(VTAM) On an SNA (Systems Network Architecture) network, this application provides access to shared information.
The mainframe communications foundation that allows multiple systems, users and printers on the mainframe to interconnect and interoperate. VTAM also has the capability to communicate with other protocol networks, such as the TCP/IP network.
n. IBM software that controls communication and the flow of data in an SNA network by providing the SNA application programming interfaces and SNA networking functions. An SNA network includes subarea networking, Advanced Peer-to-Peer Networking (APPN), and High-Performance Routing (HPR). Beginning with Release 5 of the OS/390 operating system, the VTAM for MVS/ESA function was included in Communications Server for OS/390; this function is called Communications Server for OS/390 - SNA Services.
An IBM software routine: the virtual access method for 3270 systems.
An IBM standard for software that runs on the host mainframe computer and works with the Network Control Program to establish communications between the host and the cluster controllers. Among other things, VTAM sets the pacing and logical unit (LU) characteristics.
An IBM-licensed program that controls communication and the flow of data in an SNA network. It provides single-domain, multiple-domain, and interconnected network capability.