Ref: 99980065
Title: Questions and Answers SNA products
Date: 6/1/86

Copyright 3Com Corporation, 1991.  All rights reserved.

Since the release of the SNA products, several questions have
been raised.  In this issue, Bridge published the most commonly
asked questions and provided the answers.

Q:  Does the CS/1-SNA support half-duplex communication?

A:  Yes, the CS/1-SNA currently supports half-duplex
communication for switch lines and full-duplex communication
for leased lines and direct connections.  The duplex
selection is performed with the system generation program.


Q:  Can a virtual port in the CS/1-TCP-SNA be assigned an
Internet address?

A:  No.  In order to make a connection to the IBM host via the CS/
1-TCP-SNA, virtual ports must be grouped in the rotary port.
The Internet address can then be defined for that rotary port
via the system generation program.


Q:  Does the CS/1-SNA support the automatic logout when the
terminal session is disconnected before the IBM host
application logout procedure is performed?

A:  Yes.  If the "Host application logout" option is specified as
SUPPORT in the CS/1-SNA system generation program, the IBM
host will perform the regular application logout after the
session between the terminal and the local Communications
Server is disconnected.


Q:  When a connection to the CS/1-SNA is established and if the
modem line is down, does the terminal emulations menu still
display on the screen?

A:  Yes.  The terminal emulations menu is generated by the CS/1-
SNA, not by the host.  Therefore, if the modem line between
the CS/1-SNA and the host is down, this menu still displays
on the screen.


Q:  If there duplicated Internet address detection on the CS/1-
TCP-SNA or any of Bridge's TCP/IP products?

A:  No.  If the port Internet address is mistakenly defined the
same as the server Internet address, the port will hang when
a connection is established to the port.


Q:  Does the CS/1-SNA support NRZ and NRZI links?

A:  No.  The CS/1-SNA does not support NRZI but an NRZ link can
be connected to the CS/1-SNA via a converter.

