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Next generation network transition
Allied Telesis solutions offer the same
levels of performance, high availability
and manageability for both IPv4 and IPv6
networks. As you move from a current
IPv4 network to a next generation
IPv6 network, some transition will be
required to ensure the new network
will communicate with other local and
remote devices and systems. Allied
Telesis provide two mechanisms to
facilitate this transition; dual stack and
tunnelling.
With dual stacking, IPv4 and IPv6
can co-exist seamlessly on the same
equipment, using equivalent routing
protocols, within the same topology.
An organization can be condent that
the network will support their transition
from IPv4 to IPv6 at a pace that suits
them. Their IPv6 network can be
overlaid on the same equipment, in the
same physical and logical layout, as their
original IPv4 network.
The equipment can be managed equally
by IPv4 or IPv6, enabling a smooth
transition of the network management
infrastructure as well.
Tunnelling allows IPv6 trafc to be
encapsulated within IPv4 packets. This
means an organization wishing to move
to IPv6 can do so even if their Internet
and other remote connectivity still
require IPv4.
As modern networks have grown in
both size and functionality, dynamic
routing protocols have been employed
to manage trafc paths and load across
the various devices and components
of the network. Newer versions of
these dynamic routing protocols have
been created to support the increasing
prevalence of IPv6. For example OSPFv3
is an update on OSPFv2 to support IPv6
networks.
Allied Telesis IP transition technologies,
and support for the latest versions
of commonly used dynamic routing
protocols, ensure an easy transition to
next generation networking, without
having to change infrastructure or
update key networking components.
In particular, the area layout and subnet
allocation used for IPv4 with OSPFv2
can be overlaid with an equivalent
structure for IPv6 with OSPFv3.
Thereby, the logical network structure
that has been established for an existing
IPv4 network can seamlessly carry over
to the coexisting IPv6 network as
shown in diagram 1 on page 4.
Allied Telesis creates off-the-shelf
switches and routers with feature-
rich, high-performance IPv4 and
IPv6 implementations in the same
box.
High Availability IPv6 |3