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-----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Martin Kline Sent: Wednesday, September 03, 2008 10:24 AM To: IBM-MAIN@BAMA.UA.EDU Subject: VTAM question: Where does TGN=21 come from? I've been all over the manuals, and I don't find this anywhere. It appears that certain VTAM links, CTCs and others, between LPARs within and without of the same sysplex, get assigned a default TGN of 21. Why? Shouldn't this be documented? More importantly, how does this affect PATH definitions, which contain VRs, and ER/TGN combinations, plus the COS tables that point to VRs, and the logmodes that point to COS tables? Please excuse my ignorance on this. I haven't dealt with VTAM for over 20 years. Now, I've specified all the (apparently) valid TGNs we had defined (not including TGN 21), and I find some logmodes that can no longer be used between networks, while other logmodes still work. The logmodes are available on all systems, but it appears that there are no routes available for the logmode-selected COS entries. Maybe I'm making this more difficult than necessary. The logmode entries worked previously, and TGN 21 was never included in the path definitions. Is there some default that allows any and all TGNs to be used by a given COS? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
