Paul Gilmartin wrote:
I don't understand the architecture here. Is SNA a layer under NJE? How about VTAM?
SNA is indeed a lower layer than NJE. VTAM is a subsystem that implements SNA (e.g., LU2, LU6.2) and non-SNA (e.g., LU0) under z/OS, z/VM, and z/VSE -- not a protocol.
Why has TCP/IP so surpassed SNA?
SNA is/was proprietary while TCP/IP is/was open. -- ----------------------------------------------------------------- | Edward E. Jaffe | | | Mgr, Research & Development | [EMAIL PROTECTED] | | Phoenix Software International | Tel: (310) 338-0400 x318 | | 5200 W Century Blvd, Suite 800 | Fax: (310) 338-0801 | | Los Angeles, CA 90045 | http://www.phoenixsoftware.com | ----------------------------------------------------------------- ---------------------------------------------------------------------- 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