Inquire Communication Information Object (Response) on Multiplatforms

The response to the Inquire Communication Information Object (MQCMD_INQUIRE_COMM_INFO) command consists of the response header followed by the ComminfoName structure, and the requested combination of attribute parameter structures (where applicable).

If a generic communication information name was specified, one such message is generated for each object found.

Always returned:: ComminfoName
Returned if requested:: AlterationDate, AlterationTime, Bridge, CCSID, CommEvent, Description, Encoding, GrpAddress, MonitorInterval, MulticastHeartbeat, MulticastPropControl, MsgHistory, NewSubHistory, PortNumber, Type

Response data

AlterationDate (MQCFST): Alteration date (parameter identifier: MQCA_ALTERATION_DATE).
The date when the information was last altered, in the form yyyy-mm-dd.

AlterationTime (MQCFST): Alteration time (parameter identifier: MQCA_ALTERATION_TIME).
The time when the information was last altered, in the form hh.mm.ss.

Bridge (MQCFIN): Multicast Bridging (parameter identifier: MQIA_MCAST_BRIDGE).
Controls whether publications from applications not using Multicast are bridged to applications using multicast.

CCSID (MQCFIN): CCSID that messages are trasmitted in (parameter identifier: MQIA_CODED_CHAR_SET_ID).
The coded character set identifier that messages are transmitted in.

CommEvent (MQCFIN)

Event Control (parameter identifier: MQIA_COMM_EVENT).

Controls whether event messages are generated for multicast handles that are created using this COMMINFO object. The value can be:

MQEVR_DISABLED: Event reporting disabled.
MQEVR_ENABLED: Event reporting enabled.
MQEVR_EXCEPTION: Reporting of events for message reliability below the reliability threshold enabled.

ComminfoName (MQCFST): The name of the communication information definition (parameter identifier: MQCA_COMM_INFO_NAME).
The maximum length of the string is MQ_COMM_INFO_NAME_LENGTH.

Description (MQCFST): Description of the communication information definition (parameter identifier: MQCA_COMM_INFO_DESC).
The maximum length of the string is MQ_COMM_INFO_DESC_LENGTH.

Encoding (MQCFIN)

Encoding that messages are transmitted in (parameter identifier: MQIACF_ENCODING).

The encoding that messages are transmitted in. The value can be any of the following values:

MQENC_AS_PUBLISHED: Encoding taken from published message.
MQENC_NORMAL
MQENC_REVERSED
MQENC_S390
MQENC_TNS

GrpAddress (MQCFST): The group IP address or DNS name (parameter identifier: MQCACH_GROUP_ADDRESS).
The maximum length of the string is MQ_GROUP_ADDRESS_LENGTH.

MonitorInterval (MQCFIN): Frequency of monitoring (parameter identifier: MQIA_MONITOR_INTERVAL).
How frequently, in seconds, monitoring information is updated and event messages are generated.

MulticastHeartbeat (MQCFIN): Heartbeat Interval for multicast (parameter identifier: MQIACH_MC_HB_INTERVAL).
The heartbeat interval, in milliseconds, for multicast transmitters.

MulticastPropControl (MQCFIN)

Multicast property control (parameter identifier: MQIACH_MULTICAST_PROPERTIES).

Control which MQMD properties and user properties flow with the message. The value can be any of the following values:

MQMCP_ALL: All MQMD and user properties.
MQMAP_REPLY: Properties related to replying to messages.
MQMAP_USER: Only user properties.
MQMAP_NONE: No MQMD or user properties.
MQMAP_COMPAT: Properties are transmitted in a format compatible with previous Multicast clients.

MsgHistory (MQCFIN): Message History (parameter identifier: MQIACH_MSG_HISTORY).
The amount of message history, in kilobytes, that is kept by the system to handle retransmissions in the case of NACKS.

NewSubHistory (MQCFIN)

New Subscriber History (parameter identifier: MQIACH_NEW_SUBSCRIBER_HISTORY).

Controls how much historical data a new subscriber receives. The value can be any of the following values:

MQNSH_NONE: Only publications from the time of the subscription are sent.
MQNSH_ALL: As much history as is known is retransmitted.

PortNumber (MQCFIN): Port Number (parameter identifier: MQIACH_PORT).
The port number to transmit on.

Type (MQCFIN)

The type of the communications information definition (parameter identifier: MQIA_COMM_INFO_TYPE).

The value can be:

MQCIT_MULTICAST: Multicast.