Future Directions

Wireless Internetworking

• Automatic "vertical" handoffs
• Wide-area roaming with local resource allocation to visiting mobile hosts
• Extension of reliable transport concepts to multi-hop, cellular data, and satellite subnetworks

Mobile Applications Support

• Complete specification of proxy architecture
• Proxy approach for integrating heterogeneous videoconferencing environments
• Hierarchical proxies to manage web caches: prefetching plus cache validity management via integration with web crawlers/indexers