Kolloquiumsvortrag ================== Am Montag, dem 02.12.2013 spricht Professor Dr. Andreas Mauthe, Lancaster University, über das Thema Content centricity as central paradigm in computer networking The
optimisation
of
content
delivery
over
the
Internet
has
been
a
research
interest
for
some
time
and
has
resulted
in
Content
Delivery
Network
(CDN)
research.
This
initial
work
focused
on
how
content
can
be
actively
placed
closer
to
the
actual
user
in
order
to
reduce
access
times
and
latency.
While
this
research
has
resulted
in
successful
products
and
services
(e.g.,
AKAMAI)
it
only
deals
with
one
aspect
of
content
delivery;
others
such
as
addressing,
host
mobility,
resilience,
etc.
are
not
covered.

Hence
the
concept
of
Content
Networks
(CN)
has
extended
CDN
research
in
order
to
also
comprise
such other
aspects.
One
central
element
of
this
research
is
the
recognition
that
users
are
ultimately
interested
in
the
content
(or
a
piece
of
information)
and
not
any
specific
copy.
This
resulted
in
research
on
content
addressing
that
allows
general
content

access,
i.e.,
the
goal
is
retrieving
content
(or
information)
rather
than
routing
of
packets
between
end
hosts.
This
is
called
Content-Centric
respectively
Information-Centric
Networking
(CCN/ICN).

A
further
aspect
is
the
actual
delivery
of
content
where
at
present,
once
a
delivery
is
requested,
it
will
be
executed
using
one
specific
delivery
channel.

In
this
presentation
we
are
looking
at
the
background
and
motivation
of
Content
Networking.
Subsequently
the
concepts
of
CCN/ICN
are
looked
at
more
closely
including
CCN/ICN
addressing,
but
also
more
controversial
topics
such
as
the
advantages
and
disadvantages
of
CCN
caching.
Then
JUNO
is
presented
as
an
example
of
a
content-centric
middleware
that
allows
to
incrementally
introduce
content-centric
principles
into
a

networked
system.
The
presentation
concludes
with
a
look
ahead
on
further
research
challenges
in
Content
Networking. Der Vortrag findet wie üblich um 17:15 h in Raum A 5, 6 C012 statt. Alle sind dazu herzlich eingeladen. -- Prof. Dr. Wolfgang Effelsberg Tel: +49 621 181 2600 Praktische Informatik IV Fax: +49 621 181 2601 University of Mannheim effelsberg(a)informatik.uni-mannheim.de 68131 Mannheim, Germany pi4.informatik.uni-mannheim.de/~effels