VTAM


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VTAM

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VTAM

(Virtual Telecommunications Access Method) Also ACF/VTAM (Advanced Communications Function/VTAM), it is software that controls communications in an IBM SNA environment. VTAM usually resides in the mainframe under MVS or VM, but may be offloaded into a front end processor that is tightly coupled to the mainframe. It supports a wide variety of network protocols, including SDLC and Token Ring. VTAM can be thought of as the network operating system of SNA.
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References in periodicals archive ?
However, in order to take advantage of this connectivity, networks had to conform to IBM'S Systems Network Architecture (SNA) protocol, and IBM'S VTAM software had to be installed on all hosts.
This requires the data request to pass through the Net Gateway and the SNA Plus modules on the HP server, traverse the SNA network, and connect to the IBM mainframe via VTAM (the network front-end interface).