On Thu, Jun 06, 2024 at 10:25:21AM -0500, Tom Longfellow wrote: > I have tried to ask this question before but have found it difficult > to put into words. > > Picture three mainframes A, B, and C. > There are terminals owned by A that communicate with applications on C. > There is no direct APPN link from A to C. > B has links to A and C. The sessions from A find C via the "middleman" B. > > I am B and have been tasked with finding all the users in A that are > buzzing through B on their merry way to C or anywhere. > > ------- > I can find no VTAM commands or displays that I can issue on B to > display or count these network transients. > > ----- > The sad news is that B is scheduled for destruction and will leave > this mortal plane. I am trying to be kind and warn the affected that > their lives will change, but first I must identify them > > Any suggestions? Any secret VTAM knowledge that can be applied to > this task?
Do APPN session setups go through the VTAM session management exit on the middle system? https://www.ibm.com/docs/en/zos/2.4.0?topic=routines-session-management-exit-routine A long time ago I did this using ISTEXCAA, but that was VTAM with SSCP connections to other systems. Yes, we were in the middle and going away. This was 1996 or so. How confortable are you and your site with system mods? The code I'm thinking about needs a site dependent hook to hang some permanent storage on -- at least that part would need to be modified. And, of course, ISTEXCAA runs supervisor, key zero. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
