Large Scale Networks and Future Network Architectures -session summary- Jim Kurose Department of Computer Science University of Massachusetts Amherst MA

Architecture: What did we hear?  focus on control  signaling  complexity  data plane interaction  routing  cross layer  QoS/multimedia  various frameworks advocated: no consensus  protocol need  Role-based architecture What didn’t we hear?  optical nets  o-core, e-edge  grid/e-science  GMPLS, circuits on- demand  management, AAA  security  Reliability  Economic incentives and tradeoffs

Architecture: comments heard  system complexity: component versus system complexity  bigger picture  new inter/intra domain algorithms  beyond Internet  Internet just one network instance  But it is “the” network of today, and needs our research efforts  Different size/type of adhoc  a place for network architects?  Internet protocols versus pverall architecture  sensor nets:  clean slate?  lessons from the past?  sensor != wireless  need for new transport protocols  ad hoc, sensor, MM,

Education: comments heard  what should we be teaching our grad students  FYI: SIGCOMM education workshop  internet-inculcation of students  learn from the past  SS7, ATM, SNA, DECNET, ….