Transcript Virtualization Group

Virtualization Group
FIND Meeting
Does Virtualization aid Security?
• Depends what you build on top
– We’re only providing mechanisms, not solutions
• Better:
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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?