[comp.dcom.sys.cisco] DECnet Transition Gateway

kozel@milano.cisco.com (Edward R. Kozel) (11/06/90)

FOR IMMEDIATE RELEASE

CISCO INTERNETWORK ROUTERS ADD 'TRANSITION GATEWAY' FEATURE ALLOWING
COMMUNICATION BETWEEN DECNET PHASE IV, PHASE V HOSTS


MENLO PARK, Calif., Nov. 6, 1990 -- The ability to communicate between comput
ers supporting Digital Equipment Corporation's DECnet Phase IV protocol and
those supporting DECnet Phase V has been added to cisco Systems' family of
internetwork router/bridges.

This "transition gateway" capability will be a standard feature of cisco
routers shipped beginning this month.  It is the second step in a three-part
program which began in May 1990 with the ability to allow communication
between DECnet Phase V host computers using the ES-IS and IGRP IS-IS
protocols.  The program will be completed by mid-1991 when the OSI IS-IS
dynamic routing protocol becomes a defined industry standard and is
implemented in the cisco routers.

To permit communication between DECnet Phase IV and Phase V devices, the
transition gateway feature disseminates routing information with both the
Phase IV and IGRP IS-IS routing protocols.  In addition, packets from either
protocol may be translated to the packet format of the other protocol when
necessary.

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The Phase IV-Phase V transition gateway is a standard feature included at no
extra cost with cisco router/bridges shipping this month.  It is available as
a software upgrade for previously installed units.

Cisco Systems, Inc., is the leading supplier of high-performance, multimedia
and multiprotocol internetworking products, including routers, bridges,
terminal servers and network management software.  Cisco technology can be
used to build wide-area networks linking an unlimited number of geographically
dispersed LANs.  Cisco is publicly traded over-the-counter under the NASDAQ
symbol CSCO.