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Asynchronous Host Sessions › Manage Asynchronous Communication › The Status Line › The Message Parsing Status Display

The Message Parsing Status Display

For all types of asynchronous consoles, the right corner of the status line displays characters reporting the state of message parsing for the current session. Understanding the message parsing status display can help you solve problems when CA Automation Point does not generate the messages you expect.

If you have an ASYNCH console, the message parsing status display contains one character. (These console names designate how CA Automation Point processes the data on the screen. For more information, see the chapter "Establishing Host Sessions.")

The characters you may see are as follows:

Character

Meaning

?

The session has not received any characters since CA Automation Point was started.

I

The session is receiving characters, but CA Automation Point is ignoring them because they do not fit the type of message that was requested. A session running on an ASYNCH console does not display the I character because all characters received by this type of console become part of a message.

H

CA Automation Point is trying to match the incoming characters as the message header for the message types requested. If the characters do not eventually complete the header, the H changes to an I and CA Automation Point resumes searching for the header.

F

CA Automation Point matched the appropriate header and is now filling the message text. Filling continues until the session receives the appropriate termination characters.

R

The session received the appropriate message termination characters and has released the message to the CA Automation Point rules processor.

O

The message being filled, which contained more than 512 characters, was released to the CA Automation Point rules processor because of an overflow condition. CA Automation Point ignores the extra characters (characters 513, 514, and so on) until it receives the beginning of the next message.

T

CA Automation Point was filling a message but did not receive any characters within the corresponding timeout period. The timeout period is ten seconds for ASYNCH consoles. If the timeout period expires, the session forwards the message text that it has already received to the CA Automation Point rules processor.

As message traffic flows between the host and CA Automation Point, the message processing state indicator changes. Normally, the character is I until the session receives a message header. The character changes to H as CA Automation Point checks the header, and then changes to F when CA Automation Point begins filling the message text. When the session receives termination characters, the indicator changes to R and CA Automation Point releases the message.

Normally, the O and T indicators do not appear. If you see either indicator, verify that the corresponding session window is receiving messages intact. Communication problems with the host may cause message text to become fragmented.