[UNIX, Linux, Windows, IBM i]

DISPLAY LISTENER (display listener information) on Multiplatforms

Use the MQSC command DISPLAY LISTENER to display information about a listener.

Using MQSC commands

For information on how you use MQSC commands, see Performing local administration tasks using MQSC commands.

Synonym: DIS LSTR

DISPLAY LISTENER

Read syntax diagramSkip visual syntax diagram DISPLAY LISTENER ( generic-listener-name ) TRPTYPE(ALL)TRPTYPE(LU62)TRPTYPE(NETBIOS)TRPTYPE(SPX)TRPTYPE(TCP)WHERE(FilterCondition) ALL requested attrs
Requested attrs
Read syntax diagramSkip visual syntax diagram,ADAPTER1ALTDATEALTTIMEBACKLOGCOMMANDS1CONTROLDESCRIPADDRLOCLNAME1NTBNAMES1PORTSESSIONS1SOCKET1TPNAME1
Notes:
  • 1 Valid only on Windows.

Usage notes

The values displayed describe the current definition of the listener. If the listener has been altered since it was started, the currently running instance of the listener object may not have the same values as the current definition.

Keyword and parameter descriptions for DISPLAY LISTENER

You must specify a listener for which you want to display information. You can specify a listener by using either a specific listener name or a generic listener name. By using a generic listener name, you can display either:
  • Information about all listener definitions, by using a single asterisk (*), or
  • Information about one or more listeners that match the specified name.
( generic-listener-name )
The name of the listener definition for which information is to be displayed. A single asterisk (*) specifies that information for all listener identifiers is to be displayed. A character string with an asterisk at the end matches all listeners with the string followed by zero or more characters.
TRPTYPE
Transmission protocol. If you specify this parameter, it must follow directly after the generic-listener-name parameter. If you do not specify this parameter, a default of ALL is assumed. Values are:
ALL
This is the default value and displays information for all listeners.
LU62
Displays information for all listeners defined with a value of LU62 in their TRPTYPE parameter.
NETBIOS
Displays information for all listeners defined with a value of NETBIOS in their TRPTYPE parameter.
SPX
Displays information for all listeners defined with a value of SPX in their TRPTYPE parameter.
TCP
Displays information for all listeners defined with a value of TCP in their TRPTYPE parameter.
WHERE
Specify a filter condition to display information for those listeners that satisfy the selection criterion of the filter condition. The filter condition is in three parts: filter-keyword, operator, and filter-value:
filter-keyword
Any parameter that can be used to display attributes for this DISPLAY command.
operator
This is used to determine whether a listener satisfies the filter value on the given filter keyword. The operators are:
LT
Less than
GT
Greater than
EQ
Equal to
NE
Not equal to
LE
Less than or equal to
GE
Greater than or equal to
LK
Matches a generic string that you provide as a filter-value
NL
Does not match a generic string that you provide as a filter-value
filter-value
The value that the attribute value must be tested against using the operator. Depending on the filter-keyword, this can be:
  • An explicit value, that is a valid value for the attribute being tested.
  • A generic value. This is a character string. with an asterisk at the end, for example ABC*. If the operator is LK, all items where the attribute value begins with the string (ABC in the example) are listed. If the operator is NL, all items where the attribute value does not begin with the string are listed.

    You cannot use a generic filter-value for parameters with numeric values or with one of a set of values.

ALL
Specify this to display all the listener information for each specified listener. If this parameter is specified, any parameters that are requested specifically have no effect; all parameters are still displayed.

This is the default if you do not specify a generic identifier, and do not request any specific parameters.

Requested parameters

Specify one or more attributes that define the data to be displayed. The attributes can be specified in any order. Do not specify the same attribute more than once.

ADAPTER
The adapter number on which NetBIOS listens.
ALTDATE
The date on which the definition was last altered, in the form yyyy-mm-dd.
ALTTIME
The time at which the definition was last altered, in the form hh.mm.ss.
BACKLOG
The number of concurrent connection requests that the listener supports.
COMMANDS
The number of commands that the listener can use.
CONTROL
How the listener is to be started and stopped:
MANUAL
The listener is not to be started automatically or stopped automatically. It is to be controlled by use of the START LISTENER and STOP LISTENER commands.
QMGR
The listener being defined is to be started and stopped at the same time as the queue manager is started and stopped.
STARTONLY
The listener is to be started at the same time as the queue manager is started, but is not requested to stop when the queue manager is stopped.
DESCR
Descriptive comment.
IPADDR
The listener's IP address.
LOCLNAME
The NetBIOS local name that the listener uses.
NTBNAMES
The number of names that the listener can use.
PORT
The port number for TCP/IP.
SESSIONS
The number of sessions that the listener can use.
SOCKET
SPX socket.
TPNAME
The LU6.2 transaction program name.
For more information on these parameters, see DEFINE LISTENER (define a new listener) on Multiplatforms.