Date: Thu, 21 Nov 1996 21:53:14 GMT Server: NCSA/1.5 Content-type: text/html
KEITH (G ITAE) KIM
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I believe in the phrase, "The Simpler, The Faster", especially for the switch (router) architectures. The higher the network bandwidth, the firmer I believe in it -- it does not make much sense to me that, messages stay longer in the switches (routers) while they move faster on the links - no real advantage!
I also believe in `feedback(closed_loop)-based flow controls' even under broadband networks, since it provides some form of information on the network, whether the information is old or new. Recent studies have revealed that the observed network traffic is self-similar, i.e., the pattern of network traffic is invariant (to some extent) on the time scales, which signifies that the network traffic is long-term predictable. The utilization of this notion goes against ancient Egypt to control irrigation system for preventing flooding. I speculate that the idea of using history(i.e., feedback) to predict the future (i.e., congestion) might provide a nicer solution for flow control, especially in high-speed networks, if the feedback information is used right. After all, we live in the world with history that repeats itself -- another self-similarity -- and people learn tomorrow from history.
"On the Relationship Between File Sizes, Transport Protocols,
and Self-Similar Network Traffic"(with Kihong Park and Mark E. Crovella). To be appeared in ICNP'96
extended version (technical report TR-96-016); condensed version (as appeared in ICNP '96)
"The Effects of Traffic
Self-Similarity on TCP Performance," (with Kihong Park and Mark E. Crovella)
Boston University Computer Science Department, April 1996.
postscript version.
Boston University Computer Science Dept., 111 Cummington St, MCS-217 Boston, MA 02215 Voice: (617) 353-8924 FAX: (617) 353-6457 Email: kgtjan@cs.bu.edu
Updated On: August 19, 1996.