Communication

Connect Retry Count (retrycnt)

This field specifies the retry count for reconnection when the socket connection has failed.

When '0' is set, reconnection is not carried out.

Connect Retry Interval (retrytime)

This field specifies the retry interval for reconnection in seconds when the socket connection has failed. In addition, the field specifies the wait time before auto resending.

Auto Resend Retry Count (sockerr_autoretry)

This field specifies the number of attempts to execute auto resending when a communication error occurs during the Send processing or the Receive processing.

When '0' is set, auto resending is not carried out.

Socket Read Timeout (socktime)

This field specifies timeout interval in seconds where there is no response from remote host during socket communication. If the processing reached time-out, HULFT regards the state as a communication error, and cuts off the communication. Because the field specifies a time range to detect errors in network, specify suitable value for the network in use.

Socket Buffer Size for Data Sending (sndsocksize)

This field specifies the sending size that is applied in socket communication.

When you set '0,' HULFT applies the value configured in the environment (operating system) to carry out socket communication.

Note

If the maximum socket buffer size upper value for the operating system is changed to a value smaller than HULFT Socket Buffer Size for Data Sending (sndsocksize) after the Send daemon is started, the Send processing will end unsuccessfully.

Socket Buffer Size for Data Receiving (rcvsocksize)

This field specifies the receiving size that is applied in socket communication.

When you set '0,' HULFT applies the value configured in the environment (operating system) to carry out socket communication.

Note

If the maximum socket buffer size upper value for the operating system is changed to a value smaller than HULFT Socket Buffer Size for Data Receiving (rcvsocksize) after the Send daemon is started, the Send processing will end unsuccessfully.

Observe Timeout (obssocktime)

This field specifies the timeout for a response to a request in the Observe process in seconds.

When it reaches to timeout, HULFT regards the state as no reply, and terminates the Observe process.

IP Version (ipversion)

This field specifies the version of the IP protocol for socket communication.

4:

Use IPv4 when connecting to the remote host; use only IPv4 when being connected

4/6:

Use IPv4 first when connecting to the remote host, try with IPv6 if connection fails; use both IPv4 and IPv6 when being connected

6/4:

Use IPv6 first when connecting to the remote host, try with IPv4 if connection fails; use both IPv4 and IPv6 when being connected

6:

Use IPv6 when connecting to the remote host, use both IPv4 and IPv6 when being connected

Framed Message Transfer Type (proctranstype)

Specify a data transfer method.

Error Detection Priority Mode:

This option transfers data in Error Detection Priority mode, at the time both of sending and receiving. The data transfer method, the timing for the error detection, and the timing of cancelation acknowledgment are the same as those of HULFT lower than Ver.7.

Send Speed Priority Mode:

As for sending, HULFT operates in Transfer Speed Priority mode, while the application operates in Error Detection Priority mode for receiving. In Send Speed Priority mode, utilization of resources at the time of sending varies more widely than the conventional transfer method of HULFT lower than Ver.7, which may cause delay in the timing of error detection and the cancelation acknowledgment. When the HULFT on the receiving side is not in Transfer Speed Priority mode, HULFT operates in Error Detection Priority mode.

Receive Speed Priority Mode:

As for receiving, HULFT operates in Transfer Speed Priority mode, while the application operates in Error Detection Priority mode for sending. In Receive Speed Priority mode, utilization of resources at the time of receiving varies more widely than the conventional transfer method of HULFT lower than Ver.7, which may cause delay in the timing of error detection and the cancelation acknowledgment. When the HULFT on the sending side is not in Transfer Speed Priority mode, HULFT operates in Error Detection Priority mode.

Send and Receive Speed Priority Mode:

This option transfers data in Transfer Speed Priority mode, at the time both of sending and receiving. In Send and Receive Speed Priority mode, utilization of resources at the time of sending and receiving varies more widely than the conventional transfer method of HULFT lower than Ver.7, which may cause delay in the timing of error detection and the cancelation acknowledgment. When the HULFT on the other side is not in Transfer Speed Priority mode, HULFT operates in Error Detection Priority mode.

Refer to Linux/AIX Administration Manual for each mode of data transfer method.