Ernst & Young reports that the use of a variety of techniques to secure distributed information systems that can be accessed over the
public data network has not kept pace with technology.
I talked to network managers responsible for a wide variety of networks, including a regional NSF Network serving several hundred locations throughout eight states, a
public data network from a telco, several large university networks, a professor of telecommunications at a major university, and a commercial bank.
EWP search requests are routed from our PCs over a
Public Data Network to DirectoryNet's National Gateway Center.
In our medium-size facilities, we have dedicated 9.6 kb/s lines into either Infonet or a national PDN (
Public Data Network).
Infonet also provides interoperability between InfoLAN and its own worldwide X.25
public data network. Users can choose custom virtual, hybrid or private solutions with varying network topologies, geographic coverage and port speeds.
Addressing the need for broadband links, Bellcore Vice PResident Richard Caruso says he believes the answer lies in
public data network services, combining both frame relay and SMDS (switched multi-megabit data service) as complementary rather than competing options.
In 34 of these, where the local
public data network is based on Tymnet technology, enhanced data services similar to GNS will be available.