Internet 0Raffi Krikorian

Center for Bits and Atoms

An Internet of devices

1 Bringing IP to the leaf node0 Devices are fundamentally different from general purpose computers

1 Computationally constrained0 Small memory footprints1 Extremely bandwidth limited

The rules are different

1 Configuring and installing devices is harder than computers0 Much higher density of devices/Many more devices

Building a distributed system

1 No single “processor” running the system0 Each device houses information pertinent to itself

1 data0 pointers1 threads

1 Inherent fault tolerance

Current engineering

1 PIC microcontrollers1 plenty of space for networking code0 “black box” IP1 just a few dollars

0 Cheap transports1 RS-4850 powerline1 ultrasonic

One of CBA’s first contributions

1 Have preliminary prototypes0 Has already left the building1 Sun Microsystems has volunteered to chair a sister project to Java for Internet 0

Routing

1 Software P2P systems do “layer 7 routing”

1 Gnutella0 JXTA

0 Trying to get routing/naming to be an intrinsic part of the network (again)

Central control vs. ad-hoc

1 Servers are bad!0 Passive wired devices cannot handle full ad-hoc1 Grand test problem - trying to emerge distributed router