2355: TN3270 Enhancements.

This document describes a protocol that more fully supports 3270 devices than do traditional tn3270 practices. Specifically, it defines a method of emulating both the terminal and printer members of the 3270 family of devices via Telnet; it provides for the ability of a Telnet client to request that it be assigned a specific device- name (also referred to as "LU name" or "network name"); finally, it adds support for a variety of functions such as the ATTN key, the SYSREQ key, and SNA response handling.