CHGEWLM (Change Extended Wireless Line Member)

CHGEWLM Command syntax diagram

 

Purpose

The Change Extended Wireless Line Member (CHGEWLM) command changes the extended wireless line parameters in the specified source file member.

 

Restrictions

1. If the values specified on the INZFILE and INZMBR parameters of this command do not match the values specified on the corresponding parameters of the wireless line description, the extended wireless line configuration data will not be downloaded to the wireless adapter.
   
   

   Note:

   Use the Change Line Description (Wireless) (CHGLINWLS) command to view or to change values specified on the INZFILE and INZMBR parameters in the wireless line description.

2. You must have *IOSYSCFG special authority to use this command.

 

Required Parameters

INZMBR

Specifies the name of the source file member that contains the extended wireless line configuration data that is changing.

 

Optional Parameters

INZFILE

Specifies the name of the source physical file that contains the extended configuration source file member. If the source physical file does not exist, this command will fail.

The name of the source 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.

library-name: Specify the name of the library to be searched.

QEWLSRC: The source file name QEWLSRC is used.

source-file-name: Specify the name of the source physical file that contains the source file member that is changing.

ADPTCFG

Specifies the wireless local area network (LAN) adapter configuration. The wireless LAN adapter has two communication methods: radio and wire backbone. The radio is a direct-sequence spread spectrum radio that can be used for wireless communications. The wire backbone is used to connect access points to a wireless LAN adapter. These access points also have a direct-sequence spread spectrum radio and are used to extend the radio coverage of the wireless network.

*SAME: The value does not change.

*ALL: The wireless LAN adapter uses both radio and wire backbone communications.

*RADIO: The wireless LAN adapter uses only radio communications.

*WIRED: The wireless LAN adapter uses only wire backbone communications.

HOPID

Specifies the 12-character hexadecimal radio identifier on the wireless LAN adapter. This is an internal identifier that is used to determine the destination of a data packet, during its next hop on the network.

Note:

The value specified by the HOPID parameter is one of two different 12-character hexadecimal identifiers used by a wireless LAN adapter. The other is an endpoint identifier that is equivalent to the identifier used in Ethernet or token-ring networks.

*SAME: The value does not change.

*ADPT: The preset wireless input/output adapter (IOA) address is used.

hop-ID: Specify the wireless LAN adapter hop address that overrides the preset address. The hop address must be an individual address (it cannot be a group address). Valid values range from 020000000000 to FEFFFFFFFFFF in hexadecimal format. The second digit from the left of the address must be a 2, 6, A, or E.

ROOT

Specifies whether the radio of the wireless LAN adapter is a root cell.

A wireless network consists of a group of wireless access points that are interconnected in the form of a logical spanning tree. One of these wireless access points must be designated as the root node for the network.

*SAME: The value does not change.

*YES: The radio on the wireless LAN adapter is a root cell.

*NO: The radio on the wireless LAN adapter is not a root cell.

FREQUENCY

Specifies which center frequency to use on the direct sequence radio. There are five center frequencies that are divided into two groups: A (channels 1,3 and 5) and B (channels 2 and 4). A center frequency from one of these groups will not overlap radio coverage with any other center frequency of that group; but, it will overlap with center frequencies of the other group. Frequencies are referenced by channel number since the exact frequency value may change based on channel set and country or region.

*SAME: The value does not change.

channel-number: Specify the frequency channel number to be used. Valid values are 1 to 5.

DATARATE

Specifies wireless LAN data rate.

*SAME: The value does not change.

2M: A wireless LAN data rate of 2 megabits per second is used.

1M: A wireless LAN data rate of 1 megabit per second is used.

SYSID

Specifies the 6-character hexadecimal radio system identifier to be used.

*SAME: The value does not change

system-ID: Specify a system ID to be used. Valid values range from 000002 to FFFFFE in hexadecimal format and the last digit must be even (such as 0, 2, 4, 6, 8, A, C, E).

TEXT

Specifies the text that briefly describes the program and its function. More information is in Commonly used parameters.

*SAME: The value does not change.

*BLANK: Text is not specified.

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

Example for CHGEWLM

CHGEWLM   INZMBR(EWL01)  INZFILE(*CURLIB/QEWLSRC)
  FREQUENCY(*A2)

This command changes the parameter FREQUENCY to a value of *A2 (2.442 gigahertz) in the extended wireless line source member EWL01 in source physical file QEWLSRC in the current library.

Error messages for CHGEWLM

*ESCAPE Messages

None.