of the library to be searched.
name: Specify the name of a program to manage configuration initialization data. If a program name is specified, it is called when this line description is created. The names of the source file and member containing configuration initialization data are passed to this program as parameters.