Binyamin Dissen wrote: >With IBM planning (planned) dropping support for SNA / 802.3, does that >mean that application code using LU6.2 will stop working? >Or will VTAM continue to support LU6.2 code?
IBM is dropping support for “classic” SNA and pre-SNA “wire” protocols effective with z/OS 3.1 and the machine models after the IBM z16 models, whichever you deploy first. One important reason is that it’s impossible to secure these classic wire protocols without breaking compatibility. The best SNA can do on its own is TDES session-level encryption, and that’s just not good enough (and hasn’t been for a while). IBM is *NOT* dropping support for SNA! Just use Enterprise Extender (EE), also known as SNA over UDP and IETF RFC 2353. Enterprise Extender was first introduced in OS/390 2.7 in 1999 — a quarter century ago. Every z/OS release includes Enterprise Extender in the base operating system. Enterprise Extender can be well secured (we recommend it!), and often you’ll get some performance benefits. It also supports every link type that UDP supports (pretty much everything). SNA also remains available via FICON Channel-to-Channel (CTC) links. FICON CTC links can be well secured using Fibre Channel Endpoint Security. Use z/OS Health Check APAR OA62208 to determine whether your z/OS network configuration needs to be adjusted so that you’re only using Enterprise Extender, other forms of TCP/IP, and/or FICON CTC links. The PTFs for this APAR are available for z/OS 2.3, 2.4, and 2.5. https://www.ibm.com/support/pages/apar/OA62208 ————— Timothy Sipples Senior Architect Digital Assets, Industry Solutions, and Cybersecurity IBM Z/LinuxONE, Asia-Pacific sipp...@sg.ibm.com ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
