Thomas Kunz
Systems and Computer Engineering
46
Potential problems
nQuality of service
–Today‘s
Internet is best-effort
–Integrated
services did not work out
–Differentiated
service have to prove scalability and manageability
–What
about the simplicity of the Internet? DoS attacks on QoS?
nInternet protocols are well known…
–…also
to attackers, hackers, intruders
nsecurity by obscurity does not really work,
however, closed systems provide some protection
nReliability, maintenance
–Open
question if Internet technology is really cheaper as soon as high reliability (99.9999%) is required plus all features are
integrated
nMissing charging models
–Charging
by technical parameters (volume, time) is not reasonable
–Pay-per-application
may make much more sense
nKiller application? There is
no single killer application!
–Choice
of services and seamless access to networks determine the success