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SUMMARY:cISP: A Speed-of-Light Internet Service Provider - Brighten Godfre
 y\, UIUC and VMware
DTSTART:20220721T140000Z
DTEND:20220721T150000Z
UID:TALK171305@talks.cam.ac.uk
CONTACT:Srinivasan Keshav
DESCRIPTION:Low latency is a requirement for a variety of interactive netw
 ork applications. The Internet\, however\, is not optimized for latency. W
 e thus explore the design of wide-area networks that move data at nearly t
 he speed of light in vacuum. Our cISP design augments the Internet’s fib
 er with free-space microwave wireless connectivity over paths very close t
 o great-circle paths. cISP addresses the fundamental challenge of simultan
 eously providing ultra-low latency while accounting for numerous practical
  factors ranging from transmission tower availability to packet queuing\, 
 achieving mean latencies within 5% of that achievable using great-circle p
 aths at the speed of light. Further\, using experiments conducted on a nea
 rly-speed-of-light algorithmic trading network\, together with an analysis
  of trading data at its end points\, we show that microwave networks are r
 eliably faster than fiber networks even in inclement weather. We provide e
 stimates showing the economic value of such networks would substantially e
 xceed their expense.  Finally\, we will discuss how this work can influenc
 e future directions using a combination of multiple communication channels
  -- low latency and high bandwidth -- such as with 5g wireless.\n\nBio:\nB
 righten Godfrey is a professor in the Department of Computer Science at th
 e University of Illinois at Urbana-Champaign\, and a technical director at
  VMware. He co-founded and served as CTO of network verification pioneer V
 eriflow through its 2019 acquisition by VMware. He received his Ph.D. at U
 C Berkeley in 2009. His research interests lie in the design of networked 
 systems and algorithms. He is a winner of the ACM SIGCOMM Rising Star Awar
 d\, the Sloan Research Fellowship\, and the National Science Foundation CA
 REER Award\, and has chaired several conferences including ACM HotNets 201
 4\, the Symposium on SDN Research 2016\, and ACM SIGCOMM 2022.
LOCATION:https://cl-cam-ac-uk.zoom.us/j/97216272378?pwd=M2diTFhMTnppckJtNW
 hFVTBKK0REZz09
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