Host Connection Program Guide and Reference
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• For TCP/IP attachment using the Telnet 3270 function, the following are supported:
– Token-Ring High-Performance Network Adapter
– Ethernet High-Performance LAN Adapter
– X.25 Interface Co-Processor/2
– Fiber Distributed Data Interface (FDDI) Connectivity
– Block Multiplexer Channel Connectivity
– ESCON Channel Connectivity
– Serial Optical Channel Converter Adapter
Users at a remote location may access the services and facilities of a System/390 host.
Depending on the network topology and controller requirements, the connection to the
System/390 host may be as follows:
• SNA T2.1 for LU types 1, 2, and 3 with the following prerequisite for the SNA Services
licensed program:
– LAN (Token-Ring or Ethernet) and WAN (X.25 and SDLC) access using 37X5 or 3174
communication controllers.
• DFT coaxial connection when attaching to a 3X74 or the equivalent:
– For SNA mode, display session (LU type 2) is supported.
– For non-SNA mode, both display and host-addressable printer sessions are
supported.
• TCP/IP connection for display session using the Telnet 3270 option:
– LAN (Token-Ring, IEEE802.3, Ethernet, and IBM Fiber Distributed Data Interface
(FDDI) Connectivity) access using the appropriate 8232 or 3172 Interconnect
Controller
– WAN (X.25) access using the 37X5 controller
– Direct attachment using the Block Multiplexer Channel Connectivity or the ESCON
Channel Connectivity
– Serial Optical Channel Converter attaching to an NSC DX router hyperchannel
attachment to a System/370 processor
Programming Requirements
HCON requires AIX (5756-030) and runs on the POWERstations. HCON requires one of
the following System/390 operating system environments:
• VM/SP CMS
• VM/XA CMS
• MVS/SP TSO/E
• MVS/XA TSO/E
• CICS/VSE
• CICS/MVS
• VSE/SP Version 4
• VSE/ESA Version 1.3
For SNA T2.1 connection to the host, VTAM Version 3.2 or above is recommended.
HCON requires one of the following programs be installed on the System/370 or
System/390 host to support file transfer:
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