Some problems I would like to work on

1
Some problems I would like to work on

• George Varghese

Disclaimer Reflects purely personal taste
2
State of Networking IMHO

• Routing OK except BGP, multicast
• TCP high BW-delay a problem?
• Switching and high speed OK
• Issues I see
• Network security
• Support for fault tolerance and debugging
• Moe application level support

3
State of Networking IMHO

• Routing mostly OK except BGP, multicast
• TCP high BW-delay a problem?
• Switching and high speed fine
• Issues I see
• Network security
• Support for fault tolerance and debugging
• Moe application level support

4
Network Algorithmics

• Definition hardware, algorithms to combat
  network bottlenecks. Some problems
• Time Synchronization (IEEE 1588) microsecond
  synchronization.
• Flexible high speed parsing. GENI
• More sophisticated statistical estimators for
  measurement and security.
• Power design new algorithms for lookups etc. to
  reduce power

5
Applications and Web 2.0

• From the point of view of the man (kid) on
  the street, we are merely plumbers. More
  interesting to them may be
• Video (e.g.,YouTube caused a stir)
• Web 2.0 (e.g., Wikipedia, blogs)
• Other Applications (archiving, file systems,
  databases etc.)

6
Possible Video Issues

• Video routers would routers be built
  differently?
• Video congestion control will it cause a melt
  down. New TCP needed?
• Video QoS in routers delay bounds?
• Yes, decade old research but may become current
  again.

7
Possible issues for Web 2.0

• Portability currently services (e.g., blogs)
  tied to provider.
• Interconnection IM state similar to networks in
  the 70s (DEC, IBM etc.)
• Decomposability lots of standard parts written
  from scratch. Amazon, S4 storage may be a wave
  for future.