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Transcript
Virtualization Group FIND Meeting Does Virtualization aid Security? • Depends what you build on top – We’re only providing mechanisms, not solutions • Better: – – – – Some level of isolation Control set of users Better defaults, reduce exposed vulnerabilities Baked-in forensic capability; liability determination • Worse: – Lots of vulnerabilities in optics – Unclear what the TCB is---finger pointing – Amplifies attack power based on hierarchy Do Sensors need Virtualization? • Just build metanetwork specialized to sensors • Useful for wireless sensor networks? – Same arguments apply as regular IP – Yes for GENI; not operationally? • Interface between wireless/wired – Rich specification for optical network setup – Depends on how fast the setup/teardown needs – May hide changes in physical topology--e.g., delay Suitability for Tomorrow • Increasingly programmable components – Virtualization is a nice way to harness – Need to share? Enough to hand out individually? – Hard to envision technology cost being a constraint; increasingly less important • Speeds surpass ability to source/sink – Need to divide; different interfaces (SAN, etc.) • Isolation – Is it an economic issue or a technical one – Horizontal vs. vertical markets – Cloud-based services; distributed management Active Networks? – What does it mean to do things ‘in the network’ – Does topology matter? • It does for data synthesis • Maybe for location based services • But BW is free, so we can tunnel things lots of places pretty darn easily – Is a middlebox core or edge? – Active network struggle all over again?