Another artifact under development is SoNIC Software-defined Network Interface Card , which provides precise and reproducible measurements of an optical lambda network. Cornell is one of the few institutions world-wide where brand new research operating systems are being actively developed.
The Nexus enables a new class of applications that can provide unprecedented confidentiality and integrity guarantees; as a demonstration, they have built a social networking application, called Fauxbook, where the users can be assured that their information can not be leaked, even with Fauxbook developers acting as adversaries.
Hakim Weatherspoon is currently working on multi-core extensions to the Linux operating system, as well as file system mirroring across high bandwidth, high latency links FAST Cornell faculty have done extensive work in the Peer-to-Peer networking area, ranging from file sharing to media streaming to network monitoring. Sirer's Credence system NSDI '05 for determining authentic content on peer-to-peer systems was deployed on the Gnutella network and led to a large-scale user study.
The Karma system explored peer-to-peer currencies long before Bitcoin. Birman's Kelips system was the first one-hop DHT, and his Bimodal Multicast protocol was unusual in using P2P communication as a tool in a reliable multicast protocol. Weatherspoon designed and implemented the Antiquity system , a secure P2P storage facility Eurosys Besides the topics mentioned above, the systems faculty is also actively involved with cross-cutting research involving Security , Programming Languages , Computer Architecture , and Theory.
One example of cross-cutting research is the Meridian SIGCOMM'05 project, where Sirer and his group applied some of the insights from Jon Kleinberg's theoretical work on small-world networks to peer-to-peer systems. Meridian, and its successor, Cubit, can route queries to their destinations efficiently over a lightweight overlay, providing new search functionality not possible with pereceding peer-to-peer systems.
The Cubit plugin for Vuze was downloaded by more than people. Another example of cross-cutting research is the work Birman's group has done on Web 2. This effort looked at the challenges of using Web 2.
Have a look at the demo. The Systems Group at Cornell prides itself on its collegial internal environment. Our Systems Lunches, where professors and graduate students get together every Friday to have lunch and discuss recent, cutting-edge papers in the field, draws an attendance of 40—60 people and has been adopted by many other institutions.
And Cornell's Systems Lab, a large collaborative space with wall-to-wall whiteboards, projectors, sound systems and work areas for up to three dozen people, has served as a crucible where people hack together on projects and design new systems. Systems and Networking You are here Home Research. News Bitcoinist reports on Chain, Inc.
Failure detectors : perfect failure detectors, eventually perfect failure detectors, leader elections with failure detectors.
Distributed Networks: Intelligence, Security, and Applications - CRC Press Book
Clock Synchronization : Physical clock synchronization, logical clock synchronization. Ordering events : happened-before relation, vector and logical clocks. Application of Logical Time: Causal Communication. T1, slides pdf , " Fundamentals of Distributed Computing: A practical tour of vector clocks ". Registers: non-atomic operations, specification safe, regular, atomic , basic protocols.
Consensus : definition, FLP impossibility result, non-uniform flooding consensus, uniform flooding consensus, rotating coordinator protocol. Application of consensus: Total order protocol, non-blocking atomic commitment. Specification and Protocols : non-uniform regular Reliable Broadcast, uniform reliable broadcast, Causal Broadcast, Total Order Broadcast, hierarchy of total order broadcast. Probabilistic broadcast.
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