Fujitsu Develops New Technology to Enable Continued Use of IPv4 Services
Tokyo, June 10, 2013 - (JCN Newswire) - Fujitsu today announced that it has
developed SA46T Multiple Service Plane Expansion, which enables the continued
use of IPv4 services, even with the deployment of IPv6. This is an important
solution to the depletion of IPv4 addresses that is resulting from the
increasing prevalence of PCs, servers and other Internet-connected
SA46T Multiple Service Plane Expansion is comprised of three basic
technologies. The first is SA46T, which is technology for backbone networks(1)
that enables IPv4 communications to be transmitted over IPv6 networks. To this
Fujitsu has added two newly developed technologies. One is SA46T-PR, which
enables IPv4 communications over IPv6 on a stub network(2), and the other is
SA46T-PT, which interconnects between the SA46T and SA46T-PR domains. SA46T
Multiple Service Plane Expansion makes it possible to accommodate some 4.3
billion IPv4 services on an IPv6 network and improves scalability in terms of
network size, regardless of physical distance across multiple countries.
Simply by implementing SA46T Multiple Service Plane Expansion on network
equipment and making some simple settings, an IPv6 network can continue to
support existing IPv4 services without interruption, enabling a smooth
transition to IPv6.
A live demonstration of this technology will take place at Interop Tokyo 2013,
running June 12-14 at Makuhari Messe, as part of Interop ShowNet, where
verification tests of SA46T, SA46T-PR, and SA46T-PT will be conducted. This
technology has been nominated for the Best of Show Award.
Currently there is a need for a variety of measures to cope with the depletion
of IPv4 address space. In the future, networks are expected to be configured
exclusively using IPv6, without a dual stack(3). As a result, there is a need
to make services configured around IPv4 compatible with IPv6. In practical
terms, however, it is not necessarily easy to make these services compatible
with IPv6 in a short period of time. As a result, there is a need to enable the
continued use of IPv4 services until migration to IPv6.
SA46T Multiple Service Plane Expansion consists of three basic technologies:
SA46T and the newly developed SA46T-PR and SA46T-PT. Together, these allow the
number of current IPv4 services to be expanded to some 4.3 billion and also
improve scalability in terms of network size, regardless of physical distance
across multiple countries. SA46T, which operates on backbone networks, and
SA46T-PR, which operates on stub networks, both allow IPv4 services to be
transmitted over IPv6 networks. SA46T-PT connects the two to each other, so
that IPv4 services can continue to run over networks that span areas just by
making some simple settings. If, in the future, a network is built that can
only accommodate IPv6, the use of SA46T or SA46T-PR, depending on the
network's size, enable an appropriate set-up, thereby supporting a smooth
transition to the customer's IPv6 network.
(1) Backbone network: A trunk line network that bundles together stub
(2) Stub network: A branch network that connects to endpoints
(3) Dual stack: A network that supports both IPv4 and IPv6
About Fujitsu Limited
Fujitsu is the leading Japanese information and communication technology (ICT)
company offering a full range of technology products, solutions and services.
Approximately 170,000 Fujitsu people support customers in more than 100
countries. We use our experience and the power of ICT to shape the future of
society with our customers. Fujitsu Limited (TSE: 6702) reported consolidated
revenues of 4.4 trillion yen (US$47 billion) for the fiscal year ended March
31, 2013 For more information, please see www.fujitsu.com.
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