Re: Question on LU6.2 trace - Request Header flags

[Shmuel Metz (Seymour J.)]

In <[EMAIL PROTECTED]>, on 07/18/2005
   at 10:19 AM, Mauri Kanter <[EMAIL PROTECTED]> said:

>If the bit is ON there seems to be 2 possibilities ... An FM header
>or an NS RU.
>Is there a way to know which one of the cases we are talking about
>?

You need to look at the RU type separately. Also, you want to examine
only those R/R Units in your LU-LU session.
 
-- 
 Shmuel (Seymour J.) Metz, SysProg and JOAT
 ISO position; see  
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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Re: Question on LU6.2 trace - Request Header flags

[Mauri Kanter]

On Mon, 18 Jul 2005 12:05:36 -0500, Chase, John <[EMAIL PROTECTED]> wrote:

>> -Original Message-
>> From: IBM Mainframe Discussion List On Behalf Of Paul Hanrahan
>>
>> There used to be manuals that detailed the TH, RH and RU in
>> gruesome detail.
>
>"SNA Formats" was one; the other I knew about was "SNA Network Products
>Formats" which was a "licensed publication" last time I saw one.
>
>-jc-
Hi:

I have access to Resource Link ... Any chance that the above mentioned book
appears there ? I did not find such under the z/OS 1.4 licensed
documentation 

Thanks. Mauri.

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Re: Question on LU6.2 trace - Request Header flags

[Chase, John]

> -Original Message-
> From: IBM Mainframe Discussion List On Behalf Of Mauri Kanter
> 
> >> -Original Message-
> >> From: IBM Mainframe Discussion List On Behalf Of Paul Hanrahan
> >>
> >> There used to be manuals that detailed the TH, RH and RU in gruesome 
> >> detail.
> >
> >"SNA Formats" was one; the other I knew about was "SNA Network Products 
> >Formats" which was a "licensed publication" last time I saw one.
> >
> >-jc-
> Hi:
> 
> I have access to Resource Link ... Any chance that the above 
> mentioned book appears there ? I did not find such under the 
> z/OS 1.4 licensed documentation 

A search of the z/OS Internet Library

gave the following:

"SNA Formats"


"SNA Network Products Formats" was not found.

-jc-

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Re: Question on LU6.2 trace - Request Header flags

[Mauri Kanter]

Paul/John

Thank you for your prompt answer. I do have SNA formats. I will try to
search for the other books.

For the time being I will compare the 2 bytes of ru+1 for x'0502', and if
yes, I will check if it is x'0502FF', to be sure that it is the attach
request ... I hope I will not find in the future that the x'0502FF'
sequence may appear when the bit in the RHFI bit is on, and it is not an
attach 

I'm grateful for your help ... I will try to find the licensed book more
thouroughly in resource link.

Mauri.

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Re: Question on LU6.2 trace - Request Header flags

[Chase, John]

> -Original Message-
> From: IBM Mainframe Discussion List On Behalf Of Paul Hanrahan
> 
> There used to be manuals that detailed the TH, RH and RU in 
> gruesome detail.

"SNA Formats" was one; the other I knew about was "SNA Network Products
Formats" which was a "licensed publication" last time I saw one.

-jc-

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Re: Question on LU6.2 trace - Request Header flags

[Paul Hanrahan]

There used to be manuals that detailed the TH, RH and RU in gruesome detail.
There was an orange world trade center book that detailed the 3 byte RH in
all it's glory.  I always ended up looking in the RU for the type of FMH
though I don't recall why. - Paul Hanrahan

-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf
Of Mauri Kanter
Sent: Monday, July 18, 2005 11:19 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Question on LU6.2 trace - Request Header flags


Good Morning list !

Supposing I get a message whose request header (ISTRH) shows that the RHFI
bit is ON

 BROWSESYS1.MACLIB(ISTRH) Line 0069 C
 Command ===>  Scroll
RHFI EQU   B'1000' FORMAT INDICATOR:
*  (B) 0=NO FM HEADER, OR
*CHARACTER CODED NETWORK
*SERVICES RU
*  (B) 1=FM HEADER INCLUDED, OR
*FIELD FORMATTED NETWORK
*SERVICES RU

If the bit is ON there seems to be 2 possibilities ... An FM header or an NS
RU. Is there a way to know which one of the cases we are talking about ?

I mean, if I'm interested to obtain from a trace all the FMH-5 related to
the attachment of an LU6.2 transaction, is my only choice to check for
x'0502FF' at the ru+1 ?

I checked the NS RUs and it seems there is none containing the x'0502'
sequence ... Can I trust this forever ?

Thanks in advance for your help. Mauri.

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