1. Whats hot in networking? S. Keshav

2. Internet architecture Access Enterprise/campus/local ISP Wide area/backbone ISP

3. Access Evolution –28.8 -> High speed access ADSL bonded modems cable modem wireless access

4. Enterprise/campus Need capacity to link multiple workgroups Evolution –Hub/token ring -> hub/switch –IP over ATM -> fast IP routers –Firewalls Server architectures –cluster solutions

5. Wide area Proliferation of backbones –http://www.caida.org/Tools/Mapnet/Backbones/ Dark fiber + routers = $$$ –Worldcom Evolution –slow routers -> ATM -> fast routers

6. Issues Quality of service/pricing Management Multicast DCOM Security

7. QoS/pricing Can’t have QoS without pricing –(at least in a public network) Per-flow QoS is expensive, hard to bill, and probably infeasible in the near term Macroscopic QoS –choosing aggregates –capacity planning

8. Management Key to get QoS in legacy in future networks Not well studied Need better tools –performance monitoring –problem detection and correction (multiple time scales) –configuration

9. Multicast Will never be dominant workload –that’s why RSVP is wrong Driven by audio/video multicast Many competing solutions

10. DCOM Distributed component object model Changes the way the network is used –DCOM is universal ‘middleware’ Effect on traffic is unknown

11. Security Hard to define, and harder to implement Hot topic

12. My research areas Network performance management Centralized approach to multicast Next-generation TCP Simulation