Perhaps it would be better if I explain what we have.   We use the BMC suite of products including the Terminal Address Space (an alternate access method I think they call it).  Within TAS, there is a LOGON UCB(B400) parameter.  The B400 corresponds to the OSA-ICC definition.  We have a Visara 500LX box that contains a 3270 session with the same LUNAME and CUADDR as the OSA-ICC definition (B400). We do not have a LBUILD for B400 CUADDR anywhere in VTAM.  I expected to see one however.    I assume then that the TAS is doing something under the covers and as such VTAM doesn't need an LBUILD for B400.  We do have LBUILDs for other B4xx addresses (but they don't use TAS, they are for TSO).

On 11/16/2023 5:10 AM, Radoslaw Skorupka wrote:
W dniu 16.11.2023 o 01:47, Michael Babcock pisze:
We have an OSA-ICC connection set up as a 3270 session type.   The LU Name in that definition is TERM140.  The CUA is B400.    We have a 3270 session
defined with the proper IP and the same LU Name of TERM140. This all
works as expected.  My question is that I thought a VTAM APPL with an
LUNAME of TERM140 was required but I do not see a TERM140 defined in VTAM at all.   I’m not a network guy.   Since this is working, I assume it’s not
required.   Can someone enlighten me?

In simple words, LUNAME used in OSA-ICC session definition and emulator - it does NOT exist in any VTAM or TCPIP configuration. Instead, VTAM use device number (devnum), which is in turn not used in emulator session. However OSA-ICC session ties devnum with LUNAME. Note: the same devnum can be used by different LPARs and every LPAR has its own console/terminal. It is not shared, just "duplicate" devnum. However OSA-ICC use devum *and* MIF and CSS to uniquely identify the device.


----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN

Reply via email to