Solutions and Research Directions
solutions addressing mobility:
n flexible directory services to enable mobile to find location-
dependent services, often based on “shopping” or negotiation:
scaleable, fault-tolerant architecture (exploit communication
locality, replicate directory data, weakened consistency
semantics: allow directory info to go stale as long as we can
improve on suboptimal routes during connection)
brokerage service (e.g.: trading in ODP)
accounting service: mediate cost accounting between mobile
client and servers
rebindable service interfaces (switch service providers “on-line”)
n ubiquitous security and authentication (IPv6 will go a long way
towards providing this goal)