1. Building Embedded IP
Raffi Krikorian
Physics and Media

2. Building Internet0
Traditional networking hardware research focuses on bigger and faster pipes (Internet2)
We focus on bit-dribbling hardware

3. Bridging the bandwidth divide
Bringing IP to the leaf node
Revisiting hardware transports and redesigning logical transports
Cheap, low bandwidth IP (a level below Ethernet)

4. Going really small
Distributed scalable system – no central point of control/servers are “bad”
Devices own their data and own their threads
Self organizing
Growing

5. Building the first embodiment of small things
RS-485 communication
mature industrial practice
no active joints
media access costs pennies
PIC microcontrollers
built in UARTs
plenty of space for networking code
just a few dollars

6. Building more small things
Different physical transports
DSSS over powerlines
Wireless RF
Ultrasonic
Revisiting old transports – slowing them down makes them a lot more accessible

7. Cramming bits is nothing new
“Delayered” software stacks
ARP, IP, ICMP, UDP, TCP – IPv4 compliant in 2K code
HTTPd 0.9 server – 1K code

8. Naming, Classifying, Communication
IDs for each device – unified or multiple
For today, use Zeroconf – sub-DHCP
For tomorrow, possibly use IPv6 as the unique address through mini-routing?
Schema for identifying devices
Communication standards

9. Programming and Coordinating a mass of devices
Programming arbitrary massively parallel distributed systems is hard, building simple ones is easier
These systems exhibit
Scale complexity
Interaction complexity
Minimal resources
Spatial relations

10. Building higher level systems
Make it easy to cause complex behavior to occur
“Google-like” services
Hive
JXTA
Make it simple for complex behavior to emerge

11. How do you test all of this?
First test installation was in Barcelona, moving towards second …
CBA’s new home is first permanent testbed